IKEA Fร–RNUFTIG air purifier review

IKEA FORNUFTIG Air Purifier

Since its conception in 1943, IKEA has been furnishing homes worldwide with modern, affordable goods. What made IKEA stand out was a straightforward innovationโ€ฆ you have to build each piece yourself.

Even though this fact has been the course of much frustration over the years (if you havenโ€™t tried to make their furniture before, trust me, itโ€™s frustrating), they can post furniture straight to your door, which keeps costs low.

IKEA has 456 stores worldwide (54 in the U.S.) and a huge marketing department, so any project they launch receives much attention from the media. 

Although IKEA is pretty new to the air purification market, they have released a few models for the home, the Fร–RNUFTIG, the UPPร…TVIND and the STARKVIND, both under $200 and the STARKVIND, which is a table with an air purifier built in.

If youโ€™ve read any of our product reviews before, youโ€™ll know that we tell you exactly what we think and pull no punches. We test every unit in our home lab and compare it with others, so you know how well it performs in real-world conditions.

how we test
How we test air purifiers

Read our full testing methodology.

We promise to tell you if we think this air purifier (or any other we test) is not worth your hard-earned money.

The lowdown on the IKEA Fร–RNUFTIG

Danny Ashton HouseFresh
“If youโ€™re looking for a budget purifier that performs well, looks good in your small room and wonโ€™t cost you much to run, the Fร–RNUFTIG is a worthy option.” 
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
IKEA FORNUFTIG Living Room

We tend to go pretty in-depth into our product reviews; if you donโ€™t have time to read into all the details, check out our Too Long; Didnโ€™t Read pros and cons to get a sense of what we thought of the Fร–RNUFTIG.

What we really like

Solid CADR to $ cost โ€” it cleared the air in our home lab in just one hour
It can be mounted on the wall, which is not something you can do with most air purifiers
The controls are straightforward and easy to figure out
Filter replacement is a simple process

What we think could be better

It doesn’t come with auto mode or sleep mode
You need to buy an activated carbon filter separately as it doesn’t come as default
It can be noisy when running at its top fan speed (60dB)

The CADR (Clean Air Delivery Rate) on the Fร–RNUFTIG can seem a little low when compared to other smaller units like the Blueair Blue Pure 411 (120 CFM) or the Medify MA-25 (135 CFM). Still, you have to remember that this unit is $75!ย But any unit under $100 that gives you a CADR over 50 deserves recognition.ย 

HouseFresh rating:โ˜…โ˜…โ˜…โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):61 minutes
Air purifier technology:Pre-filter, HEPA-Type filter and activated carbon filter
Recommended room size (4.8 air changes per hour):98 sq. ft.
Clean air delivery rate (CADR):Smoke: 63
Dust: 79
Pollen: 87
Dimensions (in inches / in cm):18H x 12W x 4D inches (45.7H x 30.5W x 10.2D cm)
Weight (in pounds / in kg):6.7 lbs (3.04 kg)
Filter life:6 months
Noise level in decibels (as reported by the manufacturer):28 – 60dB
Estimated running cost (electricity consumption + official filter replacement):$80.38 per year
Manufacturerโ€™s warranty:Fร–RNUFTIG does not come with a warranty from IKEA
Country of manufacture:Sweden

Itโ€™s IKEA, what do you expect?

The Fร–RNUFTIG sets itself apart from the usual boxy units we see day in and day out here at HouseFresh

IKEA FORNUFTIG Top Close Up

If thereโ€™s one thing that IKEA cares most about, itโ€™s the design of its products. For the Fร–RNUFTIG, IKEA enlisted one of their top designers, Swedish-born David Wahl (the man behind the award-winning PS 2014 pendant lamp). And it has paid off.

It has one solitary dial on the top to adjust the fan speed, making it super simple to operate and an excellent alternative to buttons and touch screens. A heavy-duty fabric handle on the top makes it easily transported between rooms and removable when wall-mounted.

If you donโ€™t decide to mount it on the wall, the Fร–RNUFTIG comes with a powder-coated steel stand, which only adds to the overall aesthetic. 

The fabric grill on the front reminds me of an old-school speaker cover you might find in the basement hangout on That 70โ€™s Show (they probably should have checked out our top air purifiers for weed smoke article).

Strictly from a size and design standpoint, I would compare this unit to the Blueair Blue Pure 411. Theyโ€™re both doing something bold and different and keeping the features and controls to a minimum.

IKEA FORNUFTIG VS Blueair Blue Pure 411

There are no fancy bells and whistles with the Fร–RNUFTIG, which you may either love or hate.

I like units with an air quality indicator like the one on the TaoTronics AP-003 or an intuitive auto mode like the Coway Airmega 300. Fร–RNUFTIG is as simple as they come.

IKEA FORNUFTIG Top Close Up

On the top of the unit is one dial to operate the fan. Simply twist the dial to turn the unit on to its lowest fan speed, then twist again to toggle to the other two speeds (medium and high). Thatโ€™s it, no buttons, touchscreens, remote controls or smartphone apps to contend with.

Pre-filter and HEPA but no activated carbon

You should pay the extra $17 to get the ‘Gas Filter’ to allow your IKEA Fร–RNUFTIG to handle odors and gasses

IKEA FORNUFTIG HEPA Filter

When looking for an air purifier, the filter is one of the essential parts. If the filter sucks, your air quality wonโ€™t improve.

The IKEA Fร–RNUFTIG comes with a pre-filter and a HEPA filter.

IKEA FORNUFTIG HEPA

The HEPA filter in the Fร–RNUFTIG isnโ€™t groundbreaking; in fact, it’s quite thin compared to filters in other units, but for the size of the room this unit is intended for, it does the trick.

IKEA FORNUFTIG HEPA Thin

It feels well-made and covers much of the unit’s surface area (no wasted space).

The Fร–RNUFTIG has a fabric cover on the front, which acts as a pre-filter. Again, itโ€™s not the best weโ€™ve seen, but it will stop larger particles like dust and hair, and you can remove it to vacuum, prolonging the HEPA’s life.

IKEA FORNUFTIG Pre Filter

Unfortunately, IKEA doesnโ€™t provide an activated carbon filter (which they call a Gas Filter) as standard with the Fร–RNUFTIG; you have to pay extra to have one included for an extra $17. I recommend getting this extra as activated carbon filters remove odor and other VOCs (Volatile Organic Compounds) from the air. 

If you choose not to pay for an activated carbon filter initially, you can buy and install one later.

The Fร–RNUFTIGโ€™s filters (HEPA and activated carbon) last around six months, depending on usage. You donโ€™t have to mark it in your calendar; the unit will let you know when a replacement filter is needed with a red light.

IKEA FORNUFTIG Filter Replacement Indicator Light

Itโ€™s straightforward to replace the filter with a new one; follow these easy steps:

  1. Remove the fabric grill on the front of the unit
  2. Pull the tab on the filters and pull them out
  3. Remove all the packaging from the replacement filters and insert them into the unit
  4. Replace the fabric grill
  5. Reset the replacement filter indicator

If that sounds too complicated, Iโ€™ve made a video to show you how easy it is.

Tip

When replacing the filters, always remember to remove all packaging before installing the new filters into the unit. If you donโ€™t, the filters will a. Not work and be rendered useless, and b. It will start to cause a burning or plastic smell.

IKEA’s Fร–RNUFTIG cleared our room in 65 minutes 

That is 19 minutes faster than the fancy Dyson HP04

With any air purifier, it all comes down to how well it removes contaminants from the air in your home. There is no point in having a singing all-dancing unit that wins design awards if it doesnโ€™t do its intended job.

We donโ€™t test our units in a sterile laboratory because you donโ€™t live in one. We want accurate results in a real-world environment so you know how well it will work in your home. Thatโ€™s why we test every unit we review in the same 728 cubic ft office under the same conditions. This also allows us to compare side-by-side with other units weโ€™ve tested.

To test how each unit performs, we first contaminate our room with pollution by lighting an incense stick, which fills the room with smoke. We then turn on the unit to its highest fan speed and track how long it takes to bring the particle matter down to zero.

Purple Air Monitor

To monitor this process, we use the Purple Air indoor sensor, which updates the PM1.0ug/m3, PM2.5ug/m3 and PM10.0ug/m3 levels in the room at regular intervals. These readings are then processed into a graph so we can visualize the results from each unit.

So, how did IKEAโ€™s Fร–RNUFTIG perform in our testing room?

As you can see from the graph, the Fร–RNUFTIG cleared our room in 65 minutes with PM2.5ug/m3 and PM10.0ug/m3 levels dropping fast from when the unit was turned on PM1.0ug/m3 levels dropping steadily as these are the hardest pollutants to tackle for any air purifier.

Air cleaning performance compared

The CADR rating for the Fร–RNUFTIG is 70 CFM, so we werenโ€™t expecting it to clear our room in under an hour, as weโ€™ve tested other units with similar ratings like the Dyson HP04 (89 CFM โ€” 84 minutes to clear room) and the MA-14 from Medify (70 CFM โ€” cleared our room in 77 minutes).

For the size of the unit and its price tag, IKEA has managed to build an air purifier with an impressive price-to-cleaning power ratio. Itโ€™s not just a pretty face, after all.

Noise levels test results

The Fร–RNUFTIG may look great, but the sound it creates isnโ€™t so hot. On its first fan speed setting, youโ€™ll be treated to a nice low fan whirling sound measuring around 28 dB.

When you turn this unit up another couple of notches to its max speed, you hear the Fร–RNUFTIG taking over the room. At 60 dB, youโ€™ll definitely notice this unit working away in the background, but you wonโ€™t need to have it on high for long if you’re using it in the recommended room size.

Have a listen to the sound it creates on each fan speed with our video below:

The cost to run an IKEA Fร–RNUFTIG: $80.38 per year

1. Electricity costs = $22.42

When looking at a budget to buy an air purifier, you need to consider not only the cost of the unit. Air purifiers use electricity; unfortunately, electricity costs money (now more than ever with increasing energy prices).

These days, manufacturers usually do everything they can to make their appliances as energy-efficient as possible. Still, if you have ongoing pollution problems, you may need to run your air purifiers for long periods.

Our energy usage monitor showed that the Fร–RNUFTIG only pulls 14.7 watts at its highest fan speed. We then used the average energy prices of the U.S. Bureau of Labor Statistics to uncover that the annual cost of electricity per year to run the Fร–RNUFTIG 24 hours a day non-stop is $22.42. Of course, this is an exaggeration as you’re unlikely to need to do this but it’s a way for us to see how expensive it can get to run a unit.

This is more efficient than the GermGuardian AC4825e, which uses 56 watts, cleared our testing room in 104 minutes and will cost you $121.66 annually.

2. Filter costs = $57.96

Another cost to consider is replacing the filters in this unit.

Air purifier filters trap particles in their maze of fine fibers, so they donโ€™t re-enter your environment. As time passes, these filters start filling up with pollutants and becoming less efficient, so you need to replace them periodically.

The Fร–RNUFTIG filters need to be replaced every six months (dependent on usage and air quality) and the unit will tell you when this needs to be done. Luckily, IKEA has made replacement filters inexpensive.

You can pick up their 2-piece filter set, including one HEPA filter and one activated carbon filter (the Gas filter) for $28.98. Thatโ€™s just $57.96 a year if you replace them every six months.


Bottom line

For a company that isnโ€™t associated with air quality, IKEA has made a great effort with this introduction to the air purifier market with the Fร–RNUFTIG. 

With an award-winning designer like David Wahl’s style, this unit is a big selling point as it fits into any modern home. The controls are easy to use, with only one dial to turn the unit on/off and control the fan speed, and the filters are straightforward to replace.

I feel that the lack of smart features like an air quality monitor or auto mode will exclude consumers who want to keep an eye on the air quality in their home, but keeping things simple also keeps costs down.

The cleaning power is great for a unit of this size, and with a price tag of $74.99, itโ€™s perfect if youโ€™re on a budget. It can be wall mounted and stand on the floor, giving it another edge over the competition.

IKEA FORNUFTIG Air Purifier

If youโ€™re looking for an air purifier for a smaller room on a budget that is easy to use and youโ€™re not bothered about smart features, the Fร–RNUFTIG looks great and performs well even if it is a little noisy.

For everyone else who wants a little more bang for their buck and isnโ€™t too concerned with aesthetics, check out what the new wave of budget air purifiers looks like with the Taotronics AP-003.

SOURCES

We calculated yearly costs associated with running the Ikea Fร–RNUFTIG 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

Coway Airmega AP-1512HH Mighty review

Coway Airmega AP 1512HH Corner

Today, I am reviewing one of the most popular air purifiers in the world: the Coway Airmega AP-1512HH Mighty.

Why is it so popular, you ask?

Well, the AP-1522HH has been crowned the best air purifier by the NY Timesโ€™  Wirecutter team for many years in a row.

After some digging, I found that the original Wirecutter team first picked the Airmega AP-1512HH as #1 back in 2014, two years BEFORE the NY Times bought The Wirecutter: https://web.archive.org/web/20150314221945/http://thesweethome.com/reviews/best-air-purifier/ 

10 years later, The Wirecutter still stands by this pick, featuring the Coway Airmega AP-1512HH Mighty as the best air purifier on the market today:

wirecutter number one pick AP 1512hh

I am keen to show you what our testing data says about this.

how we test
How we test air purifiers

Read our full testing methodology.

receipt Coway airmega15122hh amazon 1

We bought it back in 2022 for ยฃ199, and it is available in the U.S. today for $229.99.

I will also compare the Coway Airmega AP-1512HH against the 90+ air purifiers we have tested at HouseFresh, collecting data on air cleaning performance, sound generation, energy efficiency, real-life user experience, and long-term running costs. 

To find out more about how we test, please click the box above as I list in detail how we benchmark and test air purifiers here at housefresh.com

The lowdown on the Airmega AP-1512HH

Danny Ashton HouseFresh
“The Coway Airmega AP-1512HH is a solid air purifier with good air cleaning performance for the money. However, after testing over 90 air purifiers, I personally feel it is now a little dated.

As of 2025, there are a number of air purifiers on the market that will offer better value than the AP-1512HH.

But if you have an AP-1512HH at home, you 100% have a great device and should keep using it for as long as it runs.”

โ€” Danny Ashton, HouseFresh Founder & Senior Writer

We know that your time is precious, so hereโ€™s our Too Long; Didnโ€™t Read pros and cons about the AP-1512HH Mighty air purifier.

What we really like

Decent value for air cleaning performance when using the ionizer at full speed
Some of the cheapest OEM filters we have seen
It has a carry handle for easy transportation
It is very popular, so lots of generic filters are available
Auto-mode works well,l but you do need to keep the sensor area clean

What we think could be better

A lot more power-hungry than similar performing air purifiers we have tested
Without an ionizer, performance to $ is much less than lots of other air purifier models
At speed 2, air cleaning performance drops significantly

The specifications

Coway Airmega AP 1512HH Living Room

Before I review our testing data, letโ€™s consider what other third-party tests have to say.

The Coway Airmega AP-1512HH Mighty was CADR tested back in 2013, and you can find the results of the test on the EnergyStar website:

https://www.energystar.gov/productfinder/product/certified-room-air-cleaners/details/2359491

One paper it’s a solid machine.

It is designed to tackle contaminants in rooms around 361 sq. ft, which arenโ€™t huge, but with that CFM, it should clear rooms pretty fast (keep reading to see our performance test results).

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):26 minutes
Air purifier technology:Pre-filter, True HEPA, Activated Carbon, and Bipolar Ionizer
Recommended room size (4.8 air changes per hour):362 sq. ft.
Clean air delivery rate (CADR):Dust: 247.7 CFM
Smoke: 233.6 CFM
Pollen: 232.2 CFM
Dimensions (in inches / in cm):18.3H x 16.8W x 9.6D inches (46.5H x 42.7W x 24.4D cm)
Weight (in pounds / in kg):12.34 lbs (5.60 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 38.9 dB
Speed 2: 44.4 dB
Speed 3: 60.1 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0.3 watts
Speed 1: 3.7 watts
Speed 2: 8.7 watts
Speed 3: 75.3 watts
Estimated running cost (electricity consumption + official filter replacement):$123.63 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.77
Manufacturerโ€™s warranty:3 years
Country of manufacture:South Korea

AHAM CADR Results – One paper it’s a solid machine

Coway AHAM CADR result

The CADR test shows that the AP-1512HH has a dust CADR of 247 CFM, which is a solid score for an air purifier sold for under $250. 

This is in the same power level we see in more modern devices like:

Two things that stood out to me when comparing the CADR certificates:

  • The Coway AP-1512HH draws much more power with a dust-clean per watt of 3.14 vs. 5.7 for the Vital 200S or 4.86 for the 5500-2.
  • The Coway AP-1512HH emits 9ppb of Ozone, which is still well under the 50ppb limit set by the California Air Resources Board but higher than the 0ppb you see in the 5500-2 certificate, even though that Winix device also comes with an ionizer function. This would suggest that it uses a higher level of ionization, but when I left it running for 3 hours, I didnโ€™t detect increases in ozone. 

So, I will monitor our energy consumption and compare performance with and without the ionization function to measure the level of ionization, as well as using an ozone detector.

Please feel free to check out the full ENERGY STAR report.

Alexa, play the Imperial March

Unique black design and a straightforward control panel

Coway Airmega AP 1512HH Fireplace

Let’s look at the design for the Coway AP-1512HH. 

I will start by saying I like it, but my wife hates it. So, after we finished our user experience tests around the house, our Coway AP-1512HH made its way back into the basement.

I like that it resembles Darth Vader from Star Wars, but you can also get it in white if you prefer a more Stormtrooper style.

I agree with Gisele that the shiny plastic can easily pick up smudges from sticky fingers.

You can also get it in white if you prefer more Stormtrooper style.

Thereโ€™s no visible grill on the front like you see with other air purifiers. Instead, thereโ€™s a glossy sphere, which is like looking into the bottom of a spoon when you look into it. The control panel sits on top for easy access with the grill, meaning you can put this unit back against the wall, and it wonโ€™t affect the airflow.

Coway AP 1512HH Close Up

I sat the AP-1512HH next to our Winix 5300-2 to see how it looked compared to a unit with similar specifications. With its glossy finish and rounded corners, the Coway would fit better into a modern home. It doesnโ€™t look like a conventional air purifier, which is one of the things I love about this unit.

Coway Airmega AP 1512HH VS Winix 5300 2

Thereโ€™s nothing worse than getting a new product and having no clue how to work it. Luckily, Coway has always had the customers in mind when operating their air purifiers, and the AP-1512HH is no different.

Coway AP 1512HH Control Panel

The control panel at the top is simple and easy to use. It has 3 fan speeds, an auto mode, and an eco mode. 

The ionizer can easily be disabled by pressing the button, although when it switches off, it will default back to a mode without an ionizer. It also has a timer with 3 time options and a button for resetting the filter timer. 

One common missing feature is the child lock (another reason Gisele doesnโ€™t like it), and it also lacks app support.

Coway Airmega AP 1512HH Control Panel Close Up

On/OffPretty self-explanatory: it allows you to turn the device on and off.
Fan SpeedThis will allow you to change through the three fan speeds and also select eco and auto modes. Eco Mode turns the fan speed to its lowest to save energy. If your environment is clean after 30 mins, it will turn the fan off.
Auto ModeIt uses the unitโ€™s in-built air quality monitor and adjusts the fan speed according to its readings. If the air is bad, it will turn the fan up without you needing to press any buttons.
IonizerThis button engages the ionizer function if you wish to use it. To turn it off, simply press the button again.
TimerSelect from 1hr, 4hr, and 8hr countdowns. After the time selected has depleted the air purifier will automatically turn off.
Filter ResetWhen your filters need replacing, an indicator light will show up on the control panel. Once youโ€™ve replaced the filter(s) hit this button, so the unit knows it has fresh ones installed.

The Coway AP-1512HH has a sensor that automatically adjusts the fan speed depending on the pollutants it detects. A light at the far right changes color, but you need to be above the air purifier to see it.

Coway Airmega AP 1512HH AQI Red

The air quality indicator in the Airmega AP-1512HH will show you one of three colors:

๐Ÿ”ด Red indicates that your air is heavily polluted

๐ŸŸฃ Purple shows the room is medium polluted

๐Ÿ”ต Blue indicates your air is currently clean

Coway AP1512hh sensor

Looking at the sensor, it is a particle sensor which means you need to clean it regularly every 2 months use a Q-tip/Cotton swap to clean inside.

Powerful 4-stage filtration

Everything you need to tackle air pollutants in your home

When looking for an air purifier for your home, we recommend you only look at units that use HEPA filters as they are scientifically proven to be the most efficient method of removing airborne contaminants from your home.

When opening up the panel of the AP-1512HH, I was pleased to find a comprehensive filtration system that included the all-important HEPA filter.

Coway Airmega AP 1512HH HEPA Filter Genuine

Once you remove the front cover, you can access the filters. The first one is a removable pre-filter.

If youโ€™ve watched any of my previous air purifier reviews, you will know that I am a big fan of removable pre-filters as they are easier to clean. 

  • Pre-filter – This acts as the first line of defense against airborne contaminants. It works by trapping larger pollutants in its material, thus, prolonging the life of your HEPA. This pre-filter can also be cleaned, so you wonโ€™t need to replace it when it gets dirty.
Coway Airmega AP 1512HH Unit pre filter

  • HEPA filter – The AP-1512HH houses a True HEPA filter that traps 99.97% of tiny harmful particles like dust, pollen, mold, and smoke.
Coway Airmega AP 1512HH Unit HEPA

  • Activated carbon – Coway refers to this as their “Deodorization filter,” which is basically what it does. This sheet of bonded carbon uses a process called adsorption to trap odors and other VOCs, removing them from the air in your room. The carbon is impregnated fabric, which is cheaper and less effective than the pelleted style we see in other air purifier models. When we had this unit in our kitchen, we found it was less able to deal with odors than the Winix 5500-2 with its pelleted carbon filter.
Coway Airmega AP 1512HH Unit activated carbon

You may have noticed it says โ€œ4-stage filtrationโ€ in the title, and Iโ€™ve only mentioned three. This is because the fourth is an Ionizer. For those unfamiliar with this technology, it means the air purifier creates an electrochemical reaction in the air, which attracts additional airborne pollutants.

Tip

The manual of the Coway AP-1512HH, I recommend you keep the manual around as it has a very handy section with a table with troubleshooting tips:

AP 1512HH Troubleshooting

As with most air purifiers, they become less effective when the filters become full of pollutants. Thatโ€™s why you need to change them after some time. The HEPA and activated carbon filters need changing around every six months, but donโ€™t worry about adding it to your calendar; the Airmega will indicate when they need replacing.

  • Step 1: Remove the front panel by pulling it away from the body
  • Step 2: Unclip the pre-filter from the top and put to one side
  • Step 3: Take out the activated carbon filter
  • Step 4: Pull on the tabs to remove the HEPA filter
  • Step 5: Replace the filters and reassemble your unit 

This video will show you each step clearly:

Tip

Do me one favor: remove all the plastic packaging from the replacement filters before installing them into your air purifier. If you donโ€™t, then the filters wonโ€™t work, and youโ€™ll probably smell burning plastic after a while. Not what you want, I assure you. 

The Airmega AP-1512HH cleared our room in 26 minutes

Okay, hereโ€™s the science and probably why youโ€™re looking into this air purifier: its performance.

Unlike some other air purifier review sites, we donโ€™t rely on the manufacturer’s performance testing results because they most likely conducted those tests in a lab environment. You probably donโ€™t have a lab, and neither do we, so we do our own tests in our 728 cubic ft home lab.

Here comes the fun part…

We first fill our room full of pollution to simulate the worst-case scenario using a concentration of incense smoke. Once the room is fully contaminated, we switched the Coway onto its highest fan speed and measured how long it took for the unit to clear the room of the pollutants.

Screenshot 2025 03 22 at 17.26.23

We measured our results using a Zen sensor from Purpleair, which provides us with constant updates on PM1.0ug/m3, PM2.5ug/m3, and PM10.0ug/m3 (pollution).

Here is what we found:

As you can see from the results graph, the AP-1512HH cleared our room of contaminants in 26 minutes. This shows that its high-performance fan makes light work of heavy pollution. This goes to show that the years Coway has been making units has provided them with the technology and know-how to manufacture highly efficient air purifiers.

Air cleaning performance test results

Screenshot 2025 03 22 at 17.30.12

If we compare this to other units weโ€™ve tested, youโ€™ll see just how well the AP-1512HH performed.

We can benchmark this against other similar-priced devices running at their top speed:

Air Purifier of Cleaned our test room (Zen)Cost (RRP) 
AirFanta 3Pro17 minutes$159.99
Winix 5500-223 minutes$249.99
Levoit Vital 200S23 minutes$189.99
CleanAirKits Luggable XL-723 minutes$299.00
Smart Air SA60024 minutes$279.95
Coway Airmega AP-1512HH Mighty26 minutes$229.99
Levoit Core 400S28 minutes$219.99
Mila38 minutes$439.99

Looking at top speed performance, the Coway AP-1512HH doesnโ€™t particularly stand out when compared to some of the best devices we recommend, but it is much better value than a device like the Mila, which is nearly double the price. 

As the Coway AP1512-HH uses an ionizer, and the fact that the CADR reports a much higher ozone level than what we see with other similar performing air purifiers, we wanted to see how much of an effect the ionizer had on air cleaning performance.

When testing with the ionizer disabled the AP-1512HH achieved PM1 zero in 29 minutes :

Without the ionizer, you are looking at 3 more minutes to clean our test room.

Noise levels test results

Screenshot 2025 03 22 at 17.28.10

Another pro of this air purifier is the sound it makes. It can go from 38.9 dB (lowest fan speed) to 60.1 dB (high fan speed), which is right down the middle average for air purifiers.

If an air purifier is too loud, you are likely to turn it off, which is why it’s important to measure the sound generated at 3 feet away at different fan speeds.

Here are the results for the Coway Airmega AP-1512HH Mighty:

SpeedSound at 3ft away
138.9 dBA
244.4 dBA
360.1 dBA

But noise can be subjective to have a listen for yourself to see what you think d-.-b

We can also compare the top fan speed results with other air purifiers we have tested:

Air PurifierCleaned our test room (Zen)Sound level at top speed
AirFanta 3Pro17 minutes56.3 dBA
Winix 5500-223 minutes58.9 dBA
Levoit Vital 200S23 minutes57.7 dBA
CleanAirKits Luggable XL-723 minutes38.8 dBA
Smart Air SA60024 minutes56.7 dBA
Levoit Core 400S28 minutes53.5 dBA
Coway Airmega AP-1512HH Mighty26 minutes60.1 dBA
Mila38 minutes59.2 dBA

As the table shows, the Coway AP-1512HH runs louder than many of the other devices we have benchmarked, especially the new generation of PC fan-powered air purifiers.

One big benefit of choosing a large air purifier is that you can run it on a lower fan speed, which will be much quieter but still clean a lot of air.

That is why we re-tested the Coway AP-1512HH running at speed 2, which is under the 45 dBA recommended by Clean Air Stars for noisy offices and classrooms.

In our test, the AP-1522HH achieved PM1 zero in 51 minutes when running at sub 45 dBA:

We can compare these results with other air purifiers running at sub 45dBA:

Screenshot 2025 03 22 at 17.28.35

Air PurifierMax Sound levels at 3ft awayCleaned our test room (Zen)
Clean Air Kits Luggable XL-738.8 dBA24 minutes
Air Doctor 3000 – Speed 140.2 dBA51 minutes
Winix Zero Pro – Top speed41.1 dBA45 minutes
Levoit Vital 200S – Speed 242.5 dBA46 minutes
Taotronics AP-003 Speed 242.8 dBA47 minutes
AirFanta 3Pro – 6.54V43.3 dBA28 minutes
Coway Airmega AP-1512HH Mighty – Speed 2ย 44.4 dBA51 minutes
Smart Air Blast Mini – Speed 144.9 dBA22 minutes

The CleanAirKits Luggable-7 and the AirFanta 3Pro show how effective the new PC fan-powered devices are compared with traditional HEPA retail designs.

Even though it was louder, it still lagged behind many of the HEPA retail air purifiers we recommend here at HouseFresh when looking at air cleaning performance at sub 45dBA.

The cost to run the Coway AP-1512HH: $195.79 per year

1. Electricity costs = $83.64

Based on the CADR report results, I was interested to see how much energy the Coway Airmega AP-1512HH Mighty pulled compared to other similar-performing units.

These are the results for the Coway AP15122-HH. We also included the energy usage with and without the ionizer.

Without ionizerWith ionizer
Standby0.3 watts0.3 watts
Eco3.5 watts4.2 watts
13.7 watts4.2 watts
28.7 watts9.0 watts
375.3 watts77.3 watts

The first thing that jumps out at me about these results is the big jump in energy consumption we see when going from speed 2 to speed 3. 

We usually see gradual increases, but this data suggests that the top speed runs many times faster than speed 2. 

If you were to run the Coway Airmega AP-1512HH Mighty at top speed all day, every day of the year, then the cost would be $83.64.

We can also compare top-speed energy costs with similar-performing air purifiers:

Air Purifier of Cleaned our test room (Zen)Yearly energy usage at top speed
AirFanta 3Pro17 minutes$47.76
Winix 5500-223 minutes$59.38
Levoit Vital 200S23 minutes$49.48
CleanAirKits Luggable XL-723 minutes$11.66
Smart Air SA60024 minutes$59.76
Coway Airmega AP-1512HH 26 minutes$83.64
Levoit Core 400S28 minutes$27.44
Mila38 minutes$42.56

The Coway AP-1512HH is the most power-hungry air purifier on the market, costing much more to run in the long term than other similarly priced models.

2. Filter costs = $80.94 per year

Screenshot 2025 03 22 at 17.25.09

But itโ€™s not just energy costs that add to the running costs for an air purifier; the Coway Airmega AP-1512HH Mighty will also need its filters replacing eventually.

According to Coway, you will need to replace the carbon filters in the AP-1512HH every 6 months so twice a year and the particle filter every 12 months.

Coway offers a pack where you can buy both HEPA and two activated carbon filters together, saving you time and money in making several purchases. This pack retails at $57.49 from their site, but there are always deals on Amazon.

We can compare this with other similar performing air purifiers and get a yearly running cost comparison:

We can compare this with other similar performing air purifiers and get a yearly running cost comparison:

Air Purifier of Annual Energy Cost Annual Filter CostTotal Annual Cost
AirFanta 3Pro$47.76$78.67$126.43
Winix 5500-2$59.38$79.99$139.37
Levoit Vital 200S$49.48$49.99$99.47
CleanAirKits Luggable XL-7$11.66$43.64$55.30
Smart Air SA600$59.76$271.35$331.11
Levoit Core 400S$27.44$99.98$127.42
Coway Airmega AP-1512HH Mighty$83.64$39.99$123.63
Mila$42.56$168.00$210.56

The Coway AP-1512HH has some of the lowest filter costs we have seen for OEM HEPA retail devices, and this is great because these lower filter replacement costs help balance the higher energy consumption costs.

This makes it one of the cheapest air purifiers to run in the long term. It still lags behind the newer Levoit Vital 200S and the PC-fan-powered CleanAirKits Luggable XL-7 but is ahead of everyone else on the list.

If you want to trim the costs even further, you can use generic filters, which can cost as little as $15-20 per filter. However, you must be aware that generic filters will likely impact air cleaning performance.

I bought the Pureburg filters to compare performance and found that they had the same speed in our test room. When using the ionizer, they achieved PM1 zero in 26 minutes.

As the price difference between generics and OEM filters is so small, I donโ€™t see a significant reason why you would go down the generic route with the Coway AP-1512HH.

Bottom line

The Coway Airmega AP-1512HH is a reliable air purifier that offers good air cleaning performance for its price.ย 

Additionally, due to their popularity, OEM filters are among the most affordable options we have found outside of IKEA.ย 

As I said at the beginning, the AP-1512HH is the most popular air purifier in the world. Not only does The Wirecutter recommend it, but every other newspaper and magazine on the web does, too.

Coway Airmega AP 1512HH Living Room

However, after testing over 90 air purifiers, it is now a little dated.

In 2025, there are air purifiers on the market that will offer better value than the AP-1512HH:

  • The AirFanta 3Pro costs $70 less and will offer nearly double air cleaning performance.
  • The Levoit Vital 200S costs $50 less and comes with app support, a child lock and lower running costs due to a more efficient fan motor.
  • The CleanAirKits Luggable XL-7 costs around the same price if you go for a DIY kit and will give you more powerful air cleaning at a whisper-quiet operation.
  • The Winix 5500-2 usually costs $190 and comes with a much better-activated carbon filter that uses pelleted carbon instead of the impregnated fabric carbon you get with the AP-1512HH.

If you have an AP-1512HH at home, you 100% have a great device and should keep using it for as long as it runs.

But for those buying an air purifier for the first time, there are better options for performance, value, energy efficiency, sound generated and odor removal. 

As always, please let me know if you have any specific questions about the Airmega AP-1512HH in the comments below. This is how we received the idea to test generic filters.

SOURCES

We calculated yearly costs associated with running the Coway Airmega AP-1512HH Mighty for 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of January 2025.

Mila air purifier review

Mila Air Purifier Kitchen

I became aware of Mila air purifiers in 2020, but the company was founded in 2015 in San Francisco. They certainly have top-end marketing skills, but their air purifier was only available directly through their website for many years. So, I got excited when I discovered it was available on Amazon a few months ago.

They use the simple filter technologies we care about here at HouseFresh with HEPA and activated charcoal, both of which have decades of science to back up their air-cleaning capabilities. Mila also allows you to customize your filter choice for specific situations like allergies, baby diapers and even VOCs from a home move.

Most air purifiers are simple devices, with smarter models allowing the device to turn on if it detects problems. The Mila takes this further, using its onboard computer to analyze your home air in real time. You can then enable the air purifier to work harder when you are not in the room to avoid higher speeds when you are close to it. 

It even tracks your bedtime! You can enable a โ€œturn downโ€ that switches the air purifier on one hour before so the air is cleaned just before you go to sleep.

The downside is that they donโ€™t come cheap, with the most affordable package costing upwards of $400 – for half the price, you will get better air cleaning performance with something like a Levoit Core 400S or even three Taotronics AP003, but I do think that the Mila comes with many quality of life upgrades and that some customers will prefer to pay a little more initially.

Whatโ€™s refreshing about Mila is that they only have one model and recommend that customers buy extra units for more rooms or bigger spaces. Mila suggests one unit for any room you spend a lot of time in. 

We updated our Mila air purifier review and posted it on YouTube, which has several updates over this current review.

how we test
How we test air purifiers

Read our full testing methodology.

The Lowdown on the Mila

Danny Ashton HouseFresh
โ€œThe Mila air purifier is for those who want smart home features and are happy to pay for them.โ€
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Mila Air Purifier Fireplace

$297 AT MILA

If you only want the choice cuts and donโ€™t want to read my full review (how dare you), then here are the key things from this review:

What we really like

Smart home features that do make it easier to use and keep your home free of pollutants.
On-board sensor can detect PM1, PM2.5, PM10, VOCs, CO2, CO1 and temperature continuously. 
Simple user experience with auto mode defaulted, requiring no techy skills to start cleaning home air.
One air purifier, multiple options of filters for specific use cases.
It’s a great looking unit that doesnโ€™t take up too much space.

What we think could be better

Air cleaning performance to $ ratio is higher than a non-smart air purifier, so you do pay extra for all the smart features.
Filter costs are on the high side compared to similar-performing purifiers.
The names of the filters are a little too much!

The specifications

This unit has a similar cleaning power as the Coway Airmega 150 or the Levoit Core 300S and can run fairly quietly at 37.5 dB at its very lowest. Electricity costs are optimal for a unit with this performance, but filter costs are slightly higher. 

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):35 minutes
Air purifier technology:HEPA (ranges from H12-H14) and ganular activated carbon filter
Recommended room size (4.8 air changes per hour):217 sq. ft.
Clean air delivery rate (CADR):Dust: 146 CFM
Smoke: 140 CFM
Pollen: 152 CFM
Dimensions (in inches / in cm):12L x 12W x 15H inches (30.48L x 30.48W x 38.1H cm)
Weight (in pounds / in kg):18 lbs (8.16 kg)
Filter life:6 months 
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 37.5 dB
Speed 3: 42.2 dB
Speed 6: 54.8 dB
Speed 8: 58.8 dB
Speed 10: 59.2 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 5.62 watts
Speed 1: 8.42 watts
Speed 3: 10.1 watts
Speed 6: 20.45 watts
Speed 8: 36.2 watts
Speed 10: 38.32 watts
Estimated running cost (electricity consumption + official filter replacement):$208.45 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$3.22
Manufacturerโ€™s warranty:1 year
Country of manufacture:Designed in the U.S., assembled in China

Stylish air purifier with Google Nest Thermostat bibes

The Mila is a good-sized air purifier that looks stylish.

Mila Air Purifier Close Up

Many top-performing air purifiers are large and hard to live with, with most of them needing wheels to be moved around the house due to how heavy they are.

No, that is not the case with Mila. We’re talking here about an air purifier with a low-height profile designed to be looked at.

Mila Air Purifier Room 2

Similarly to the Smart Air S, the Mila was one of the very few air purifiers I brought home that my wife liked the look of. With its wooden legs and its dotted body, this air purifier blends into our home dรฉcor in a way that most units don’t. You wonโ€™t mind keeping this air purifier on show like a smart thermostat or smart speaker.

The control panel sits nicely at the top of the unit, making it easy to control the different functions without the need to move the unit around. The touch screen is easy to use, with just three buttons: a Mode button in the center (o) and the fan speed controls on each side (- and +).

Mila Air Purifier Top

Even though you can select a Manual mode when tapping the Mode button (o), the Mila is a smart air purifier designed to get to work automatically without the need to make adjustments on the control panel or the app.

The moment you turn on the unit, the Mila will go into Calibration Mode before switching to Automagic Mode automatically. When in Automagic Mode, the air purifier will choose the fan speed automatically based on the air quality level detected inside the room:

Mila Air Purifier Control Screen Auto

But that doesn’t mean you can’t make further adjustments inside Automagic mode. There are seven unique settings housed under Mila’s Automagic mode:

Mila Automagic Options

As I mentioned above, there is also a Manual Mode available, which you will be able to choose by tapping the Mode (o) button and then tapping the (+) button to change from Automagic Mode (the default mode) to Manual Mode. You will need to tap the Mode (o) button one last time in order to confirm your selection.

When running your Mila in Manual Mode, you will be able to adjust the fan speeds manually by touching the (-) and (+) buttons. You will notice that each time you change the fan speed, the timer will also change according to the new calculations your Mila has made to figure out the estimated time it will take to clean the air based on fan speed and room size. Another thing that will change is the value for the “Target AQI” (the projected air quality index score under the new conditions you have set).

Mila Air Purifier Control Screen Manual

Personally, I would recommend you let the Mila decide what to do, as it is more than capable of figuring out what is needed based on its calculations. Plus, this smart brain comes at a hefty price tag, so you will want to use it if you have paid extra.

You will also be able to pair your Mila to your phone by using the Mila app. The process is simple and painless: you tap and hold the Mode (o) button for 5 seconds, open the app on your phone and connect to the network called “Mila Air Purifier” so you can follow further instructions.

This is where I feel in love with the Mila: I got the app to connect to my Android smartphone straight away, which is a rarity for other air purifier brands:

Mila Air Purifier App

You can enable eight modes, each focusing on things like energy efficiency or sound levels and specific usage routines.

My favorite was a mode called “Bubble Boy Mode”, which is just a mode that instructs your Mila to keep the air as clean as possible at all times. Another mode I found myself using regularly was the “Housekeeping Mode”, which turns on the Mila automatically one hour before your bedtime to keep the air as clean as possible before sleep.

I liked that Mila shared the functionality issues of their device and app, from device pairing issues to device connections. They regularly update these issues at status.milacares.com. The fact that they share this publicly makes me feel confident that this is a core focus for them as a company. 

Seven HEPA filter choices

When you buy a Mila air purifier, you will have seven filter options that use different HEPA types, from H12-H13.

Mila Air Purifier Removing Filter

Something I appreciated is that you can also choose the amount of activated carbon you want so you can tailor it based on the gasses and odors you need to tackle.

Mila Air Purifier Filter 1

This way of using filters aligns with how we see the science of air cleaning with mechanical filters. Far too many brands like to make it sound like rocket science, but keeping the air clean is as simple as pushing it through two filters. 

Here is a breakdown of the characteristics, use cases and prices for all seven Mila filters:

Mila FilterCADRFilter TypeGood ForFilter Cost
The Basic Breather447H12 HEPA๐Ÿš• Pollution
๐Ÿงน Dust
๐Ÿšฌ Smoke
$74.00
The Big Sneeze416H13 HEPA๐ŸŒป Pollen
๐Ÿˆ Dander
๐Ÿคง Dust allergies
$84.00
The Rookie Parent365H12 HEPA + 0.70 lb Activated Carbon๐Ÿš• Pollution
๐Ÿงน Dust
๐Ÿšฌ Smoke
๐Ÿ‘ƒ Odors
๐Ÿงช VOCs
$84.00
The Critter Cuddler350H13 HEPA + 0.84 lb Activated Carbon๐ŸŒป Pollen
๐Ÿˆ Dander
๐Ÿคง Dust allergies
๐Ÿ‘ƒ Odors
๐Ÿงช VOCs
$94.00
The Home Wrecker300H12 HEPA + 1.96 Activated Carbon๐Ÿš• Pollution
๐Ÿงน Dust
๐Ÿšฌ Smoke
๐Ÿˆ Dander
๐Ÿ‘ƒ Odors
๐Ÿงช VOCs
โ˜  Formaldehyde
$94.00
The Mama-to-Be254H14 HEPA + 0.70 lb Activated Carbon๐Ÿš• Pollution
๐Ÿˆ Dander
๐ŸŒป Pollen
๐Ÿงน Dust
๐Ÿšฌ Smoke
๐Ÿ‘ƒ Odors
๐Ÿงช VOCs
๐Ÿ”ฌ Ultrafine particulate (PM2.5)
๐Ÿฆ  Viruses and bacteria
$94.00
The Overreactor254H14 HEPA + 1.25 lb Activated Carbon๐Ÿš• Pollution
๐Ÿˆ Dander
๐ŸŒป Pollen
๐Ÿงน Dust
๐Ÿšฌ Smoke
๐Ÿ‘ƒ Odors
๐Ÿงช VOCs
โ˜  Formaldehyde
๐Ÿ”ฌ Ultrafine particulate (PM2.5)
๐Ÿฆ  Viruses and bacteria
$104.00

You can get filters that donโ€™t have any activated charcoal. Still, I recommend that most people get at least some; otherwise, you cannot remove odors or gasses from the air.

The activated charcoal filter costs a little more, but I recommend it if you choose to use a Mila as your air purifier.

Mila Air Purifier Filter 2

When it comes to replacing the filter in your Mila air purifier, the process is super simple and straightforward. Check out the video below to see how to do it:

As with all good HEPA-based filters, the filter is supplied in a sealed plastic bag, so you need to make sure that you remove these before you start the unit. Mila does an excellent job of explaining this common error that people make by making it clear with stickers on the outside. 


The Mila cleared our test room in 35 minutes

We tested the ability of the Mila air purifier to remove particles from the air in the same room (our 728 cubic ft home lab) where we evaluate the performance of all our air purifiers. Our indoor sensor from Purpleair updates on PM1.0ug/m3, PM2.5ug/m3 and PM10.0 ug/m3.

Mila Air Purifier Testing

We visualized the data from the Purpleair sensor so you can see how smoke pollutants were cleaned from the air from the moment we turned on the Mila inside our test room:

Air cleaning performance test results

With a CADR score of 146 CFM for dust, we expected similar results to the Levoit Core 300S, which cleaned our test room in 32 minutes. The final time for the Mila air purifier was 35 minutes, matching our expectations of the lab CADR scores. 

The Mila can clean much quicker than a unit like the Levoit Core 200S, which has a CADR of 109 CFM (200.6 mยณ/h), and it took 61 minutes to clean our test room. So overall, even though it wasn’t the fastest unit to clear the incense smoke out of the air of our testing room, it performed better than the average across all units we tested.

Noise levels test results

On higher speeds, the Mila will go up to 59.2dB, which is not intrusive, but even so, in everyday usage, we found it rarely used this high power unless we were out of the room in automatic mode. 

Mila Air Purifier Sound

That said, we know that what we consider a comfortable noise level might be uncomfortable for someone else. Have a listen for yourself in the video below, where we show the different level of noise associated with running the Mila air purifier across each of its fan speed levels (when on Manual Mode):


The cost to run the Mila: $208.45 per year

1. Electricity costs = $58.45

Energy costs are rising worldwide and are certainly something to consider as many older units used to be 100W or more. Thankfully, the Mila air purifier has a 38.3 W max of around $60 a year, assuming it runs at full speed, which would be pretty unlikely unless you lived in a location with terrible outdoor air pollution. So, efficiency-wise, the Mila is good. 

2. Filter costs = $150

The filters are replaced every six months and can be around $150-$200 a year, depending on your chosen filter. This is higher than average but not in the same realms as the IQAir Healthpro Plus, which has filters that cost $250 for just the HEPA element. 

Bottom line

Overall, this is the first true โ€œSmart Homeโ€ air purifier that does a great job of cleaning the air in your home. You have to know that it will mean paying more both in the long and short term, but it does come with many more features than your average air purifier. 

Mila Air Purifier Hallway

At this price point, you could get a Coway Airmega 300S with higher air-cleaning performance, but it lacks many of the smart features you find with the Mila. Suppose you want smart features and a decent air purifier. In that case, the Mila is currently the top unit I recommend.

SOURCES

We calculated yearly costs associated with running the Mila Air Purifier 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

At HouseFresh, we have been reviewing air quality products since 2010. In all these years, we learned not to rely on manufacturers’ claims and the ever-so-glowing marketing materials. That is why we buy products with our own money, so we can write unbiased reviews after we’ve had enough time to evaluate air quality products in our home lab. Every unit we recommend has been thoroughly tested to assess its performance, energy consumption, and noise levels emitted in real-life environments. If you have any questions about our testing process for different types of air quality products, just drop us an email at danny@housefresh.com.

Levoit Core 400S review

Levoit Core 400S Living Room 2 1

Today, I am reviewing a highly popular air purifier from Levoit that came on the market in 2021: the Levoit Core 400S.

This mid-sized air purifier sits between the Core 300S and the larger Core 600S, and it comes with the same cylindrical design and smart features such as the VeSync app.

The overall score for the Levoit Core 400S incorporates first-hand data results from our battery of tests, as well as our ratings for customer service, brand transparency and design & UX. Check out the full scorecard below to see the split of categories.

I have tested and compared the U.S. version with the European version in our YouTube channel, and learned that performance varies between the two. You can watch the video below:

As always, we bought both of our Core 400S devices with out own money so we could write an unbiased review, getting to experience the same customer journey you will if you decide to buy it. If you want to support the work we do at HouseFresh, please use the links in the buttons used throughout this page – we will earn a small commission at no extra charge to you.

The pros and cons of the Core 400S

A summary of our top-level findings after testing this air purifier following our methodology.

Levoit Core 400S Living Room.jpg

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

โ€œA solid option to consider with medium-sized rooms and those who value smart features like app support, auto-mode, and a screen that displays air quality levels in real time.

That said, I still think most people would be better off with the slightly cheaper Vital 200S thanks to its removable pre-filter, but the Core 400S is worthy of consideration, especially if you prefer the cylindrical designโ€

Danny Ashton HouseFresh
Danny Ashton
HouseFresh Founder
& Lead Tester

Looking for some quick-fire facts on the 400S? Here are the key points from my full review. 

CONS

There is no clear information anywhere about the differences between the European and the U.S. version of the Core 400S.
It uses a bonded filter so the pre-filter is attached to the main filter, which makes it inconvenient for cleaning regularly. Plus, you will need to replace the entire thing once the carbon is full, even if the particle still has life in it.
And we have the whole issue with Dysonโ€™s complaint against Levoit with the BBB that led to Levoit removing the term HEPA from their marketing materials.

PROS

The U.S. version has great performance at sub-45 dBA fan speeds (134 cfm). The EU version was six minutes slower than the U.S. version (118 cfm).
You get filter options with different amounts of carbon, with the top one being 450 grams (Smoke Remover), which is the most you will get with any Levoit device.
The cylindrical design takes up less floor space than the traditional boxy air purifier design.
Super energy efficient, drawing 38 watts on its highest speed setting
The app has a ton of useful features and it is constantly updated and improved.

Clean air delivery rateย (CADR):โ€“ Top speed PM1 CADR: 213 cfm
โ€“ Sub-45 dBA PM1 CADR: 134 cfm
โ€“ AHAM PM2.5 CADR: 247 cfm (dust)
Filtration technology:Pre-filter for large particles, main filter for airborne particles and activated carbon filter for odors and gasses
Recommended room size:319 sq. ft. (5 air changes per hour)
Dimensions:10.8L x 10.8W x 20.5H inches (27.4L x 27.4W x 52H cm)
Weight:11.2 lbs (5 kg)
Filter lifespan:6 months
Noise level in decibels from 3 ft. away:Sleep mode: 35.5 dBA
Speed 1: 38.3 dBA
Speed 2: 43.2 dBA
Speed 3: 51.2 dBA
Speed 4: 60.3 dBA
Electricity consumption in watts:Standby: 0.93 watts
Sleep mode: 3.05 watts
Speed 1: 5.28 watts
Speed 2: 8.51 watts
Speed 3: 16.41 watts
Speed 4: 39.64 watts
Manufacturerโ€™s warranty:2 years
Country of origin:United States
Country of manufacture:China

Design and controls

The 400S might not set the world alight with its appearance but is well-designed with some useful smart functions.

Levoit Core 400S Kitchen

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

Those who own any of the Levoit Core series will recognize the design of the Core 400S. 

Similar to the 300S and the 600S, it uses a cylindrical design which means it is more compact and takes up less floor space than the rectangular designs we see with the Vital series. 

Levoit Core 300S VS 400S VS 600S

While itโ€™s much bigger than the Core 300S, it feels more manageable than the very large 600S, and as itโ€™s less imposing. Personally, I prefer the design of the 400S over the larger 600S. 

Core 400S filter

Like the other devices in the Core series, the filter in the 400S is bonded, so the particle filter and carbon are combined into one filter, with a layer of mesh pre-filter on top.

This means that cleaning the pre-filter will involve taking out the entire filter, which is more cumbersome and may lead you to clean the pre-filter less often.

Core 400S sensor

The 400S comes with a laser air quality sensor that is better than the standard optical sensors that come with most air purifiers.

According to Levoit, you still need to clean with a vacuum cleaner every few months, but it is quicker to respond and more accurate than optical sensors.

Core 400S control panel

You get an LED ring on the control panel that changes color depending on the air quality. But unlike the 300S, you also get the particle count on a little screen inside the ring.

On the panel you’ll get a button to adjust the fan speed, sleep mode, auto mode, a button to switch off the lights, a child lock, a timer and a filter replacement indicator.

App connectivity

Those with smart homes will appreciate that you can connect the Core 400S to your phone and your smart home hub.

You can operate the 400S from your phone through the Vesync app, which is the same app that is used across all Levoit smart appliances. Once the app is set up, you can also use Amazon Alexa or Google home to control/access the air purifier. 

core 400S app1

Through the app, you can do the usual stuff like scheduling routines but you can also change the settings of the auto mode. This is something I wish more air purifiers would allow so you get to decide whether you want auto mode to hit the top fan speed or not. 

Usually auto modes donโ€™t hit the top fan speed to reduce noise and energy consumption, but this leads to the air not being cleaned as fast and effectively as it could be.

core 400S app2

One thing that is worth noting is that Levoit has been busy rolling out new features for its app that will work across all models.

The tracking history of indoor air quality data is much better than it used to be, with regular intervals graphed out, including what mode the Core 400S was on at the time. I hope to see Levoit continue to improve the app support through regular updates.

All in all, the VeSync app is one of my favorite air purifier apps, but I do find the constant ads annoying. When I go on it, I do it to manage my Levoit devices so I donโ€™t really want to see adverts for other Levoit products. I much prefer a cleaner design that just gives me the tools I need without it turning into a sales pitch to sell me more products. 

Filtration technology

For those looking for an air purifier to tackle odors, the 400S is a better choice than the larger 600S due to the option of a Smoke Remover filter with 450 grams of carbon.

Before I take you through what you get with the filter, we first need to talk about the change in marketing Levoit made after Dyson made a complaint to the BBB. When we bought our Core 400S, the filter was labelled as HEPA H13, but in late 2023 Levoit changed their marketing to remove all mentions of HEPA H13 after Dyson complained about the filters not being HEPA H13 certified.

However, after having tested over 100 air purifiers, I can confidently say that you donโ€™t need a HEPA filter to get excellent air cleaning performance, as shown by what we saw when testing the Luggable XL-7 from CleanAirKits with its MERV 13 filters. This can be explained by the fact that high-grade HEPA filters will restrict the air passing through them, which in turn leads to lower airflow compared to low-grade particle filters that can benefit from the air passing through the filter multiple times.

Having said that, I still donโ€™t think it’s okay for Levoit to say one thing publicly across their marketing and then take it all away quietly without any explanation of what happened or any sort of clarification on the grade of their filters.

Anyway, let me tell you about the filterโ€ฆ

core 400S prefilter

The Levoit Core 400S has a cylindrical bonded filter that is larger than what you get with the Core 300S but smaller than the filter in the Core 600S.

As we’ve come to expect from Levoit, you will find that there are multiple options for filters, each with different amounts of carbon.

levoit core 400s filters

The Original filter has 240g of carbon. The Pet Allergy and Toxin Absorber filter have 400g of carbon. Finally, the Smoke Remover filter comes with 450g of carbon.

The Levoit Core 400S with the Smoke Remover filter has the highest amount of carbon in the entire Levoit range.

Be aware that even though more activated carbon will be better for dealing with odors and gases, it will also reduce particle removal performance as carbon restricts airflow. So, if you donโ€™t need the extra carbon, you are better off sticking with the original filters as they will save you money and offer higher CADR for removing particles.

Itโ€™s super simple to install and replace these filters. All you have to do is twist the body of the purifier, slot in the cylindrical filter with the tabs facing up, and reassemble the unit. Check out our short video below to see just how easy it is. 

The Levoit Core 400S I’m reviewing here doesn’t have an ionizer function but there is a version of the model that does: the PlasmaProยฎ 400S Smart Air Purifier.

400s plasmapro

Levoit’s PlasmaPro technology generates positive and negative ions that bind with pollutants to help neutralize them. This is similar to what we see in Winix units and their PlasmaWave technology.

Levoit air purifiers equipped with PlasmaPro have a button on their control panel with a leaf next to a plus (+) and minus (-) symbol that you can press to enable and disable this bipolar ionization technology.

Air cleaning performance

Our American Core 400S cleared our test room in 24 minutes, whereas our European version needed 30 minutes.

core 400s performance

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

According to our PurpleAir Zen sensor, the U.S. version of the Core 400S needed 24 minutes to achieve PM1 zero in our 728 cubic ft. test room โ€” we estimate a PM1 CADR of 213 cfm.

We were surprised to see that the European version of the 400S was slower, needing 30 minutes so we estimate a PM1 CADR of 198 cfm.

You can see the results of both tests in the chart below:

As you can see from the table, the U.S. Core 400S performs as well as the best devices we have tested when running at top speed.

core 400s comparison top speed scaled

When comparing against other units in the Levoit range, it becomes clear that the mid-sized Core 400S offers good value for your money:

performance comparison levoit core range scaled

I reached out to Levoit’s customer support team to confirm whether the two devices were supposed to be the same as I noticed that the same CADR figure was used in the marketing material in Europe and in the U.S.

โ€œThe European Core 400S model has been optimized with a focus on noise reduction. Extensive user research revealed that noise levels are a significant consideration for European customers. By optimizing the wattage, we are able to deliver a quieter experience without compromising essential air purification capabilities, ensuring a product that aligns with local expectations for comfort and usability.”

Levoit Customer Support

So it seems that the European version has been designed to be quieter which neatly brings us to the next part of our testingโ€ฆ

Sound levels

In our testing, the sound levels of the U.S. Core 400S ranged from 35.5 dBA to 60.3 dBA, and the European version ranged from 35.5 dBA to 55.9 dBA.

core 400s sound energy test

If an air purifier is too loud, you will turn it off eventually. That is why we always measure how much sound each air purifier generates from three (3) feet away.

core 400s us eu sound levels

Be aware our background noise is 35 dBA, so the 400S running at sleep and speed 1 is likely to generate less sound if you could measure it in a silent room.

Sound levels at low fan speeds are very similar but the U.S. version runs louder top speed. Compared to some of the best HEPA retail devices we have tested, the European Core 400S is quietest at top speed, but as expected, it canโ€™t compare with a PC fan air purifier like the Luggable XL-7.

core 400s performance vs sound scaled

However, you are unlikely to want to run your device at top speed all the time, so we found a fan speed at which the Core 400S generates less than 45 dBA of noise, which is the limit we have set for our quiet performance tests.

Running at speed 2 the European model hits 44.4 dBA and the American version hits 43.2 dBA, so we repeated the particle removal test with both devices running at that sub-45 dBA speed.

core 400s quiet performance scaled

The U.S. version running at speed 2 is much closer to other mid-sized devices like the Vital 200S and Winix 5500-2 but canโ€™t compete with much larger CADR devices like the Levoit EverestAir.

But as with most HEPA retail design it canโ€™t compete with PC fan-powered devices like the Luggable XL and AirFanta 3Pro.

Long-term running costs

Running a Core 400S will cost you $144.41 per year, combining energy consumption costs and filter replacement prices.

As always, we used our energy meter to measure how much electricity the 400S uses when running at each fan speed and also while on standby.

core 400s energy consumption

As with sound, the difference in energy usage only shows at the top fan speed. If you had to leave your European Core 400S running 24/7, it would cost $26.07 in energy costs for a year and for the U.S. Core 400S it would cost $44.43

Considering you need to replace the filter every six months and that the replacement costs $49.99, you can expect to also spend $99.98 per year on filters.

When combining energy and filter costs, you can expect to pay $126.06 if you buy the European version and $144.41 if you get the U.S. version, due to the slightly higher energy consumption.

core 400s long term costs scaled

There are many generic filters available, starting at $34.99 per filter. We will run performance tests with a range of generic filters for our Patreon supporters.

Bottom line: Is the Levoit Core 400S worth it?

It really depends on the version you get, as the European version and U.S. version are not the same.

The European Core 400S will cost less to run at top speed on a yearly basis, but the U.S. version offers better air cleaning performance at more usable speeds under 45 dBA.

Levoit Core 400S Living Room 2 1

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

Its size is much easier to live with compared to the Core 600S and Levoit EverestAir, and it requires less floor space than the Vital 200S.

While it lacks the Vital 200S removable pre-filter, the Core 400S still has all the smart functionality and features of the latest series, and I was pleased to see that Levoit has been adding new features to the app.

The OEM filters are fairly priced and thanks to the efficient fan motor, it doesn’t consume as much energy as other mid-sized air purifiers. 

Another pro is that its Smoke Remover filter comes packed with the highest amount of pelleted activated carbon in the Levoit Core range, including the much pricier Levoit EverestAir, which has 400 grams of carbon.

For those wanting a cheap air purifier with a good amount of carbon to help remove odors, the Core 400S with the Smoke Remover filter is the best option available under $250. In fact, you will usually find it online at around $180.

carbon filters compared

This review is a great example of how important first-hand testing is, as the AHAM report available on the EnergyStar website shows one CADR figure for the Levoit Core 400S but our testing shows that there are CADR differences between the U.S. version of this device and the model sold across Europe.

If you appreciate the lengths we go to with our air purifier reviews, be sure to use the links in the buttons. We will get a small affiliate commission at no extra cost to you, and it will help support the work we do here at HouseFresh.

Have you got any questions about the Core 400S that I didn’t answer in my review? Please, drop them in the comments below and I’ll reply as soon as I can.

TaoTronics AP003 review

TaoTronics TT AP003 Room 1 1 e1680774717302

TaoTronics is an interesting brand that is part of the Sunvalley group based in China, which was profiled by The New York Times back in 2017. They offer a wide range of technology products, from headphones to air purifiers.

At one point, TaoTronics was making $300 million from Amazon alone, so it was a shock when I read that all brands under the Sunvalley group were kicked off Amazon last year for breaking review rules. 

As we generally focus on air purifiers readily available on Amazon, we hadnโ€™t yet had a chance to test any of the units from TaoTronics. Still, I chose to push ahead with a review after using a tool from ClearnAirStars, an NGO run by Dr. Pieter Peach from Australia. His tool results showed the TaoTronics AP003 was at the top for best performance for non-DIY air purifiers! So, I had high hopes for this unit.

When Chinese brands first entered the U.S. market with their generic designs, they could often compete on price but were disappointed with the quality. As any consumer will now relate, Chinese versions of electrical appliances can now match the performance of Western brands and, in many cases, even outperform them.

The TaoTronics AP003 clearly focuses on the budget end of the air purifier market. With an entry price of $99.77 but a CADR of 226 CFM (384 mยณ/h), its performance aligns with far higher-priced units.

On paper, the AP-003 looks like โ€˜the Levoit Core 300 killerโ€™, with the ability to clean more air for less money. But we must take a more in-depth look at this unit before celebrating too early.

As with all our reviews here at HouseFresh, we bought the TTAP003 with our money. In this case, we bought the unit directly from taotronics.com, and while it wasnโ€™t as fast as Amazon, the delivery was within just a few days, and the communication was excellent along the way.

We use our own money because we donโ€™t want any external biases. We want to say exactly what we think so that our readers can choose the right unit for their particular use case. We also donโ€™t just take CADR figures for granted; we test using our own equipment to see how real-world performance matches up to the numbers on the box.

how we test
How we test air purifiers

Read our full testing methodology.

We believe this is the only way you can assess and compare air purifiers fairly, as we tested them all performing the exact same jobs under the exact same conditions. This is how we can uncover jewels (like the AP003) and highlight devices that don’t live up to the hype (cough, Molekule cough).

So, let me walk you through what we learned when testing this air purifier.

The lowdown on the TaoTronics AP-003

Danny Ashton HouseFresh
“The TaoTronics AP-003 is a budget air purifier that offers powerful air cleaning power and features premium functions. Unfortunately, it won’t be available on Amazon, but you can buy it directly from the TaoTronics store and also might find it on eBay for less than $99.

As of September 2024, finding this device is becoming increasingly difficult, so I recommend looking into one of the various other brands selling the exact same model as the AP-003 is a white-labeled design. I tested the Lago air purifier (available in the U.S.) and the Midea SmartAir Pure Control (available in Europe), with both devices matching the performance, noise level generation and electricity consumption of the TaoTronics AP-003.”

โ€” Danny Ashton, HouseFresh Founder & Senior Writer

PRICE IN EUROPE PRICE IN THE U.K.

If you donโ€™t have the time to read my 3000+ word review, then get the main gist with the following bullet points:

What we really like

It costs less than $100 to achieve the high-speed air cleaning performance you can expect from devices that cost twice as much.
Sound levels are well below industry standard, which confirms the presence of a very efficient motor.
It comes with Pure HEPA and activated charcoal. There isn’t an ionizer, which means zero ozone is created.
One of the best-priced filters we have seen for units with such large filters.
It comes with activated charcoal pellets, normally only seen in premium units that cost about $200.

What we think could be better

It is currently out of stock on the TaoTronics store and finding it on eBay is becoming impossible. Fortunately, you can buy the same device sold under other brands, such as Lago in the U.S. or Midea in Europe.
There is no app support. This doesnโ€™t bother me, but it is something to consider.
It doesn’t come with enough activated charcoal to tackle serious issues related to VOCs.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜…
Time to clean our 728 cubic feet test room (with the device running at top speed):26 minutes
Air purifier technology:H13 HEPA with activated carbon pellets
Recommended room size (4.8 air changes per hour):307 sq. ft.
Clean air delivery rate (CADR):Dust: 202 CFM
Smoke: 198 CFM
Pollen: 215 CFM
Dimensions (in inches / in cm):21.8 x 14.1 x 7.9 inches (55.4 x 35.8 x 20cm)
Weight (in pounds / in kg):13.64 lbs (6.19 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 38.4 dB
Speed 2: 42.8 dB
Speed 3: 54.2 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0.7 watts
Speed 1: 5.9 watts
Speed 2: 10.5 watts
Speed 3: 36.5 watts
Estimated running cost (electricity consumption + official filter replacement):$90.66 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.49
Manufacturerโ€™s warranty:1 year
Country of manufacture:China

Looks good, modern (and expensive)

The TaoTronics AP003 comes with a sleek design and looks way more expensive than it costs.

TaoTronics TT AP003 Close

One of the big things Chinese manufacturers have been investing in is improving product design style. When my wife saw the AP-003, she thought it looked good (and expensive), which is an impressive job considering this unit is less than $100. It looks modern but doesnโ€™t have a strange shape, so it should be easy to have in the corner of a room without looking out of place.

TaoTronics TT AP003 Sofa Corner

The main thing that stands out with this air purifier is the screen that shows the current air quality level. It doesnโ€™t just give an estimate like many of the other air purifiers that contain sensors but it shows the exact level of pollutants to the nearest ug/m3. The screen looks high-end and doesnโ€™t match the budget cost.

TaoTronics TT AP003 Screen

The inclusion of the screen makes a big difference compared with the Levoit Core 300S. Whilst most people can easily see that blue is clean and red is problematic, having the exact figure feels like a big step up. It is certainly bigger than the Levoit Core 300S and has a large footprint, but itโ€™s not excessively big like the Alen 75i or IQAir Healthpro plus, both of which take up a ton more space.ย 

TaoTronics TT AP003 Comparrison

The TaoTronics AP003 has an uncomplicated menu system with a child lock button, timer, speed (3 options), auto mode, sleep mode, and on-off button. 

TaoTronics TT AP003 Controls

I donโ€™t mind that there are no app-supported features, as I rarely use the app with air purifiers instead of the onboard buttons. This is especially true with purifiers that include auto-mode, as you just set, forget, and change the filters. One standout app would be that from Dyson, such as the one they include with their air purifier/fan combos, but most others are usually poorly designed with little usefulness for day-to-day use. 

For those looking to build a โ€œsmart homeโ€ you might prefer another unit, but for the rest of us, the TaoTronics AP-033 is simple enough to get going without the need to Google anything or *gasp* read the manual.

High performance filters for a low price

The filters in the TaoTronics AP003 are of excellent quality despite the low price tag.

TaoTronics TT AP003 Filters copy

Both the HEPA filter and activated charcoal filter in the AP-003 are of good quality. You will often find cheaper impregnated carbon filters such as those used in the Winix 5300-2, which still help to remove odors but are not anywhere near as effective as those that use actual charcoal pellets that you use on this unit.

Whilst odors might not be your primary concern for keeping your air clean, the addition of activated charcoal doesnโ€™t have any negative effects on performance, and you will be surprised at the amount of odor-causing chemicals in your home. 

TaoTronics TT AP003 Unit HEPA

The actual size of the filters still constrains mechanical filter technology, so itโ€™s good to see such a large amount of space dedicated to the filter with this unit. Adding the pre-filter is a good way to keep large particles from damaging the HEPA filter. Still, the main job of filtering the air is done using the H13 HEPA โ€” the grade of HEPA recommended for medical uses.

In reality, all HEPA-grade filters can filter very small particles, and as we saw with the Smart Health S, even a lower-grade filter such as H11 can still perform very well in reducing PM2.5 particles in the air.

But itโ€™s generally preferable to see a higher-grade HEPA filter if you have the right powered fan to push air through the filter, so weโ€™re thrilled with including H13 in such a low-priced unit.

TaoTronics TT AP003 Replace Filter

The TaoTronics team did an excellent job of making new users aware that they must remove the plastic bag from the filters before usage. They use a big yellow sticker visible when you remove the air purifier from the box. You will be amazed at how many people still forget to remove the plastic, so be sure to do that before you switch on your unit, as it otherwise might worsen the air.

Taotronics AP003 Filter label

When the time comes to change the filter in your TaoTronics TT-AP003, you will be pleased to find out that it’s quite a simple task that won’t take a lot of time and won’t require you to read a manual to perform:

The TaoTronics AP-003 cleared our test room in 26 minutes

The AP-003 blew us away with its impressive air-cleaning performance, considering this is a budget-friendly air purifier.

Most air purifier reviews are written by journalists who play with the unit and take some pictures but donโ€™t go further. At HouseFresh, our goal is to go a lot deeper into how an air purifier will work and how well it will keep your home air clean. 

Indoor air quality hasnโ€™t always been a top priority for homeowners. Still, since Covid-19, there has been a ton of new research that has shown how important air quality is, both to your respiratory system and even your mental health

We know that most consumers will not be excited about the latest air purifier launch like they are about the latest iPhone. However, we do believe that air quality health will become a major concern for American homeowners, especially considering the rise of wildfires affecting the country. The air purifier industry has a reputation for selling products that promise a lot but fail to deliver, so we think itโ€™s important that we help make life a little easier by thoroughly testing and assessing every unit we recommend. 

All our tests are done in the same room to compare different units, which all have the same job โ€” removing all the pollutants generated by one incense stick in our 705 cubic ft office. We use the indoor sensor from Purpleair to track levels of PM1.0ug/m3, PM2.5ug/m3, and PM10.0ug/m3 over time so we can see how effective the air purifier is at removing these tiny particles from the air. 

The main number we track for our testing is how long the air purifier takes to bring the pollutants down to 0.

On paper, the TaoTronics AP-003 has some big numbers for its price, with a CADR of 384 mยณ/h/226 CFM.  This CADR is even higher than the old flagship air purifier the Alen A350, and even is in the same realm as the Levoit Core 400S (which costs $219.) If the performance test matches this CADR, it’s going to be easy to recommend this unit to those looking for cleaning on a budget.

So, how did it do?

Here are the main pointers:

  • It took 26 minutes to remove all the pollutants from our test room!
  • This was higher than the Mila (35 minutes) and even the BreatheSmart 45i (34 minutes), which was meant to have a slightly higher CADR on paper.
  • It was less than what we saw with the Alen 75i and IQAir Healthpro Plus (24 minutes), but both units are much larger, cost more and use way more electricity.

Letโ€™s put that into perspective by comparing it to the top 10 best-performing units in our tests:

From a performance perspective, the TaoTronics AP-003 has the best air purifier performance for $ spent. 

Noise level results, compared

Another feature that makes the AP-003 stand out is the amount of sound generated. The TT APโ€“003 has a range of 38.4 to 54.2dB, which is fairly low compared with modern air purifiers.

Here is how the TaoTronics AP-003 compares against units with a similar air-cleaning performance:

The TaoTronics AP-003 has a very efficient fan motor, which allows it to clean a lot of air without generating a lot of noise.

The cost to run a TaoTronics AP-003: $90.66 per year

1. Electricity costs = $55.67 per year

One area many consumers of air purifiers forget is the cost of electricity. Air purifiers work best when they are running continuously so if you are not careful inefficient air purifiers can start to cost a lot of money over the long term. 

The good news is that the APโ€“003 manages to clean like a far more powerful unit than the amount of power it used. Using an electric meter, we saw a maximum of 36.5 watts at the top speed and 5.9 watts at the lowest speed.

This power usage is similar to the Levoit Core 300, which cleaned our test room in 40 minutes – the AP-003 is also our top unit for performance to electricity usage.

2. Filter costs = $34.99 per year

Another cost that gets forgotten is the cost of changing filters. Mechanical-based filters must be replaced every 6 months depending on usage, and costs can add up, especially for smaller units that run harder and longer. 

Genuine filters that contain both the HEPA H13 and activated charcoal are $29.99, which is a very fair price considering their size. In comparison, the IQAir HyperHEPA filters are $199 but are replaced less often but still end up costing a lot more in running costs.

If you are open to non-genuine filters, you can find two for $34.99, which is $17 per filter. This aligns with the cheapest filters we have reviewed for the Fร–RNUFTIG from IKEA ($15.99) and Smart Health S from Smart HEPA ($29.99).

Long-term filter costs are very much in line with the very best in the industry.

Rioche TT-AP003 Premium H13 True HEPA Replacement Filter, Compatible with TaoTronics TT-AP003 Air Purifier, 3-in-1 Premium H13 True HEPA Filter, 2-Pack
  • โ–ถ Compatible with *TaoTronics *TT-AP003 Air Purifier. Compare to *VIVOSUN 5-in-1 Air Purifier (*FC-35S1A*) . Package of 2 pack.
  • โ–ถ H13 Grade True HEPA Filter helps remove up to 99.97% of airborne particles as small as 0.3 microns including lint, pet dander&pet fur, hair, dust, pollen, mold spores, dust mites, PM2.5, etc.
  • โ–ถ Activated carbon filter contains premium collumar activated carbon particles, which can efficiently absorb unwanted odors such as smoke, cooking smells pet odors and more.
  • โ–ถ 100% satisfaction. Recommended to replace every 3 to 6 months for optimal performance.

Bottom line: Is the TaoTronics AP003 worth it?

With a CADR of 226 CFM for less than $100, the AP003 offers incredible value for money. 

At the start of this review, I said I had high hopes for this air purifier. 

After testing this unit in our home, Iโ€™m happy to say we have found a Levoit Core 300 killer. It cleans the same level of air as much higher-priced units ($200+) and comes with low sound levels, energy usage, and filter replacement costs. 

I now understand why Dr. Pieter Peach at Clean Air Stars rates this air purifier so highly, as it offers excellent air cleaning performance at a truly affordable price, compared to the latest crop of air purifiers consistently aiming at the high-end of the market.

The only downside is the lack of app support, and you will still want more charcoal if you are looking to deal with serious odors or VOCs but for most people looking to keep their home air clean, you canโ€™t go wrong with the AP-003 from TaoTronics.

TaoTronics TT AP003 Room 1

The main contender to the AP003 is the Levoit Core 300, but the unit from TaoTronics has it beat on both performance and short-term and long-term costs. The only challenge is where to purchase it since the main company has been kicked off Amazon, so you have two options: buying it directly from TaoTronics or hunting for it on eBay. Both of these options worked well up until mid-2024 when the AP003 started to show up as ‘Out of stock’ constantly on taotronics.com, and that seriously affected the number of units you can find on other marketplaces like eBay.

The good news is that the TaoTronics AP003 is built on a very popular ODM design that allows different brands to white-label the exact same device. You can see here the TaoTronics AP003 (right) next to the Lago air purifier (left), and you’ll notice that other than the color, the design is indistinguishable.

Lago Air Purifier VS TaoTronics AP003

BUY FROM EUROPE BUY FROM THE UK

I tested the Lago air purifier (available in the U.S.) and the Midea SmartAir Pure Control (available in Europe). Both units offer the same performance, generate the same noise levels, consume the same amount of electricity, and have the same estimated long-term costs as the TaoTronics AP003.

Let me know if you have any questions about the TaoTronics AP003 in the comments below, and I will get back to you as soon as I read your message. Also, watch out for my video review of this air purifier on our YouTube channel, where I will discuss the alternative models in more detail and share the results of our air cleaning performance test using generic filters available for a fraction of the price.

SOURCES

We calculated yearly costs associated with running the TaoTronics AP-003 for 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.17/kWh as of July 2024.

Medify MA-25 Review

Medify MA 25 Bedroom 1

The team behind Medify understands the issues we all face as air quality worsens year on year. To help combat this air quality crisis, they have created a range of products to foster healthier environments in order to prevent illnesses, allergies, and respiratory conditions for people around the globe. 

From a personal unit specifically designed for use in your car to extra-large units designed for open-plan living spaces or offices, the Medify range sets out to cover all bases where indoor air quality could be affected. As a mid-range product, the Medify MA-25 is designed for use in medium-sized spaces between 250 and 1000 sq. ft., offering an affordable purifier for the average home.  

Each of Medifyโ€™s purifiers comes with a medical grade H13 HEPA filter, capable of capturing 99.9% of pollutants as small as 0.1 micron in size. They are also extremely confident in the build quality of their purifiers, so much so that they offer a lifetime warranty on all their units. 

After reading Medifyโ€™s glowing reviews and being impressed with the Medify MA-40 when we reviewed it last year, we decided to put the MA-25 to the test. As always, we purchased this purifier with our own money, so you can rest assured this review will remain editorially impartial and give you an unbiased account of its performance.ย 

how we test
How we test air purifiers

Read our full testing methodology.

The lowdown on the Medify MA-25

Medify MA 25 Living room logo

PRICE on amazon PRICE on EBAY

No time to read the whole review? Here are the key takeaways we learned while putting this purifier through its paces.ย 

What we really like

Superior H13 HEPA filter comes as standard
Outperformed similarly priced purifiers during our real-world tests
Available in different color options
Comes with a lifetime guarantee

What we think could be better

The filters have a short lifespan and genuine replacements arenโ€™t cheap
The unit is quite loud, even on the lowest setting
There are no smart features or an air quality sensorย 

The specifications

The Medify MA-25 comes with 3-stage filtration and a powerful fan, contributing to a CADR rating of 135. This unit is currently on the market for $157.38, which works out as slightly more expensive than the Blueair Blue Pure 411 at $130 with a CADR of 120 or the Levoit PUR-131 for $151.99, which also has a CADR of 135.ย ย 

Purifier technology:Pre-Filter, H13 True HEPA, Active Carbon Composite 
CADR (CFM / mยณ/h):135 CFM
Recommended room size:500 sq. ft. 
Filter life:3-4 months
Noise level (low โ€“ high):35 – 52dB
Dimensions (in inches / in cm):13.5H x 8W x 8D inches / 34.3H x 20.3W x 20.3D cm
Weight (in pounds / in kg):3.9 kg / 8.6 lbs
Energy consumption:$76.69 per year

Average appearance enhanced by fancy flourishes

On receiving delivery of the purifier, I was surprised to find such a neatly packaged parcel. Thanks to the unit’s compact size and 3-in-1 filter, there were only a couple of components inside the box, which led to a speedy setup. Once everything was unpacked, it was easy to set up the purifier with little need to consult the instruction manual. Simply remove the back panel and slot in the filter, ensuring the pull tab is facing outwards, then plug into the mains and the unit is ready to go. 

Medify MA 25 Close up logo

Itโ€™s fair to describe the Medify MA-25 as an average, run-of-the-mill appliance. Its simple cuboid design doesnโ€™t exactly break the mold, however it does possess a couple of nice features that elevate its appearance. Its glossy touch screen control panel adds a quality flourish, whilst the choice of three colors, coming in black, silver, or white, allows you to choose a unit to best suit your home.

Medify MA 25 Detail front logo

When comparing the unit to a similar purifier made by a rival manufacturer (such as the Levoit Core 400S), you really notice its compact size. Measuring up at 13.5 x 8 x 8 inches, this unit wonโ€™t take up much living space and can even be placed on a table or sideboard without looking out of place.ย 

Thanks to its different color options, the MA-25 also gives you the option to pick a colorway that will best match your home, whereas other manufacturers will often only produce more mundane white goods. 

Levoit Core 400S versus Medify MA 25 logo

3-in-1 air filter with H13 HEPA

When purchasing the MA-25, you receive a 3-in-1 filter consisting of a pre-Filter, H13 HEPA, and activated carbon composite filter. This conveniently packaged filter will protect you from a whole host of household pollutants, all you have to do is unclip the back panel and slot the filter inside. Hereโ€™s a look at just how easy it is:

With the unit set up, you can expect this purifier to tackle a range of pollutants thanks to its advanced H13 HEPA filter. This type of HEPA filter is medical grade, meaning it can capture a higher percentage of smaller particles than its predecessors can. It is certified to remove 99.9% of airborne particles as small as 0.1 microns, including harmful toxins, bacteria, and viruses. 

Medify MA 25 Filter 1 logo

As well as a HEPA filter, you will also find the pre-filter and activated carbon filter for enhanced protection. The mesh pre-filter comes attached to the HEPA filter to capture any larger particles such as hair, fur, or lint on entry. This can be regularly vacuumed to prolong the lifespan of the HEPA filter and keep your purifier operating at its optimum.ย 

The activated carbon filter is a composite layer made up of hundreds of charcoal pellets, providing the third stage of filtration. Thanks to these tightly packed, porous pellets, this filter will absorb VOCs and odors from your home as gaseous pollutants pass through and adhere to the carbon substrate. 

Medify MA 25 Filter 2 logo

Although Medify has clearly opted for high-quality filters to enhance their purifiers’ level of protection, itโ€™s hard to look past their disappointing lifespan. Where most other manufacturers offer filters that last 6 months (with others lasting even longer), Medify states their filters will need to be replaced every 3-4 months or after 2500 hours.

Medify MA 25 Filter change logo

A quick word to the wise for any readers that are planning to buy this purifier is to be sure to remove the plastic wrapping before inserting your filter and switching on the machine, otherwise you wonโ€™t purify much air and might add some unusual aromas to your space, trust us!

Foolproof controls everyone will understand

Medify MA 25 Control panel logo

One of the best things about the MA-25 is its simplicity. By just taking one glance at the glossy touch screen control panel, even those with a serious aversion to technology will be able to operate this unit.ย 

Each of the controls is clearly labeled and illuminated to indicate which setting the purifier is on. Simply cycle through the fan speeds to adjust the power of the unit when required or utilize the 4-stage timer setting so you never have to remember to switch it off again. 

You can also operate the purifier in night mode, setting the purifier to its lowest fan speed along with cutting the LED lights so you can get a good night’s sleep. While the handy child-lock feature will prevent wandering hands from playing with your new toy. 

Although there is no doubting this is an easy purifier to get to grips with, some users may be left pining for more advanced features that are increasingly being found at this price point. Perhaps developing a compatible app for remote use or an air quality sensor for detailed feedback would take this purifier to the next level.ย 

The Medify-25 cleared our test room in 45 minutesย 

In order to see how the Medify MA-25 performed in the real world, we took the unit to our home office/testing lab to put it through its paces.In the interest of conducting a fair and controlled test, this is the same space we use for each of the purifiers we test, which measures up at 705 cubic feet, around the size of a medium-sized bedroom. We also use the same method for creating pollutant particles, by burning incense sticks and measuring the amount of PM1.0, PM2.5, and PM10.0 created by using our PurpleAir indoor air sensor.

With the stage set and room filled with an abundance of incense smoke, we fired up the Medify MA-25 to see how well it performs in our real-world tests. At the time of switching on the unit, we recorded the particulate matter levels in the room to be: 

PM1.0: 376.99ug/m3PM2.5: 646.06ug/m3PM10.0: 709.79ug/m3

Within 43 minutes, the room was cleared completely of all particulate matter, showing this is a great option for eradicating harmful pollutants in well under an hour. 

To put this into context, the MA-25 outperformed two of its close competitors from within a similar price range, the Levoit PUR-131 and the Blueair Blue Pure 411, whilst giving other top-performing units a run for their money too. 

PurifierTime CADRPrice
Levoit PUR-13160 mins135$151.99
Blueair Blue Pure 41168 mins120$130.00
Levoit Core 30040 mins145$99.99
Levoit Core 400S33 mins260$236.94

During our tests, we also recorded the noise levels produced when cycling through its various fan speeds. With volumes ranging between 35 and 52dB this certainly isnโ€™t the quietest purifier weโ€™ve tested, but to hear what that sounds like for yourself, check out our sound guide below.

The cost to run a Medify MA-25: $226.69 per year

1. Electricity costs

With energy prices rising around the world, affecting the day-to-day cost of living, itโ€™s more important than ever to know how much an appliance will cost you in the long run. With this in mind, we use our energy use calculator to estimate what you might expect to pay if using the Medify MA-25.

Whilst testing this purifier, we measured how much electricity the unit used when running on its highest speed setting. We found that it draws just 35.3 watts of power, making this unit pretty energy efficient. This would equate to $76.69 per year, if left to run 24/7 on the highest speed, which isnโ€™t bad at all for a worst-case scenario cost. 

2. Filter costs

Similarly to energy costs, you need to factor in replacement filter costs before committing to buying an air purifier. For HEPA and carbon filters to work effectively and keep your unit running at its best, they need to be periodically replaced once they become saturated with pollutant particles. 

Medify states that their filters will need to be replaced every 3-4 months. This is a relatively short lifespan, especially when you consider a genuine filter replacement will set you back $50. When comparing this cost to those of Winix or Levoit you realize this is indeed a high price to pay, with competitors’ purifiers lasting 6 months and costing around $30-40. 

Medify MA-25 Genuine Replacement Filter Set for Allergens, Smoke, Wildfires, Dust, Odors, Pollen, Pet Dander | 3 in 1 with Pre-filter, HEPA H13 and Activated Carbon | Removal to 0.1 Microns | 1-Pack
  • GENUINE MEDIFY MA-25 FILTERS ONLY: Ensure optimal performance and longevity of your air purifier by using authentic Medify MA-25 replacement filters (ASIN: B084Q965BF). Non-genuine filters risk damaging your machine and compromised air quality.
  • EFFORTLESS FILTER REPLACEMENT: Our user-friendly design ensures a hassle-free filter change. Keep every room in your home, school, or office filled with fresh, irritant-free air. Regularly updated filters effectively neutralize lingering odors.
  • TRUE HEPA H13 FILTRATION: Medify Airโ€™s HEPA filter material tested to remove 99.9% of particles from O.3 to 0.1 ยตm by Intertek Laboratories. Breathe easier with effective removal of dust, pollen, allergens, smog, smoke, wildfire smoke, odors, pet dander, and more.
  • 3-STAGE PURIFICATION PROCESS: The MA-25 boasts a three-layer filtration systemโ€”pre-filter for large particles, True HEPA H13 for superfine contaminants, and activated carbon for odor removal. Ideal for pet owners, allergy sufferers, and smokers.
  • EXTENDED FILTER LIFE & COST-EFFICIENCY: Our long-lasting filter set delivers up to 2,500 hours or 3-4 months of continuous, high-quality air purification. With fewer filter changes needed, enjoy cost savings and a healthier, cleaner home environment.

Itโ€™s worth noting that alternative filters that are compatible with the MA-25 are available on Amazon for a much more affordable price. However, you may wish to think carefully before purchasing these as Medifyโ€™s lifetime warranty is only applicable if genuine filters have been used. 

Sale
25 Replacement Filter for 25 Air Purifier S1/W1/B1, 3-in-1 H13 True HEPA Activated Carbon Filter
  • 25 replacement filters exactly designed for MA Series 25 S1/W1/B1 models air purifier .The package includes 2 filters, and it's recommended to replace the filters every 3-4 months on both sides at the same time.
  • 25 replacement flters are made of 3-in-1 filtration systems including Nylon Pre-Filter, HEPA Filter, and Activated Carbon Filter.
  • The 25 HEPA filter are capable of attaching 99.9% of airborne particles as small as 0.3 microns, and the carbon filter helps you solve the problem of unpleasant odors and gases.
  • Package includes 2 filters. Fully meet your needs for the replacement of 25 filter, with premium materials and advanced technology, ideal solution for homes with pets, smokers, open layout kitchens.
  • We value customer service and satisfaction. If you have any problems with the filter fitting your air purifier, please contact us through our Amazon home page. Filter made of FSC-Certified paper

Bottom line

Medify have certainly got their priorities in order, creating a mid-range purifier that comes with superior H13 HEPA filters and build quality backed up by a lifetime guarantee. Giving consumers peace of mind they can breathe clean and healthy air for years to come. 

Medify MA 25 Baby nursery room logo

We found that the MA-25 is, without doubt, a quality purifier that will work well in medium-sized spaces. This was proven during our real-world tests where all traces of polluting particles were eradicated in 43 minutes, beating many of the other units within a similar price range, such as the Levoit PUR-131 and Blueair Blue Pure 411.

That being said, there is still room for improvement. Despite having quality filters, their lifespan doesnโ€™t compare to rival manufacturers and replacements donโ€™t come cheap unless you source alternatives from Amazon. Also, while the simplicity of this unit makes life easier, the lack of advanced features does make it feel more basic.ย 

rish to help us show clearly how long it took a specific purifier to remove all pollutants from the air.

SOURCES

We calculated the monthly energy consumption costs with the help of our air purifier electricity usage calculator. We calculated daily and yearly costs associated with running an air purifier for 24 hours a day in California. You can customize the result by air purifier wattage and by state.ย 

At HouseFresh, we have been reviewing air quality products since 2010. In all these years, we learned not to rely on manufacturers’ claims and the ever-so-glowing marketing materials. That is why we buy products with our own money, so we can write unbiased reviews after we’ve had enough time to evaluate air quality products in our home lab. Every unit we recommend has been thoroughly tested to assess its performance, energy consumption, and noise levels emitted in real-life environments. If you have any questions about our testing process for different types of air quality products, just drop us an email at danny@housefresh.com.

Winix 5300-2 review

Winix 5300 2 Hallway logo

Starting their journey in 1973, this South Korean company made it their mission to โ€œdeliver perfect products which are superior in Innovation, Performance, and Styleโ€. By making sure each of their products meets the high standards of testing companies like AHAM and Energy Star, itโ€™s no wonder theyโ€™re a major player in the market.

Alongside HEPA and Activated Carbon filters, they use their signature technology, PlasmaWaveยฎ. PlasmaWaveยฎ claims to reduce bacteria and viruses from the air in your home without producing harmful ozone

As a disclaimer, weโ€™re still not 100% convinced with ionization technology, so it will be interesting to see if PlasmaWaveยฎ persuades us otherwise.

As with all our product reviews, we donโ€™t just do a little reading and look at pictures, we actually BUY the thing and conduct our own performance tests. This lets us play around with each product to tell you exactly what itโ€™s like in a real-world setting, highlighting both pros and cons. Weโ€™re not scared of delivering the truth. If it sucks, weโ€™ll tell you, trust us.

Here’s how we tested the performance of the Winix 5300-2:

how we test
How we test air purifiers

Read our full testing methodology.

The lowdown on the Winix 5300-2

Danny Ashton HouseFresh
“The CADR for the 5300-2 may not match other budget units like the Levoit Core 600S but it still held its own in our performance tests. Itโ€˜s easy to operate, has enough smart features to keep up with the market, and looks great in the home.”
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Winix 5300 2 Window logo

buy it on amazon FIND IT ON EBAY read our review

The Winix 5300-2 may be older but isnโ€™t dated. This hard-working air purifier proves that Winix builds efficient units to last, and at a price we can get along with. Here are some of the things we really like about the 5300-2, and some of the things we think could be improved.

What we really like

It looks modern with its matte finish
Controls are easy to navigate and operate
It offers a high CADR rating for the price
It has an air quality smart sensor
It comes with extra replacement carbon filters in the box

What we think could be better

It would be better if it came with loose-fill activated carbon instead of bonded
It is quite loud when running at its top fan speed (60 dB)

The specs

Although Winix can boast a good CADR (Clean Air Delivery Rate), it comes at a cost. When you have a high-efficiency fan, you need to be able to afford the cost of powering it (weโ€™ll get into that further down). The other thing that comes with a big fan is noise. On its highest fan speed, you can expect the 5300-2 to make more noise than other units out there like the SmartAir Blast Mini or Blueairsโ€™ Blue Pure 211+.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):27 minutes
Air purifier technology:Washable Fine Mesh Pre-filter, Activated Carbon Filter, True HEPA Filter, Plasmawave Air Cleaning Technology
Recommended room size (4.8 air changes per hour):360 sq. ft.
Clean air delivery rate (CADR):Dust: 243 CFM
Smoke: 232 CFM
Pollen: 246 CFM
Dimensions (in inches / in cm):15W x 8.2D x 23.6H inches (38.1W x 20.8D x 59.9H cm)
Weight (in pounds / in kg):14.8 lbs (6.7 kg)
Filter life:HEPA filter: every 6 months 
Carbon filter: every 3 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 37.1 dB
Speed 2: 39.6 dB
Speed 3: 43.3 dB
Speed 4: 59.2 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0.41 watts
Speed 1: 4.85 watts
Speed 2: 6.7 watts
Speed 3: 10.47 watts
Speed 4: 51 watts
Estimated running cost (electricity consumption + official filter replacement):$150.99 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.60
Manufacturerโ€™s warranty:2 years
Country of manufacture:South Korea

Slender, modern, matte finish design with user-friendly controls

As soon as you pull the 5300-2 out of the box, you notice how different it looks to other models. Unlike the SpongeBobiness of the Coway Airmega 300 or the flat glossy Alen BreatheSmart 45i, this Winix is slender with a matte gray finish and a black control panel.

Winix 5300 2 No Filter Close Up logo

PRICE on amazon PRICE on EBAY

It has a flat base, so no need to worry about it wobbling over and it stands 23.6 inches tall. Thereโ€™s a nice-looking grill on the front panel and side inlets, so plenty of air can enter the filters. 

The front panel is magnetized rather than having a clip, so you know it wonโ€™t be falling off in the middle of the night. A great safety feature on the 5300-2 is the fact the unit automatically shuts off when you remove the front panel to clean or change the filters. This way thereโ€™s no chance of you trapping your fingers in a moving fan.

We stood the 5300-2 next to the Honeywell HPA300 so we could compare the two units side by side. The HPA300 cleared pollution from our testing room only 1 minute faster than the Winix, but is heavier, more expensive, and uses a lot more energy. 

Winix 5300 2 VS Honeywell HPA300 logo

I donโ€™t know about you, but I personally prefer the look of the Winix in comparison. I think it complements a room more and has a few more features like its smart sensor and air quality indicator light.

The controls on the 5300-2 are easy to navigate, easy to operate, and easy to understand. 

Winix 5300 2 Control Panel logo

buy it on amazon FIND IT ON EBAY read our review

There are five buttons across the top of the unit to turn it on/off, select mode, engage PlasmaWaveยฎ, change fan speed, and set the timer. Each button is responsive and the icons above light up to show what setting the unity is on.

You have four different fan speeds to choose from, press the fan speed button to scroll through the speeds. The timer allows you to select from three countdowns, 1hr, 4hr, and 8hr. Once the countdown hits zero, the unit will automatically shut itself off.

The mode function selects between sleep Mode and auto Mode. Sleep mode sets the fan to its lowest (quietest) speed and dims all the lights on the unit so you can get a good night’s rest without any distractions. 

The auto mode takes over the controls, so you donโ€™t have to change the fan speed. Once engaged, the Smart Sensor measures air quality in the room and adjusts fan speed accordingly.

It also lets you know the quality of your air with its indicator light:

๐Ÿ”ต Blue: Good

๐ŸŸ  Orange: Fair

๐Ÿ”ด Red: Poor

Three-stage filtration, powered by PlasmaWave technology

The activated carbon filter could be improved but the presence of a TrueHEPA filter really helps

Winix 5300 2 HEPA Filter logo 1

When you open the front panel, youโ€™ll first see the pre-filter. This is here to stop any of the larger airborne particles from getting to the HEPA filter, thus removing them from your environment and prolonging the life of your HEPA.

You can unclip and remove the pre-filter, enabling you to clean it when needed. After prolonged use, the pre-filter will get clogged with dust particles. You can wipe the filter down or vacuum it clean.

When you unclip the pre-filter, youโ€™ll reveal the bonded activated carbon filter:

Winix 5300 2 Carbon Filter logo

As you probably know, the activated carbon filter takes care of VOCs (Volatile Organic Compounds) and unwanted odors, removing them from the air. Here, activated carbon is pressed into a sheet so when VOCs try to pass through, they get caught in the carbon through a process called adsorption.

The basic rule for an activated carbon filter is; the more carbon it contains, the more effective it is.

Unfortunately, the 5300-2 doesnโ€™t contain much of this, so itโ€™s less effective than some (like the Coway Airmega 300) at removing VOCs and odors from your home. You should be able to clearly see how flimsy the activated carbon filter it is in the photo below:

Winix 5300 2 Three Stage Filtration System

Once youโ€™ve removed the activated carbon filter, you expose the True HEPA filter:

Winix 5300 2 Carbon HEPA Filter logo

This is the main part of the filtration process. Made from tightly woven fibers, the HEPA catches tiny airborne particles, trapping them so they donโ€™t get released back into your room.

True HEPA filters are designed to remove up to 99.97% of particles down to 0.3 microns in size (thatโ€™s SMALL). These are things like:

  • Pet dander
  • Pollen
  • Mold
  • Smoke
  • Fine dust

Having a HEPA filter is the most efficient way of removing these harmful pollutants from the air in your home. If an air purifier doesnโ€™t contain a HEPA filter, I wouldnโ€™t look twice at it.

Replacing the filter is a pretty simple process on the 5300-2. Itโ€™s as easy as 1, 2, 3.

  1. Remove the front panel and unclip the pre-filter
  2. Pull the tab removing the filter
  3. Slide in the new filter and re-attach the pre-filter and front panel

Here is a video just in case that seems a little complicated.

Tip

Remember, when you purchase this unit new or buy a replacement, the filter will come with plastic packaging. You have to remove this packaging before turning your air purifier on. If you donโ€™t, the filter will be rendered useless and youโ€™ll probably start to smell burning after a while as the plastic erodes. 

What is PlasmaWaveยฎ?

Most brands these days use their signature technology in their air purifiers. This not only sounds fancy, but it shows that they have their own engineers developing technology to make your home cleaner, aka, more trustworthy.

For Winix, itโ€™s PlasmaWaveยฎ.

PlasmaWaveยฎ Technology creates Hydroxyls to reduce bacteria and viruses without producing harmful ozone. Our technology creates a safe & short electrical discharge to create dual polarity ions (positive and negative) and disperses them into the air.
โ€” Winix team

This basically means the unit has an ionizer. An ionizer sends out electrically charged particles into the air, which attract airborne pollutants and pull them to the ground. Pretty much like when clothes stick together fresh out of the dryer from static.

Iโ€™ve never been too keen on ionizers for two reasons:

  1. We tested one and it didnโ€™t seem to make any difference to the pollution in my room.
  2. The ions pull pollutants to the ground, they donโ€™t actually remove them from the environment.

Because of this, I wonโ€™t be using the PlasmaWaveยฎ technology in my home.

The Winix 5300-2 cleared our test room in 27 minutes

That is 7 minutes faster than the Alen Flex and the Mila, but 8 minutes slower than the Winix 5500-2

Winix 5300 2 Testing logo

buy it on amazon FIND IT ON EBAY read our review

So, how does the 5300-2 actually perform? With every air purifier we review, we put it in our performance testing room where we see how well it does at removing airborne pollutants. We test each product in the same room under the same conditions in order to get a fair result that we can compare against other units.

Because we want to give you real-world results, we donโ€™t test our air purifiers in a lab or manufactured environment. We use an actual room in our actual home.

To get these results, we placed the 5300-2 in our 705 cubic ft performance room and contaminated the air using incense. We then turned the unit onto its highest fan speed and waited until the room was clear of pollution.

We monitored each stage of our test using our indoor sensor from Purpleair to provide us updates on PM1.0ug/m3, PM2.5ug/m3, and PM10.0 ug/m3.

Here are the results:

As you can see from the graph, the Winix managed to clear the room of contaminants in 27 minutes which, for the size of the unit, was a good performance.

Air cleaning performance compared

When compared to other units, it was only 1 minute more than the powerhouse which is Honeywellโ€™s HPA300, and Cowayโ€™s Airmega 300. Quite surprising as both of those units have a higher CADR.

Noise ;evels test results

As I mentioned before, because of its powerful fan, the 5300-2 can get quite loud when running on its higher fan speeds. At its lowest speed, it clocks in at 27 dB, but on high, it can reach 60+ dB. This is loud enough to disturb your movie or gaming. 

Fortunately though, as you can see from our performance tests, you should never need to have it at full speed for long periods of time. Hereโ€™s a video to demonstrate the sound levels.

The cost to run a Winix 5300-2 : $150.99 per year

When purchasing an air purifier, most of us will factor in how much a unit costs before buying. Unfortunately, thatโ€™s not the only expense you need to consider. 

1. Electricity costs = $66.23

With rising energy costs worldwide, youโ€™ll need to consider how much an air purifier costs to run โ€” especially as it is recommended that you have it on for eight hours every day.

We clocked the 5300-2 at using 63.4 watts on full power, which isnโ€™t the most efficient weโ€™ve tested, but it also is not the worst. It looks good when compared to the Honeywellโ€™s HPA300, as it uses 87 watts at full speed. But put it next to the Levoit Core 600S, which cleared our performance room 12 minutes faster using 47 watts. It doesnโ€™t look so great.

We worked out that if you had the 5300-2 on full fan speed 24 hrs a day, it would cost $66.23 per year, according to data from the Department of Energyโ€™s appliance energy calculator.

2. Filter costs = $84.76

Air purifier filters donโ€™t last forever. Periodically, you must replace each filter so your unit can run efficiently. If you donโ€™t, youโ€™re running a useless fan wasting energy.

Over time, HEPA and activated carbon filters become full of all the contaminants theyโ€™ve pulled out of the air. As they get fuller, they become less effective; therefore, they must be swapped out for new ones, which costs money.

As the activated carbon filters donโ€™t last as long as the HEPA filters, Winix has included some replacements in the box. Nice touch, Winix; thank you!

When itโ€™s time for a full replacement, the pack comes with one HEPA filter and four activated carbon filters, so you only have to make one purchase each time. This is well thought out and much appreciated, as some brands like to leave you to purchase separate filters.

Unfortunately, the filters cost around $80, so replacing them every 6 months can get a little expensive.

Genuine Winix 115115 Replacement Filter A for C535, 5300-2, P300, 5300, White/Black
115115 Size 21 Replacement Filter A for Winix PlasmaWave Air Purifier 5300 6300 5300-2 6300-2 P300 C535, Compatible with Fellowes AeraMax 290 300 DX95, 2 Pack HEPA Filters + 8 Pack Carbon Filters
Technology
True HEPA Filter + 4 Activated Carbon Filters
2 True HEPA Filters + 8 Activated Carbon Filters
More information
Price
$26.99
Price not available
Genuine Winix 115115 Replacement Filter A for C535, 5300-2, P300, 5300, White/Black
Technology
True HEPA Filter + 4 Activated Carbon Filters
More information
Price
$26.99
115115 Size 21 Replacement Filter A for Winix PlasmaWave Air Purifier 5300 6300 5300-2 6300-2 P300 C535, Compatible with Fellowes AeraMax 290 300 DX95, 2 Pack HEPA Filters + 8 Pack Carbon Filters
Technology
2 True HEPA Filters + 8 Activated Carbon Filters
More information
Price
Price not available

Bottom line

A solid option, although you might prefer to go for the Winix 5500-2 which looks nearly identical but offers better air cleaning performance and a sturdier activated carbon filter

Although Winix has released an updated model, that doesnโ€™t mean the Winix 5300-2 is out of the race completely. This air purifier has enough features to keep you happy, and its design would look great in your home.

Winix 5300 2 Hallway logo

buy it on amazon FIND IT ON EBAY read our review

That said, the Winix 5300-2 is let down by the noise its fan can generate and that fact they use an ionizer as their signature technology. The activated carbon filter isnโ€™t the best by far and the matt control panel is susceptible to fingerprint marks.

You canโ€™t deny its performance, though. The 5300-2 sits comfortably alongside the โ€œDoctors’ favoriteโ€ Honeywellโ€™s HPA300 and Cowayโ€™s Airmega 300, making this unit a strong contender in an ever-growing market.

SOURCES

In order to calculate the monthly energy consumption costs, we used the appliance energy calculator from the Department of Energy. We calculated the daily and yearly costs of running an air purifier for 24 hours a day for 365 days. We ran this calculation utilizing the U.S. average utility rate of $0.12/kWh as of February 14th, 2024.

Honeywell HPA300 review

Honeywell HPA300 Editorial logo

Thereโ€™s no doubt about it: Honeywell is a household name. But theyโ€™re so much more than an air purifier manufacturer. With heavy ties in industry, aerospace, chemicals, and healthcare, itโ€™s no wonder their air quality products have earned their slogan of โ€œThe Doctorโ€™s Choice.โ€

With quite a few models in the range, Honeywell has created a unit to suit most room sizes. In the HPA series, it starts with the small 060, right up to the larger, more tech-heavy 5300.

Today, weโ€™re looking at the HPA300, which falls into the middle section of the series and is a good gauge of what the range has to offer.

As with all our hands-on reviews here at HouseFresh, we bought this unit with our own money, so we have no biases to give a better review than we would under normal circumstances.

Opposite to most reviews, you will read when searching for info about the Honeywell HPA300, we have actually tested this air purifier and used it in our own home for over six months BEFORE telling you what we think of it.

We tested the Honeywell HPA300 in three stages, as we do with all the air purifiers we review:

how we test
How we test air purifiers

Read our full testing methodology.

All this to say that this review is not a simple copy-paste of the manufacturer’s marketing materials peppered with photos we took without even turning on the unit once.

This is a reflection of our experience testing the Honeywell HPA300 and also using it daily in our own home.

The lowdown on the Honeywell HPA300


danny

“The Honeywell HPA300 is a no-thrills, hard-working air purifier for those on a budget.”

โ€” Danny Ashton, Founder & Senior Writer

Honeywell HPA300 Living Room 2

PRICE on amazon PRICE on EBAY

Youโ€™re busy; we get it. Hereโ€™s a Too Long Didnโ€™t Read low down showing you the main pros and cons I found when testing the HPA300.

What we really like

It has a high CADR rating for its budget price.
Ready to use straight out of the box.
It doesnโ€™t take up much floor space.
Replacement filters are easy to come by.
It has straightforward controls.

What we think could be better

It can get quite loud at higher fan speeds.
You have to replace the pre-filter quite often.
It doesnโ€™t come with a remote control or app.

Itโ€™s amazing to see a CADR this high in an air purifier that costs under $300. This can be attributed to Honeywell’s high-powered fan. The HPA300 is a workhorse, clearing medium-sized rooms fast and effectively. The downside to having a powerful fan is that it uses a lot of energy to run and usually, this comes hand-in-hand with higher energy bills.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):20 minutes
Air purifier technology:Activated Carbon pre-filter and True HEPA filter
Recommended room size (4.8 air changes per hour):465 sq. ft.
Clean air delivery rate (CADR):Dust: 320 CFM
Smoke: 300 CFM
Pollen: 300 CFM
Dimensions (in inches / in cm):20.8L x 10.83W x 22.38H inches (52.8L x 27.5W x 56.8H cm)
Weight (in pounds / in kg):17 lbs (7.7 kg)
Filter life:HEPA every 12 months, Pre-filters every 3 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 43.6 dB
Speed 2: 48.8 dB 
Speed 3: 53.9 dB
Speed 4: 59.5 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0 watts
Speed 1: 28.35 watts
Speed 2: 42.92 watts
Speed 3: 55.8 watts
Speed 4: 76.2 watts
Estimated running cost (electricity consumption + official filter replacement):$205.22 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.84
Manufacturerโ€™s warranty:5 years
Country of manufacture:China

Matt, black and discrete

If there were an international beauty pageant for air purifiers, the HPA300 wouldnโ€™t be on the podium.

Honeywell HPA300 Close Up

If you compare it to Rabbit Airโ€™s MinusA2, which is focused on style, youโ€™ll see that Honeywell makes units that look like air purifiers and act like air purifiers.

It has a simple, flat base with no wheels, which isnโ€™t an issue for maneuverability as it weighs 17 lbs and has an inset handle on each side. My mom mentioned she liked this style better, as it doesnโ€™t make a mark on her new carpet.

The metallic touch control panel is easy to operate with minimal buttons. You do have to press them hard, so if at first you donโ€™t succeedโ€ฆ

I did find an issue with the front panel of the HPA300. It is held on by clicking it into place, and if it isnโ€™t clicked in properly, it tends to fall off, especially when you move the unit from room to room.

Honeywell HPA300 Issue NO LOGO

To compare the design with another unit, we sat the HPA300 next to the Winix 5300-2 as theyโ€™re both similar in size and had a similar performance in our testing room. I personally prefer the design of the Winix, and it has the smart features that are missed on the HPA300.

Winix 5300 2 VS Honeywell HPA300 logo

Why have one filter when you can have three?

When you remove the front panel of the HPA300, you have access to the three mini filters. Each uses a two-stage process:

  • Stage 1 – Activated carbon pre-filter: Instead of having a pre-filter and a carbon filter, they are combined in one handy sheet. It captures larger particles in the air, such as dust and hair, whilst reducing odors and VOCs.
  • Stage 2 – HEPA filter: Instead of one large HEPA filter, theyโ€™ve opted for three smaller ones that fit snugly behind the pre-filter. The bonus of using smaller filters is that if one gets dirty, you only need to replace one instead of all three.

Usually, the third layer of a filter is the activated carbon layer, which is either packed full of loose activated carbon or bonded into a sheet. In the HPA300, you get that thin layer of bonded activated carbon to adsorb odors and other VOCs in the home.

Honeywell HPA300 Filters Shot

I can see the logic behind why Honeywell has gone for this approach, but the carbon filter feels a bit flimsy. Compare it to the Coway Airmega 300, and you can see the difference. With Coway, you can see the bits of carbon in the filter. 

Honeywell HPA300 Activated Carbon Filter

I prefer the loose-fill carbon filters as thereโ€™s more surface area for VOCs to adsorb, so this sheet is a little disappointing.

Honeywell advises changing the HEPA filters every 12 months and the pre-filters every three months. Luckily, you can buy both types in one pack to last you 12 months or purchase them both separately if needs be.

Honeywell HPA300 Unit Without FIlters 1

Replacing the filters is a simple process that takes around 30 seconds. Hereโ€™s the process and a video to show you how. 

  • Step 1: Unplug the unit
  • Step 2: Remove the front panel
  • Step 3: Remove the activated carbon sheet
  • Step 4: Pull the red tabs on the top of each HEPA filter to remove
  • Step 5: Insert your new HEPA filters and reverse the steps

Tip

Itโ€™s important that you remember to remove any plastic packaging from the filters before installing them into the unit. If you donโ€™t, the filters simply wonโ€™t be able to work, and youโ€™ll probably start to smell plastic burning over time.

Simple operation

The Honeywell HPA300 is for those who want to turn it on and let it be.

Honeywell HPA300 Control Panel

With no app, air quality indicator, ionizer, or remote to deal with, the control panel is easy to navigate, responsive and very straightforward.

There are four speeds to choose from germ, generally clean, allergen, and a separate button for turbo. Thereโ€™s no need to get confused over the names; they basically mean low, medium, and high.

You have a timer to set for 2 hours, 4 hours and 8 hours for extra ease, and indicators will light up when itโ€™s time to change the filters.

Lastly, a dimmer button dims the blue lights or turns them off completely, making it handy for use in the bedroom whilst sleeping or if you donโ€™t want to draw any extra attention to the unit.

The Honeywell HPA300 cleared our test room in 20 minutes 

Itโ€™s all good discussing design and functions, but how does this air purifier perform?

Honeywell HPA300 Testing

We tested the HPA300 to measure its effectiveness at removing airborne contaminants from our testing room and compare it with other units weโ€™ve tested in the same conditions.

As with all our reviews, we test these units in real-world situations. You donโ€™t live in a sterile laboratory environment, and neither do we, so we test them in our home.

We placed the HPA300 inside our 728 cubic ft test room and recorded how fast it cleared the air from thick incense smoke pollution when running on turbo mode. We used our indoor sensor from Purpleair to update us on PM1.0ug/m3, PM2.5ug/m3, and PM10.0ug/m3 levels throughout the test.

Hereโ€™s what we found:

As you can see from the data collected, the HPA300 clears our room of contaminants in 20 impressive minutes. Thatโ€™s due to the powerful fan I keep mentioning. It may be loud, and it may use a lot of power, but this is the result you get because of that.

Update December 2023:

We received a comment asking us to see how well the Honeywell HPA300 cleaned the air when running on lower fan speeds, so we tested performance at Speed 2 and Speed 1.

At Speed 1 (Germ), which is less than 45 dbA, it is 43.6 dBA and achieved PM1 Zero in 50 minutes.

At Speed 2 (General clean), which is under 50 dBA, it is 48.8 dBA and achieved PM1 zero in 34 minutes.

Air cleaning performance, compared

When we compare it to other units on the market with similar CADR ratings, the HPA300 was only two minutes away if the fastest air purifier we have tested so far: the Smart Air Blast Mini. Besides, it cleared our room at the same time as Levoit’s EverestAir and the AirDoctor 3000, two units that cost nearly double the price of this Honeywell.

Noise levels test results, compared

Unfortunately, noise is where the HPA300 lets itself down.  The big fan, which allows it to have high CADR levels in this unit, means you must compromise on noise. Thereโ€™s no โ€˜silentโ€™ or โ€˜sleepโ€™ mode, which is an asset to Alenโ€™s 75i and 45i units, only a turbo mode which makes this unit the focus in any room.

SPEEDSOUND LEVEL (at 3 ft. away)
Speed 4 [Top Speed]59.5 dBA
Speed 353.9 dBA
Speed 248.8 dBA
Speed 143.6 dBA

Hear for yourself with our noise video.

The cost to run the Honeywell HPA300: $205.22 per year

1. Electricity costs = $116.23 per year

When investing in an air purifier, itโ€™s not only the cost of the unit you need to think about. Air purifiers use electricity to operate, so you will need to consider the cost of running, especially if it is recommended to run the unit for at least 8 hours per day.

As energy costs keep rising, itโ€™s beneficial to have an air purifier thatโ€™s as energy-efficient as possible.

On Turbo mode, the HPA300 draws 76 watts of power, which is quite substantial compared to other units. We clocked the Winix 5300-2 at 51 watts on full and the Levoit Core 600S (one of our favorites) at almost 30 watts less at 49 watts. 

We calculated that if you ran the HPA300 at full fan speed for 24 hours a day, every day, it would cost $116.23 per year. We got this figure using the average energy prices as reported by the U.S. Bureau of Labor Statistics.

Looking at the performance test results, you shouldnโ€™t ever need to run this unit for that long on turbo every day; that would be overkill. We use these perimeters to show the highest it could cost you.

2. Filter costs = $88.99 per year

Electricity isnโ€™t the only extra expense when operating an air purifier in your home. You will also need to replace the filters in your unit periodically.

HEPA filters were developed during WWII and have been used to filter airborne contaminants. This technology has proved itself as the most effective way to remove micropollutants from the air by trapping them in a maze of intertwined fibers. The thing is, HEPA filters become less effective over time as they start to fill up with these trapped contaminants. Depending on the filter, it will become full and ineffective at some point, so itโ€™s paramount you change the filters at this time.

As the HPA300 uses three small HEPA filters instead of one large one, Honeywell has put plenty of thought into replacement filters. They offer packs of 1, 2, or 3 replacements, so if one filter is full but the others are okay, you donโ€™t need to fork out the extras. 

A pack of three genuine Honeywell HEPA filters will set you back around $78, but that doesnโ€™t include a replacement activated carbon sheet, so we recommend purchasing the all-in-one box with three HEPA filters and four pre-cut activated carbon sheets for $88.99.

Honeywell HEPA Air Purifier Filter Replacement Kit for HPA300, HPA3300, HPA5300, HPA8350 series Air Purifiers, Value Combo Pack Includes 3 HEPA R & 4 A Carbon Pre-Cut Pre-Filters
Durabasics 3 HEPA Filter Set for HPA300 Honeywell Air Purifier Filters & Honeywell HPA300 - Compatible with Air Purifier Replacement HPA 300 - Replacements for Filter R & HPA 300 Filter
Technology
3 HEPA Replacement Filters and 4 Activated Carbon Pre-Filters
3 HEPA Replacement Filters and 4 Activated Carbon Pre-Filters
More information
Price
$89.95
$41.99
Honeywell HEPA Air Purifier Filter Replacement Kit for HPA300, HPA3300, HPA5300, HPA8350 series Air Purifiers, Value Combo Pack Includes 3 HEPA R & 4 A Carbon Pre-Cut Pre-Filters
Technology
3 HEPA Replacement Filters and 4 Activated Carbon Pre-Filters
More information
Price
$89.95
Durabasics 3 HEPA Filter Set for HPA300 Honeywell Air Purifier Filters & Honeywell HPA300 - Compatible with Air Purifier Replacement HPA 300 - Replacements for Filter R & HPA 300 Filter
Technology
3 HEPA Replacement Filters and 4 Activated Carbon Pre-Filters
More information
Price
$41.99

Bottom line: Is the Honeywell HPA300 worth it?

Overall, Honeywell has produced another sturdy air purifier covering all room sizes in the HPA range.

Unfortunately, thatโ€™s all it is, another sturdy air purifier. With none of the cool features weโ€™ve become accustomed to, the HPA300 does what itโ€™s meant to do, but in the least exciting way possible. Its noise levels let it down, and it wouldnโ€™t be advised to have it running when watching a scary movie.

Honeywell HPA300 Editorial logo

Donโ€™t get me wrong; this unit works hard. It boasts high CADRs and passes the test when it comes to eliminating airborne pollutants. Itโ€™s easy to use, replacing filters is no trouble and itโ€™s simple to move from room to room. Itโ€™s just a bitโ€ฆ meh.

If youโ€™re looking for a unit that will fit into your home, work hard and has a few more features, I would recommend going for the Winix 5300-2 or the Levoit Core 600S over the HPA300. And if your budget is tight, then you can’t go wrong with the Core 300S or the TaoTronics AP003.

SOURCES

We calculated yearly costs associated with running the Honeywell HPA300 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

Levoit LV-H133 review

Levoit LV H133 Living room logo

If youโ€™ve already started researching air purifiers, youโ€™ve most likely come across the brand name Levoit before. They are one of the major players in household products and their range of air cleaners is more popular than most.

Currently, they have their Core, LV-H, LV-PUR, Vista, and Vital ranges with the Core having the biggest choice of units. Weโ€™ve already reviewed the 600S, 400S, 300, and 200S from the Core range so we wanted to try something different Levoit has to offer.

One plus to buying an air purifier from Levoit is the signature technology they come with. As with most of their new products, the LV-H133 comes with a 360-degree HEPASmart filter, VortexAirโ„ข technology, and a centrifugal fan wheel.

On your journey to buying new products online, youโ€™ll no doubt come across heaps of โ€˜Best-ofโ€™ articles from big media sites telling you what to buy when the writer hasnโ€™t ever seen or touched it. At HouseFresh, we cut the bulls**t. 

We buy every air purifier we test with our own money, so we can test it ourselves and be free to share our data with no strings attached to any manufacturer.

how we test
How we test air purifiers

Read our full testing methodology.

The lowdown on the Levoit LV-H133

danny

โ€œIf you don’t mind the size and aren’t too concerned about the lack of smartphone connectivity, this is a good-performing unit with a great design.

However, if you’re not too concerned about aesthetics, then the Core 600S is a superior model with its 410 CFM CADR, 635 sq. ft. room capacity, cheaper replacement filters, app connectivity… All for an extra $50 โ€” and it’s 7 lbs lighter, too.โ€

โ€” Danny Ashton, Founder & Senior Writer

Levoit LV H133 Living room logo

PRICE on amazon PRICE on LEVOIT

The LV-H133 is a great addition to the Levoit range. Itโ€™s pretty stylish (especially in black), has enough smart features to keep it current, and performs amazingly in medium to large size rooms. And all at under $250*, thatโ€™s a feat not many purifier brands can boast.

What we really like

It has an LED air quality monitor color wheel.
It offers solid air cleaning speed โ€” it cleaned our test room as fast as the IQAir HealthPro Plus and the Coway Airmega AP-1512hh Mighty.
The touchscreen controls are easy to operate.
Replacing the filter is a simple process.
The numeric display shows how long the timer is set for.

What we think could be better

It would be better if it had handles on each side for maneuverability.
I wish the numeric display showed PM levels.
Other units at a similar price range performed better in our testing, like the Winix 5500-2.

Levoit excels at producing high-performing air purifiers at budget prices without sacrificing quality. The LV-H133 retails at $249.99, which is not bad compared to other units with similar CADR, like the Alen BreatheSmart 45i (costing over $430) and the Coway Airmega 300 ($330).

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):25 minutes
Air purifier technology:3-Stage Filtration (Pre-filter for large particles, main filter for airborne particles, high-efficiency activated carbon filter for odors and gasses)
Recommended room size (4.8 air changes per hour):360 sq. ft.
Clean air delivery rate (CADR):Dust: 274 CFM
Smoke: 284 CFM
Pollen: 287 CFM
Dimensions (in inches / in cm):12.5L x 12.5W x 23.6H in (31.8 x 31.8 x 60 cm)
Weight (in pounds / in kg):6.6 lbs (3kg)
Filter life:6 months
Noise level in decibels (as reported by manufacturer):Speed 1: 28 dB
Speed 2: 36 dB
Speed 3: 46 dB
Speed 4: 54 dB
Electricity consumption in watts (as reported by manufacturer):Lowest fan speed: 0.8 watts
Highest fan speed: 28.1 watts
Estimated running cost (electricity consumption + official filter replacement):$155.43 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.91
Manufacturerโ€™s warranty:2 years
Country of manufacture:China

The curvy cleaning tower and top-loaded touchscreen 

Sleeker design than other Levoit units, but it is a large device

Levoit LV H133 Close up front logojpg 2

For the LV-H133, Levoit has opted for a sleeker design over the cylindrical Core 400S or the more traditional boxy stylings of the 600S. It has curves in all the right places, making it quite pleasing to the eye.

If youโ€™re like me, you donโ€™t want your air purifier to be the main focus of a room. You donโ€™t want to hide it away, but you donโ€™t need it taking up space in the middle of the room. This is where the LV-H133 ticks all the boxes for me, as it sits comfortably in a corner without taking up too much space.

The control panel sits comfortably on top of the unit, sunken into the middle of the outlet, making it easy to access regardless where it sits in your room.

Levoit LV H133 Control panel logo

The round control panel contains 6 touch buttons, 3 icons to indicate fan speed, a filter check light, a color-changing air quality monitor ring, and a numerical display for the timer function. Each button is quite sensitive and doesnโ€™t need to be pushed hard to engage. Theyโ€™re all labeled and well-spaced, so you wonโ€™t accidentally hit the wrong one.

Hereโ€™s what each one does:

  • On/Off – Turns the air purifier on/off
  • Timer – Set the timer for anywhere between 1-12 hours to match your schedule
  • Display lock – Press and hold for 3 seconds to lock/unlock the display
  • Display lights on/off – Turns all display lights on/off for night time or movie time
  • Auto function – Adjusts fan speed automatically based on air quality
  • Fan speed – Select from 3 speeds; Low, Medium, and High
  • Sleep mode – Switches fan speed to Low and turns off display lights

The color-changing ring gives you a clear indication of the quality of the air in your room in real-time. You can adjust the fan speed yourself or use the unit’s Auto Mode where the purifier changes fan speed automatically in accordance with the air quality.

Indicator ColorAir QualityAuto Mode Fan Speed
BlueVery GoodSleep Mode
GreenGoodLow
OrangeModerateMedium
RedVery BadHigh

You can see here how the Levoit LV-H133 compares to the Coway Airmega 300 in terms of size and design aesthetics – the height of this unit stands out clearly against the Airmega 300:

Levoit LV H133 Coway Comparison 2 logo

When the time comes to replace the filter, you’ll find out that it’s a fairly easy job. Simply remove the back panel and you will see the filter ready to be changed.

Without the filter inside, you will be able to spot the large fan that powers the LV-H133. I donโ€™t like to judge a book by its cover, but you can tell by the look that this fan means business.

360-degree filter technology

The Levoit team are big fans of the 360-degree filter. It obviously works, considering that youโ€™ll find them in each of their Core air purifiers, as well as the LV-H133.

Levoit LV H133 FIlter 3 logo 2

The LV-H133 filter is made up of three layers:

  1. Nylon Pre-Filter – The main job of the pre-filter is to act as the first line of defense. It works by capturing the larger airborne particles from your room and trapping them. This also means that the HEPA filter doesnโ€™t need to work as hard, giving it more life before it needs replacing.
  1. Main Filter – Highly effective at removing 99.97% of fine airborne particles like mold, pollen, pet dander, and dust mites. This is the part of the filter thatโ€™s doing the heavy lifting when it comes to cleaning the air.
  1. Activated Carbon Filter – The last stage in the process is by no means the least. This layer is packed with activated carbon, which is used to adsorb orders and other VOCs (Volatile Organic Compounds) like cooking smells, pet odors, fumes, and smoke.
Levoit LV H133 Filter change logo 3

Not only is the LV-H113โ€™s filter highly effective, but itโ€™s also straightforward to replace when the time comes, as I said earlier in this review.

All you need to do is:

  1. Remove the back panel
  2. Pull out the old filter
  3. Slide the new one in 

Itโ€™s that easy. Check out this instructional video if those steps werenโ€™t clear enough.

Tip

Do yourself a big favor, and make sure you remove any packaging from the filter before you start using this (or any) unit. If you donโ€™t, it will not be able to clean any particles from the air and will create a burning smell โ€” which is the opposite of what you want, right?

The Levoit LV-H133 cleared our test room in 25 minutes  

Okay, down to the nitty-gritty, the performance. 

When we review an air purifier, we donโ€™t just look at it, turn it on for a minute, and take some photos to copy/paste specs into an articleโ€”ahem, most review websites out there.

We test each air purifier in a real-life environment, putting it through its paces. This way, we can tell you exactly how they perform compared to one another.

Levoit LV H133 Testing logo

We do this by putting each unit in our 728 cubic ft test room, filling that room with pollutants using incense sticks, and then setting the purifier on full to see how long it takes to clear the room of pollutants. 

We can then monitor every minute of this test using our Purple Air Indoor sensor, which gives us data on PM1.0ug/m3, PM2.5ug/m3, and PM10.0 ug/m3. We then use that data to show you our findings in a simple graph.

Hereโ€™s what we found when testing our LV-H133:

The graph shows the pollution filling the room up to 10:19 a.m., which is the moment we switched the Levoitsโ€™ fan on to full speed. After that, contaminants swiftly declined as the LV-H133 filtered out those airborne pollutants and reached zero for PM1.0 particles at 10:44. That was exactly 25 minutes later.

Air cleaning speed, compared

The performance we’ve seen in the LV-H133 is impressive for a unit that could be seen as ‘old’ by today’s standards. Letโ€™s compare that to other units we have tested in the same room.

You can see that modern units like the Levoit Vital 200S or the Winix 5500-2 outperformed the LV-H133 by a fair share. However, this air purifier is still more powerful than similarly priced units such as the Alen BreatheSmart Flex.

Noise levels, compared

The sound these units emit is a major factor in whether I will use them again. I like to make music at home, so if the air purifier Iโ€™m using is loud, itโ€™s not gonna stay. 

The LV-H133 kicks out 28 dB on its lowest setting, which is hardly noticeable in an average household. On high, it goes up to 54dB, which is no jet engine, but you will hear it. As this unit clears your room of pollutants so fast, youโ€™ll never need to have it on high for too long.

Check it out for yourself in this video.

The cost to run a Levoit LV-H133: $155.43 per year

1. Electricity costs = $42.86 per year

With the ever-rising costs of electricity and our environmental duty to be more energy-efficient, you need to factor in how much an air purifier costs to run. Thereโ€™s no point in having clean air if youโ€™ve got a monster energy bill to pay for it.

Luckily, Levoit has you covered. Each of their units is rigorously tested for its energy consumption as it strives to achieve an Energy Star Certificate to prove its efficiencyโ€ฆwhich it has. 

As with all our units, we donโ€™t rely on what the manufacturers say, so we always test their energy consumption ourselves. We found that on its highest setting, the LV-H133 pulls 28.1 watts and less than 0.8 watts on its lowest. But what does that mean in terms of $$$?

Using the average energy prices of the U.S. Bureau of Labor Statistics, we worked out that if you had the LV-H133 on full fan speed, for 24hrs a day, 365 days a year (which is ridiculously pointless and wasteful), it would cost you $42.86 a year to run.

2. Filter costs = $126 per year

Unfortunately, electricity is not the only cost to factor into your purchase.

The HEPA filters in air purifiers donโ€™t last forever. Over time they lose their efficiency as they become clogged up with the fine particles theyโ€™ve trapped. If you want your LV-H133 to operate to its potential, youโ€™ll need to replace the filter every 6 to 8 months. 

Levoit LV H133 Filter logo

Donโ€™t worry, you wonโ€™t have to check the filter daily. The filter change indicator light will go on when the unit recognizes needing a replacement.

You can pick up an official Levoit replacement filter online for $62.99* or an unofficial one for $52.99*.

LEVOIT LV-H133 Replacement Filter, Genuine Air Purifier Filters, High-Efficiency Activated Carbon for Removal of Smoke, Odor, Allergens, Pollen, LV-H133-RF, White,1 Pack
Flintar LV-H133 Replacement Filter, Made in Taiwan, Compatible with LEVOIT LV-H133 Tower Air Purifier, H13 Grade Filtration & Activated Carbon Filter Set, Part Number LV-H133-RF
Technology
H13 HEPA and Activated Carbon Filter
H13 HEPA and Activated Carbon Filter
More information
Price
$62.99
$39.99
LEVOIT LV-H133 Replacement Filter, Genuine Air Purifier Filters, High-Efficiency Activated Carbon for Removal of Smoke, Odor, Allergens, Pollen, LV-H133-RF, White,1 Pack
Technology
H13 HEPA and Activated Carbon Filter
More information
Price
$62.99
Flintar LV-H133 Replacement Filter, Made in Taiwan, Compatible with LEVOIT LV-H133 Tower Air Purifier, H13 Grade Filtration & Activated Carbon Filter Set, Part Number LV-H133-RF
Technology
H13 HEPA and Activated Carbon Filter
More information
Price
$39.99

It is worth mentioning that we haven’t tested the unofficial filter, so we canโ€™t testify to its efficiency.

Spending potentially $126 every year on filters does seem quite expensive, especially when the Core 600S out-performs the LV-H133 and its filters are slightly cheaper at $59.99*

Bottom line

The Levoit LV-H133 has most of the smart features I expect from units these days, such as a timer, Sleep mode, Auto mode and an air quality indicator, but it lacks app connectivity.

We canโ€™t deny that the LV-H133 outperforms many other units on the market at a fraction of the price. Itโ€™s also energy-efficient, saving you money on electricity bills, but the cost of replacement filters lets it down.

Levoit LV H133 Living room logo

I like this unitโ€”I really doโ€”but I canโ€™t help pointing out that the Core 600S is a superior model with its 410 CFM CADR, 635 sq. ft. room capacity, cheaper replacement filters, app connectivity, and it’s also 7 lbs lighterโ€ฆ all for an extra $50.


SOURCES

We calculated yearly costs associated with running the Levoit LV-H133 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

Coway Airmega 300 review

DSC00224

If youโ€™ve already started your journey into home air purification, you will likely have come across Coway units in your research. With over three decades of experience under their belts, the engineers at Coway have made it their mission to โ€œhelp people live happier, healthier livesโ€ by innovating technology through research, development, and design.

Coway has developed their HyperCaptiveโ„ข air filtration system, combining their washable pre-filter, Green True HEPA filterโ„ข, and activated carbon filter. 

Since its release, the 300 has had an update in the 300S, which has WiFi capability to connect to the Coway smartphone app, which can also connect to your Google Home device if you have one. Also, with new models released like the Airmega 250S and Airmega Icon (which has a wireless phone charging dock), the 300 might look a little ancient.

Based on our data, Coway has made a great little unit with a high CADR for its size at 300 CFM. It may be a bit more expensive than other units of this size like the Honeywell HPA300, but youโ€™re also getting some pretty neat smart features and its Max2 HyperCaptiveโ„ข filters.

The lowdown on the Coway Airmega 300


danny

“During our air cleaning performance test, the Airmega 300 cleared our testing room in an impressive 26 minutes and based on its CADR of 298.7 cfm its good for rooms up to 459 square feet with 4.8 air changes per hour.

Yes, itโ€™s a bit plasticky, no, it doesnโ€™t have as many features as some of the units in this price range, but its a popular large CADR air purifier for a reason – its performance.”

โ€” Danny Ashton, Founder & Senior Writer

Coway Airmega 300S Living room 1

PRICE on amazon PRICE on Coway UK

If youโ€™re too busy to check out the full review, here are the pros and cons I found with the Coway Airmega 300 when putting it through its paces.

What we really like

A modern design that will fit into many different decors.
It has an air quality indicator light.
It features an auto-mode.
Having a filter on each side maximizes the cleaning of contaminated air

What we think could be better

The four legs can mark carpets. Wheels would have been better.
That on/off jingle will haunt my dreams.

HouseFresh Rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our test room:26 minutes
Air purifier technology:Three-stage HyperCaptiveโ„ข Max2 filters (pre-filter + activated carbon + Green True HEPAโ„ข)
Recommended room size:459 square feet (4.8 air changes)
Clean air delivery rate (CADR):306 CFM (589 mยณ/h)
Dimensions (in inches / in cm):13.6W x 21.2H x 13.6D inches (34.5W x 53.8H x 34.5D cm)
Weight (in pounds / in kg):21.4 lbs (9.7 kg)
Noise level (low โ€“ high):22dB – 52dB
Filter life:12 months
Warranty5 years from the date of the original retail purchase
Estimated energy consumption:$55.71 per year

A clear focus on design

As soon as the 300 landed on my doorstep, you could tell from the packaging that this came from a company that values its design, as it shows you what the unit looks like from all angles before you even open the box.

Pulling it out of the box, you instantly feel itโ€™s quite light, so moving it from room to room isnโ€™t a problem using the handles on each side.

Coway Airmega 300 Close Up Front

The power button is recessed and the rest of the controls are touch sensitive. This took me a few seconds to work out, as I skipped the instruction manual (I like to delve straight in).

Coway Airmega 300 Top Down

On the front of the unit is the circular LED air quality monitor. The color changes let you know the air quality in the room so that you can adjust the fan accordingly. A great feature of the Coway units is that the colors donโ€™t change drastically; they blend seamlessly into the next, making it very unintrusive.

ColorAir Quality
BlueGood
PurpleModerate
PinkUnhealthy
RedVery Unhealthy

A design issue I found with the 300 is that the side and front panels detach a little too easily and when they do, they feel a little flimsy. Also, the legs are thin and leave marks on the carpet. This unit would benefit from either a flat base or wheels.

Placing the 300 next to the Levoit LV-H133 (which is very similar in performance), you notice the size difference. Coway have taken what could have been a plain white front and added a fake grill to give it that extra design feature. I prefer the lighter black finish of the 300 over solid black on the top of the unit, but the overall shape of the Levoit is more appealing.

Levoit LV H133 Coway Comparison 2 logo

Operating the 300 is easy. A pro to not having a butt load of features is that you donโ€™t get confused when making adjustments. There are four buttons on the control panel:

Coway Airmega 300 Manual Controls NO LOGO NEEDED

  1. On/Off button
  2. Fan speed/Auto mode selector
  3. Timer
  4. Display light on/off

The timer function has three modes, 1hr, 4hr, and 8hr. You press on the clock icon on the left-hand side to scroll through the modes until you hit your desired time. The โ€œbuttonโ€ next to the timer is a little light bulb. This allows you to turn on/off the lights on the color quality monitor. Perfect for using this in the bedroom as you sleep or if you donโ€™t want it to draw any attention to the unit.

Coway Airmega 300 Controls 2 1

On the right-hand side is where you control its four fan speeds. Tap the circle to scroll through each speed, or leave it on smart mode. If youโ€™ve read any of my other reviews, youโ€™ll know this is my preferred option. The smart mode works with the quality monitor to automatically adjust the fan speed to adapt to the quality of the air in real-time.

Tip

The air quality sensor should be cleaned every two months for absolute accuracy. You can access the sensor through the front panel.

Coway Airmega 300 Controls

Another great feature of Smart mode is that if the air quality doesnโ€™t change after 10 minutes, the unit will shut the fan off automatically to save energy. If the air quality then changes, it will automatically start again. The controls are easy to adjust, and it takes little time for the fan to reach your desired speed. 

The lowest speed is their night mode. This ensures that the fan stays at a constant speed, making the least noise possible so it doesnโ€™t disturb your much-needed rest.

There isnโ€™t a whole load of features on the Airmega 300. I wanted an app to control and monitor the unit without being in front of it. If you agree, check out the WiFi-enabled Airmega 300S, which you can control through the Coway app.

Two three-stage HyperCaptiveโ„ข Max2 filters

Okay, down to the nitty-gritty, the main reason we want an air purifier in the first place. How does the Airmega 300 perform at cleaning your room of airborne contaminants? 

Coway Airmega 300 Pre Filter HEPA Filter

Each Coway unit is fitted with two signature three-stage HyperCaptiveโ„ข Max2 filters. One for each side of the unit.

  • Stage 1 – Pre Filter: This acts as the first line of defense. It captures the larger particles in the air like hair, dust, and dust mites. By filtering these particles early, it prolongs the life of the rest of the filters. It can be washed at home as well, so thereโ€™s no need to replace it.
  • Stage 2 – Activated Carbon Filter: This uses a large amount of activated carbon to remove and deodorize odors from your home. From cooking, cigarette/vaping, and pet smells, to odors that contain harmful gases like VOCs (Volatile Organic Compounds). These VOCs can cause headaches, nausea, and in the long term have been linked to liver damage and even cancer.
Coway Airmega 300 Carbon Filter

  • Stage 3 – Green True HEPAโ„ข Filter: The last line of defense is arguably the most important. This โ€œone of a kindโ€ filter captures 99.999% of ultra-fine particles down to 0.01 ใŽ›ยฒ, including bacteria, mold, viruses, and pollen. Ideal for those who suffer from allergies.

The filters are hidden behind the removable grill on each side of the air purifier. Coway suggests replacing these every 12 months, but if you forget, an indicator light on the control panel will tell you exactly when itโ€™s time. One indicator is devoted to the pre-filter. When this lights up, you need to remove it, wash and dry it, then return it to its position. The second will indicate when the Max2 filter needs replacing. 

Replacing the filters isnโ€™t a hard task. 

Step 1: Unplug the unit and remove the magnetic side panel

Coway Airmega 300 Filter Change 2

Step 2: Unclip the pre-filter

Coway Airmega 300 Filter Change 3

Step 3: Pull the tab on the top of the Max2 filter to remove

Coway Airmega 300 Removing Filter

Step 4: Insert your new Max2 filter and reverse the steps

Tip

Before inserting your new Max2 filter, remove all the plastic packaging first.

We recorded a video showing you how to do this, in case the step-by-step above isn’t clear enough:

The Coway Airmega 300 cleared our test room in 26 minutes

At HouseFresh, we put every air purifier through its paces to see how they perform in real-world conditions. We do this because we want to give you, the reader, an idea of what it can do in your home. We donโ€™t live in airtight labs, so why should we judge an air purifier’s performance in one?

For our performance tests, we always use the same conditions each time. This means we can easily compare each unit against the other. 

We test each air purifier in our 705 cubic ft office. By filling the room with different-sized contaminants created from incense sticks, we turn the unit onto its top fan speed and measure how long it takes to clear the pollutants.

To measure each unit’s performance, we use a Purpleair indoor monitor, which tracks the number of airborne pollutants of sizes 1.0ug/m3, 2.5ug/m3, and 10.0ug/m3 every few minutes.

Hereโ€™s what we found with the Airmega 300:

Coway airmega 300 AHAM CADR

With a CADR of 296.3 for Smoke, 298.7 for dust, and 389.8 for pollen, we expected the 300 to perform well in our testing room, and we werenโ€™t wrong. As you can see on the graph, the Airmega cleared the pollutants created by incense in just 26 minutes.

Air cleaning performance, compared

The result wasn’t a surprise when we compare this to other air purifiers weโ€™ve tested. It shows that the 300 is right up there with the other major players like the Honeywell HPA300 with the same performance time and the Levoit LV-H133, which was only 1 minute faster.

Noise levels test results, compared

Sound is a big part of my life. I love all things music and spend a lot of time playing guitars, synthesizers, and many (maybe too many) other weird handmade instruments. For an air purifier to live in my house, it has to be stealthy. 

Compared to some of the other units weโ€™ve reviewed:

When you look at the decibels produced, the Coway seems like an average unit. But when you compare that to the size of the room itโ€™s working in and the size of its fan, youโ€™ll see that it does a quieter job than most when working in larger rooms.

 Hereโ€™s a sound video for you to gauge the hum it produces:

The cost of running a Coway Airmega 300: $144.50 per year 

1. Electricity costs = $55.71 per year

When buying an air purifier, itโ€™s not only the price of the unit you need to consider. You also need to think about how much it will cost to run. Air purifiers use electricity, electricity costs money, and those costs are growingโ€ฆrapidly.

Luckily, manufacturers are making air purifiers more energy efficient. As efficiency is at the forefront of our global warming, brands are starting to show they care by getting energy-certified products from companies Energy Star.

When it comes to the Airmega 300, Coway has made a pretty efficient unit. We clocked its highest energy consumption at 52.5 watts. This was on its highest fan speed which, as youโ€™ve seen from our performance test, wouldnโ€™t need to be on for long periods of time.

We figured out that you would be paying around $55.71 yearly to power your unit. In my opinion, thatโ€™s a pretty small price for all the health benefits and fresh, clean air the 300 provides.

We calculated this cost using the average price of energy in the U.S. with the help of the Department of Energyโ€™s appliance energy calculator.

2. Filter costs = $88.79 per tear

Not only do you need to power your air purifier, you also need to keep it working at its maximum efficiency. This includes replacing its HEPA and Activated Carbon filters. Over time, these filters become clogged with all the contaminants theyโ€™ve pulled out of the air in your home. Once they become full, they become less efficient.

Replacing these filters is an expense you canโ€™t skip on. After all, thereโ€™s no point paying to run an air purifier if the filters are too full to do their job.

Luckily, when you buy a replacement from Coway, they come in sets of two, so thereโ€™s no need to double the cost. Each set can cost up to $99, depending on where you shop. There are unofficial Max2 filters that cost less, but I canโ€™t testify to how efficient they are.

Coway AIRMEGA Max 2 Air Purifier Replacement Filter Set for 300/300S, green/black, 1256 sq. ft. (3111635)
300/300S Replacement Filter for Coway AIRMEGA Max2 300/300S Air Purifie-r, Combined with HEPA and Activated Carbon 2-in-1 Filter, AP-1515-FP
Technology
Coway Airmega Max2 filter is an all-in-one HEPA filter system that combines True HEPA filter technology with an Activated Carbon filter
Combined True HEPA with Activated Carbon 2-in-1 Filter
More information
Price
$89.99
$33.24
Coway AIRMEGA Max 2 Air Purifier Replacement Filter Set for 300/300S, green/black, 1256 sq. ft. (3111635)
Technology
Coway Airmega Max2 filter is an all-in-one HEPA filter system that combines True HEPA filter technology with an Activated Carbon filter
More information
Price
$89.99
300/300S Replacement Filter for Coway AIRMEGA Max2 300/300S Air Purifie-r, Combined with HEPA and Activated Carbon 2-in-1 Filter, AP-1515-FP
Technology
Combined True HEPA with Activated Carbon 2-in-1 Filter
More information
Price
$33.24

When you add that to the cost of changing the filter every 12 months, this unit costs $144.50 per annum. Of course, these calculations are conditional on how much you use it, what size room youโ€™re using it, and which state youโ€™re in. 

Bottom line: Is the Coway Airmega 300 worth it?

Although the 300 does have its faults; no wheels, annoying jingles, and a top grill (in which you could lose a penny), it is still one of my favorite units Iโ€™ve reviewed and will remain in my office. 

It may not have the features we expect from recent models, such as an app to control and monitor or even a remote control, but the 300 still holds its own against its competitors in our performance tests.

Coway Airmega 300 Editorial

It clears the air of contaminants and odors rapidly, and the color wheel air quality monitor is a great feature to reassure you that the unit is working. It doesnโ€™t take up too much room compared to other units that service larger rooms, like the Alen BreatheSmart 75i

Overall, the Coway 300 would make a great addition to your home. My only advice would be (if you have it) to spend a little extra and go for the Airmega 300S for its extra features.

SOURCES

We used the Department of Energyโ€™s appliance energy calculator to calculate yearly costs associated with running the Coway Airmega 300 for 24hs a day for 365 days. We ran this calculation utilizing the U.S. average utility rate of $0.12/kWh as of March 12th, 2023.

GermGuardian AC4825e review

Germ Guardian AC4825e Kitchen Counter NO LOGO 1

The GermGuardian AC4825e is the top-selling unit for Guardian Technologies – a US company based in Ohio that was founded in 2002 and creates air purifiers, humidifiers, and essential oil diffusers. Guardian Technologies was bought by Lasko Products, a manufacturing company that has been operating for around 100 years. Lasko Products makes humidifiers, portable heaters, and fans with 376 employees based in Philadelphia.

The AC4825e has been around since 2013, and while demand for this unit has waned over the last few years, it has regularly been on a major top-selling air purifier list. The main area that the AC4825 stands out is that it is Aham verified, and itโ€™s available for less than $100.

Here at HouseFresh, weโ€™re unashamed air purifier nerds, so we constantly research CADR rankings and all the other science bits published by the manufacturers. BUT we put them to one side to perform our tests. I wouldnโ€™t be 100% confident recommending a unit without playing with all its settings and putting it through our real-life performance testing first.

how we test
How we test air purifiers

Read our full testing methodology.

The lowdown on the GermGuardian AC4825e

Danny Ashton HouseFresh
โ€œA budget air purifier that is not worth your money in 2023, where you will find budget units that perform better and have lots of additional features for the same price as the AC4825e.โ€
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
GermGuardian AC4825 Living Room logo

PRICE on amazon PRICE on EBAY

Not in the mood to read the full review? We know that feeling. Save yourself some time and check out our pros and cons. You never know; you just might want to read on.

What we really like

55dB (sound level) at the most powerful speed is similar to other units at this price level.
You can find generic filters for a good price – $17 for four carbon filters and one HEPA filter.
Cheap initial price
Great clear screen onboard sensor

What we think could be better

Performance scores were poorer than we expected, with the CADR od only rating of 125 CFM.
It’s a power-hungry unit – 45 watts to clean our test room in 104 minutes.
UV-C is useless – we didnโ€™t see any difference when switching it on or off and would recommend choosing the non-UV-C version as it uses less electricity.

The GermGuardian AC4825e is aimed at the budget range of air purifiers, with its top competitor being the Levoit 300.

HouseFresh rating:โ˜…โ˜†โ˜†โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):1 hour and 44 minutes
Air purifier technology:True HEPA with UV-C
Recommended room size (4.8 air changes per hour):167 sq. ft.
Clean air delivery rate (CADR):Dust: 118 CFM
Smoke: 99 CFM
Pollen: 125 CFM
Dimensions (in inches / in cm):21.5H x 6.75W x 10.25D inches (54.61H x 17.14W x 26.03D cm)
Weight (in pounds / in kg):8.6 lbs (3.9 kg)
Filter life:6 โ€“ 8 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 40 dB
Speed 2: 44.8 dB 
Speed 3: 51.6 dB
Speed 4: 55.6 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0 watts
Speed 1: 35.45 watts
Speed 2: 39.76 watts
Speed 3: 44.25 watts
Estimated running cost (electricity consumption + official filter replacement):$121.49ย per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.72
Manufacturerโ€™s warranty:3 years
Country of manufacture:China

Old-fashioned design

1990โ€™s called and they want their design back.

GermGuardian AC4825 Close Up logo

But in all seriousness, the design does feel a little old-fashioned, but it does have a small floor space required as itโ€™s so tall. It looks more like a fan than an air purifier which might be a good thing, depending on how you want to use it.

It has a super simple menu system with a circular wheel to control power and a one-click button to switch the UV mode on or off.

GermGuardian AC4825 Controls logo

At the $99 price point, the best comparison to make is with the Levoit Core 300. I prefer Levoitโ€™s design, but maybe you might like the GermGuardian AC4825e – beauty, after all, is in the eye of the beholder.

Germ Guardian AC4825e VS Levoit Core 300S logo

HEPA filters below par

The GermGuardian AC4825e is a relatively simple unit with two filters (true-HEPA and activated charcoal), which you can access by removing the back panel.

GermGuardian AC4825 Open Filter logo

The quality of the True HEPA filter is fair, and it covers the entire flow space of the air purifier.

GermGuardian AC4825 Filter true HEPA logo

Itโ€™s worth noting that the activated charcoal filter is relatively cheap as it is made of fabric covered in charcoal.

GermGuardian AC4825 Dual Filter logo

This is a big difference when compared with higher-end and more modern air purifiers that use pellets of charcoal -but it’s not just about expensive units; when looking at other budget air purifiers such as the Levoit Core 300 and TaoTronics AP003, they both use pellet-based charcoal for the activated carbon filters.

GermGuardian AC4825 Fillter activated charcoal logo

Tip

If you are serious about removing odors, I would always look away from the GermGuardian AC4825e and instead go for air purifiers that use pellets of activated charcoal and have filters packed with at least 1lb of carbon.

If you have an issue with VOCs or Formaldehyde, go for something like the IQAir Healthpro Plus, which uses a combination of zeolite and other chemicals within a filter along 5 lbs. of activated charcoal.

Returning to the GermGuardian AC4825e, the filter is rated at H13 HEPA. After spending some time reading the reviews for replacement filters, there seems to be a change in manufacturer as some customers found that the latest filters donโ€™t seem to have the same quality as those bought previously.

Replacing the filter when the time comes is not complex:

It is worth mentioning that the GermGuardian team has reported a new manufacturer has been found for the HEPA and activated charcoal filters. Hence, they expect newer filters to perform better than older ones.

The last point I will make on the filter technology of the GermGuardian AC4825e is that I think UV-C lights are useless on portable air purifiers, especially at this low price point, and this air purifier has yet to change my mind.  

The GermGuardian AC4825e cleared our test room in 104 minutes

The big question with any air purifier is how well it cleans the air.

GermGuardian AC4825 Performance Testing logo

For all the air purifier tests we conduct at HouseFresh, we test them in the same-sized room. This allows us to compare units with one metricโ€”how long did it take to remove pollutants from the air?

We use incense to create pollutants of different sizes and use a Purpleair indoor monitor to track how quickly these are removed over time. The sensors on the Purpleair device can track the number of pollutants of size 1.0ug/m3, 2.5ug/m3, and 10.0 ug/m3 every few minutes. The room we test is the size of a small bedroom with a total capacity of 728 cubic ft – this allows us to test units designed for all types of spaces.

Based on the CADR score of 125, we expected this unit to perform at the same level as the Levoit PUR131, which cleared our room of all pollutants in 60 minutes. 

Air cleaning performance, compared

Sadly, the GermGuardian AC4825e took 104 minutes to remove all pollutants from our test room. This is a lot more time than we would expect based on the pure CADR score and is one of the big reasons we like to do our own testing. This score is not too far from the much cheaper Levoit Mini that cleaned the room in 113 minutes for far less money and electricity. 

These numbers make it hard to recommend this unit on a pure performance to $ ratio.

Noise levels test results, compared

One area in which the GermGuardian AC4825e fared OK was with sound: it reached a maximum of 55.6 dB, which is in the same range as other units at this price level.

Take a listen for yourself below to get a better idea:

The cost to run a GermGuardian AC4825e: $121.49 per year

1. Electricity costs = $67.49

One of the costs many people ignore when looking to buy an air purifier is running it. If you have an issue with an allergen in your outdoor environment, you will need to ensure your unit is running 24/7, and costs can quickly add up. 

When we review air purifiers at HouseFresh, we use an electricity meter to see how much power is being used at the highest speed. At the maximum power setting with the UV-C mode on, the GermGuardian AC4825e pulled 44.25 watts which equates to $67.49 in one year, according to data from the U.S. Bureau of Labor Statistics.

This compares very unfavorably to many of the newest air purifiers on the market. The Blueair Blue Pure 311 Auto uses a maximum of 32 watts but can clean our room in 21 minutes. I have to assume that there have not been any changes to the fan efficiency since the first AC4825 came out in 2012, as it shows poor levels of efficiency.

2. Filter costs = $54

Another cost often forgotten about when buying a new air purifier is replacement filters. The way that mechanical filters like HEPA and Activated Charcoal work are that, over time, they become full of pollutants and beyond a certain point, performance will drop unless you replace them. 

Itโ€™s recommended that for the AC4825e air purifier, you must replace the filters every six to eight months, depending on usage.

Assuming that you will have to change them every 6 months, the annual cost of filters for the original filters would be $54. This compares fairly well with other units, such as the Levoit Core 300, which could cost you up to $80 in filter replacements in one year. Still, itโ€™s also worth noting that the activated charcoal filter used by the AC4825e is much cheaper and less effective than the Levoitโ€™s, which uses charcoal pellets instead of the less effective impregnated fibers.

GermGuardian Filter B HEPA Pure Genuine Air Purifier Filter, Removes 99.97% of Pollutants, Wildfire Smoke, Odors, for AC4825, AC4300, AC4850, AC4880, AC4900, CDAP4500, AP2200, Black/Yellow, FLT4825
Filter-Monster โ€“ Replacement Filter with Carbon Pre-Filter Set, 2 Filters and 2 Carbon-Filter Pack - Compatible with GermGuardian Air Purifier FLT4825 Size B
Technology
True HEPA filter with Activated Charcoal layer
True HEPA filter with Activated Charcoal layer
More information
Price
$19.89
$18.99
GermGuardian Filter B HEPA Pure Genuine Air Purifier Filter, Removes 99.97% of Pollutants, Wildfire Smoke, Odors, for AC4825, AC4300, AC4850, AC4880, AC4900, CDAP4500, AP2200, Black/Yellow, FLT4825
Technology
True HEPA filter with Activated Charcoal layer
More information
Price
$19.89
Filter-Monster โ€“ Replacement Filter with Carbon Pre-Filter Set, 2 Filters and 2 Carbon-Filter Pack - Compatible with GermGuardian Air Purifier FLT4825 Size B
Technology
True HEPA filter with Activated Charcoal layer
More information
Price
$18.99

Bottom line

The AC4825e is an old air purifier, and itโ€™s starting to show when you compare it with newer units from brands like Levoit and Medify.

The Levoit Core 300 and Medify MA-14 are found for less than $100 and perform much better in our performance test than the AC4825e. 

Germ Guardian AC4825e Kitchen logo

Combined with its high electricity costs, even the fairly cheap replacement filters for the AC4825e canโ€™t make us recommend the GermGuardian AC4825e over many other budget units on the market. 

If you are looking to buy the AC4825e, be sure to check out our reviews first for the Levoit Core 300 and Medify-14 as you will get much more for your money both in the short term and long term.

SOURCES

We calculated yearly costs associated with running the GermGuardian AC4825e 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of April 2024.

Smart Air Blast Mini review

Blast Mini MKII Corner

Smart Airโ€™s story is one of humble beginnings. It all started in 2013 when founder Thomas Talhelm was a student in Beijing, working on his PhD. 

Air pollution is an ongoing issue in Beijing, mainly due to smog, traffic pollution, coal burning and sandstorms. This led Talhelm to want to buy an air purifier, but he was shocked to find the cost of air purifiers was way outside his budget.

Talhelm decided to take matters into his own hands. 

He solved his problem at a fraction of the cost by simply strapping a HEPA filter to a fan. When he posted his results online on his blog, Particle Counting, he started to receive positive feedback and questions from folks wanting to do the same.

And so, Smart Air was born. Initially, they focused on selling DIY kits (a box fan, a HEPA filter and a strap) and hosting workshops in Beijing to teach people how to build their own air purifiers.

smart air 2013

Over time, Smart Air took the plunge and released its own line of no-nonsense, affordable air purifiers. That’s when units like the Blast Mini were introduced into the market.

The Blast Mini MkII is the second version of the Blast Mini. When designing the MkII, Smart Air made improvements to the original MkI design. They redesigned the air outlet to increase its airflow from 1200 to 1400 m3/hr, got rid of the metal wire guard and introduced hand twist screws to make it easier to remove the pre-filter, and upgraded the cardboard frame of the HEPA filter to make it lighter and more environmentally friendly.

In this review, I will walk you through the results of our performance tests, including how well the Blast Mini cleans the air, how loud (or quiet!) it is, how much money you will need to spend every year to keep it running, and how itโ€™s like to live with it.

how we test
How we test air purifiers

Read our full testing methodology.

The lowdown on the Smart Air Blast Mini

Danny Ashton HouseFresh

“The Blast Mini outperformed all the units weโ€™ve tested so far. Itโ€™s not loud, and although itโ€™s heavy (mainly due to its metal body), it has wheels that move it around with ease. 

This is an air purifier that will stand the test of time.”

โ€” Danny Ashton, HouseFresh Founder & Senior Writer

Blast Mini MKII Corner

ยฃ432 AT SMART AIR UK

If you want a quick summary, these are my main likes and dislikes for the Blast Mini.

What we really like

Itโ€™s made from metal instead of plastic, making it more durable and better for our planet.
It has a high CADR rating of 435 CFM (740 m3/h) โ€“ it cleaned the air in our test room in just 15 minutes.
The filter boasts a longer life than most other brands (13 months).
It doesnโ€™t look out of place in my home, and I like the design of the front plate.
It is incredibly easy to use thanks to its one-dial operation. No fluffy functions.
Our sound tests showed it is incredibly quiet, considering how powerful its fan is.

What we think could be better

At 59 lbs, it ainโ€™t easy to move this device from room to room โ€” luckily, it comes with wheels.
The control dial sits at the back, making it difficult to access if you have the unit close to the the wall. But that also means that your kids (or your pets) wonโ€™t be able to access the controls easily.
Our electricity consumption test showed it is not as energy-efficient as other units (122.7 watts at its highest fan speed).

Clean air delivery rateย (CADR):โ€“ Top speed PM1 CADR: 400 cfm
โ€“ Sub-45 dBA PM1 CADR: 272 cfm
โ€“ Manufacturer provided CADR: 437 cfm
Filter technology:H13 HEPA filter (and optional pelleted activated carbon filter)
Recommended room size:600 sq. ft. (5 air changes per hour):
Dimensions:22.6L x 13W x 24.8H inches (57.5L ร— 33W ร— 63H cm)
Weight:59 lbs (26.8 kg)
Noise level in decibels from 3 ft. away:Speed 1: 44.9 dB
Speed 2: 51.2 dB
Speed 3: 56.3 dB
Electricity consumption in watts:Standby mode: 0 watts
Speed 1: 51.9 watts
Speed 2: 87.4 watts
Speed 3: 122.7 watts
Filter lifespan:13 months
Manufacturerโ€™s warranty:1 year
Country of origin:China
Country of manufacture:China

Right, letโ€™s find out if the Blast Mini is the right air purifier for you.

The best Blast Mini feature: it is powerful yet quiet

Outstanding air cleaning speed that doesnโ€™t disturb you.

The Smart Air Blast Mini has a high-performance motor that moves air through the filters a lot faster than every other air purifier I have tested. But hereโ€™s the thing: it is super quiet, too.

After our performance tests, the Blast Mini took the #1 spot as the fastest unit at cleaning the air (15 minutes, according to our PurpleAir Zen sensor) and the #1 spot as the quietest large air purifier (56.3 dB at top speed). 

Have a listen for yourself:

The โ€œMiniโ€ that is not so mini

No more plastic โ€” you can now choose this metal beast with wheels and a one-dial control.

Blast Mini Living room

The Smart Air Blast Miniโ€™s body is fully made of metal. This material will stand the test of time and is also a far more sustainable option compared to the plastic body of every other air purifier on the market.

Despite all odds, the metal body is actually quite stylishโ€”mainly because of the beautiful front plate. Upon closer inspection, you can see that these cutaways are carefully polished to ensure there are no sharp metal edges anywhere in sight.

Blast Mini Design

The front plate is tightly secured by a metal top plate, which can be easily removed so you can access the filters. I say easily but be wary of the weight of each component of this air purifier, as everything is made of metal:

Blast Mini MKII Top Cover Removed

This is the part of the review where I clarify that the Blast Mini is not mini in size at all. The โ€˜Miniโ€™ in the name has been added in relation to size compared to the Smart Air Blast (the big brother of the Blast Mini), which is double the height.

For reference, I took a photo of the Blast Mini next to the popular Levoit Vital 200S just to show you how big this device is:

Smart Air Blast Mini vs Levoit Vital 200S

The good news is that, unlike other large air purifiers like the Blueair Blue Pure 211+ or the Levoit Core 600S, the Blast Mini has high-quality, lockable wheels that allow you to move the unit from room to room. 

Blast Mini MKII Wheels

That said, the size makes complete sense when you realize how powerful this air purifier is. I will go through our performance test results further down in this review, but I can tell you now that this thing is IMPRESSIVE.

Moving on, let me show you one of my favorite things about the Blast Mini: its minimalist control panel.

Do you see the black dial in the picture below? Thatโ€™s it. Thatโ€™s your control panel.

Blast Mini Control panel

There are three speeds to choose from. Simply turn the dial to select which speed you want, and voilร .

The downside of the Blast Mini is the lack of smart functions or app capabilities. I generally prefer air purifiers with Auto Mode and on-board air quality sensors, but Iโ€™m also a smart home geek who understands that these IoT features donโ€™t equal better air cleaning performance.

Smart Air believes that air purifiers should concentrate on their basic function without the need for bells and whistles, and they have designed a device that perfectly makes this point.

๐ŸŽธ The Blast Mini was spotted being used by The Anchoress, who is clinically vulnerable and used a number of these air purifiers to keep the air she breathed clean; check out the photos over at NME.com.

A large, long-lasting H13 HEPA filter

The filter is the most important part of any air purifier, and the Blast Mini does not disappoint.

Blast Mini Close up

Smart Air made it their mission to have the best HEPA filter in the market by testing different filters in order to find the highest-performing option to match their powerful fan. They decided on an H13 (medical grade) HEPA filter, which removes 99.95% of particles like dust, pollen, pet dander, bacteria and viruses.

Blast Mini MKII HEPA Cover

Another thing worth mentioning is that the HEPA filter in the Blast Mini is huge, measuring 57 x 57 cm (23 x 23 inches). 

Just to put this into perspective, check out how much larger the filter looks next to the filter in the Levoit Core 200S โ€” the Blast Mini HEPA filter is double the size of the Vital 200S filter!

Blast Mini MKII HEPA vs Vital 200S

Unlike other air purifiers, which need their HEPA filters replaced every six months, the Blast Miniโ€™s filter can last up to 13 months.

In addition to the HEPA filter, the Blast Mini comes with a pre-filter at the back of the unit. This pre-filter captures larger particles like dust and hair, prolonging the lifespan of the HEPA filter.

The pre-filter is screwed in with twist screws, so you can easily unscrew it when you want to vacuum it and wash it with water or a damp cloth.

Blast Mini Back

Now, if you are reading about the Blast Mini because youโ€™re considering it to help you tackle issues with VOCs or smells, be aware that Smart Air doesn’t provide an Activated Carbon filter as standard. 

That means you will have to purchase Smart Airโ€™s VOC filter as an optional extra. 

In the words of Smart Air, โ€œPurifier companies have a financial incentive to convince people to buy carbon filters.โ€ In their view, consumers should only buy a carbon filter if they truly need it.

The Blast Mini cleared our test room in 15 minutes

The large body of the Blast Mini hides a heavy-duty motor with a centripetal โ€œsquirrel cageโ€ fan that can quickly move a lot of air through the HEPA filter.

Blast Mini MKII No Filter

Now weโ€™ve come to the good part: how this air purifier performs in the real world. 

If you visit Smart Airโ€™s YouTube channel, youโ€™ll see videos of them testing the performance of their air purifiers in translucent domes. We donโ€™t have a translucent dome, and we guess you donโ€™t either.

So, we tested the Blast Mini in an actual room to see how fast it could clear our 728-cubic-feet test room of airborne pollutants we generated by lighting an incense stick. We turned the Blast Air on at full speed and monitored each stage of our test using two indoor sensors, our Purpleair Touch and PurpleAir Zen, which provided us with updates on PM1.0 Ug/m3, PM2.5 Ug/m3, and PM10.0 ug/m3 levels in real-time.

With a fan of this size, I expected great results from the Blast Mini but the data still managed to surprise me. This unit cleared our simulated airborne contaminants from our home lab in an astonishing 15 minutes.

This placed the Blast Mini at the top of our leaderboard: it is the fastest air purifier we ever tested. You can see in the chart below how it compared to the top 10 fastest units weโ€™ve tested;

The closest units are the Levoit EverestAir and the AirDoctor AD3000, both of which trail behind the Blast Min by just two minutes.

Fan speed test results

The cleaning performance of an air purifier depends on two factors: how good the filter is and how much air the unit pushes through it. Basically, the more power a unit has, the more clean air it can circulate in your room.

We used an anemometer to measure air speed when running our Blast Mini at each fan speed:.

Our data shows that at its lowest speed, the Blast Air pushes out an average of 0.55m of air per second (m/s). At medium fan speed, it pushes 1.6 m/s on average and at its highest speed, it pushes an average of 2.6 m/s.

Noise levels test results

As part of our tests, we also measured the noise levels generated by the Blast Mini at each of its fan speeds while standing 3 ft. away from it.

Because of the size and power of the fan in this unit, you canโ€™t expect it to be โ€œwhisperโ€ quiet, but itโ€™s by no means loud. 

At its lowest speed, you will hear the hum of the motor at 44.9 dB, and as you crank it up, it reaches 56.3 dB, which is about the sound of a conversation โ€” pretty outstanding considering the average decibels at the highest speed across all the units we’ve tested sit at 64 dB.

I know that sound can be subjective, so it is worth listening to the noise generated by the Blast Mini  with your own ears to decide if it is too noisy for you:

Hereโ€™s how the Blast Mini compares to other units in noise output, cleaning speed and initial price. 

AIR PURIFIER MODELSOUND LEVEL AT LOWEST SPEED (dB) SOUND LEVEL AT TOP SPEED (dB)TIME TO CLEAN OUR TEST ROOMPRICE
Blueair Blue Pure 211+37.2 dB55.7 dB18 minutes$249.95
Smart Air Blast Mini 44.9 dB56.3 dB12 minutes$599.00
Levoit EverestAir39.1 dB57.8 dB14 minutes$499.99
IQAir HealthPro Plus36.9 dB61.2 dB24 minutes$899.00
Austin Air HealthMate HM400 42 dB61.5 dB37 minutes$719.99
AirDoctor 300040.2 dB63.6 dB15 minutes$519.00

The cost to run a Smart Air Blast Mini: $285.29 per year

1. Electricity costs = $136.29 per year

When choosing the right air purifier for your home, you need to consider a few more things besides the size of your space and your taste in design. You need to think about how much it will cost to run, especially with ever-rising electricity prices worldwide.

That is why we used an energy monitor to measure how much electricity in watts the Smart Air Blast Mini consumes when running at each of its fan speeds.

Blast Mini MKII Energy Test

Our data shows that the Blast Mini isnโ€™t the most efficient air purifier. 

We clocked its highest usage at 122.7 watts, which is quite substantial. But thatโ€™s when running at its top fan speed, which you are unlikely to need to use for long periods of time. Itโ€™s recommended that you keep an air purifier on 24/7/365, but keeping the Blast Mini running at full speed for that long would be pointless and wasteful in most situations.

On its lowest setting, this unit pulls around 51.9 watts, which is still a lot compared to air purifiers with similar cleaning performance. For example, the Levoit EverestAir cleared our home lab in 14 minutes yet only pulls 69.8 watts at full fan speed.

AIR PURIFIER MODELENERGY CONSUMPTION AT TOP SPEED (watts)TIME TO CLEAN OUR TEST ROOM
Blueair Blue Pure 211+54.5 watts18 minutes
Levoit EverestAir69.8 watts14 minutes
AirDoctor 300093.2 watts14 minutes
Smart Air Blast Mini 122.7 watts12 minutes
IQAir HealthPro Plus145.2 watts24 minutes

2. Filter costs = $149 per year (HEPA only) or $236.99 (HEPA + VOC filter)

Another cost to consider is replacing the filters. The filter is the most important part of your air purifier; without it, you just have a fan in a box circulating polluted air. As HEPA filters work by trapping these pollutants, they become full and less effective over time. Thatโ€™s why they need replacing.

Even though Smart Air has redesigned their H13 HEPA filters for the Blast Mini, making them lighter and more environmentally friendly, they still come with a high price tag:

Smart Air (aka Smart Health) Blast Mini Genuine Replacement HEPA Filter โ€“ 99.97% Particle Filtration, Genuine Filter for Smart Air Blast Mini Air Purifier
  • โœ” ๐Ž๐‘๐ˆ๐†๐ˆ๐๐€๐‹ ๐’๐Œ๐€๐‘๐“ ๐€๐ˆ๐‘ ๐“๐‘๐”๐„ ๐‡๐Ÿ๐Ÿ‘ ๐‡๐„๐๐€ ๐‘๐„๐๐‹๐€๐‚๐„๐Œ๐„๐๐“ ๐…๐Ž๐‘ ๐๐‹๐€๐’๐“ ๐Œ๐ˆ๐๐ˆ ๐€๐ˆ๐‘ ๐๐”๐‘๐ˆ๐…๐ˆ๐„๐‘: This original Smart Air (aka Smart Health) Blast Mini HEPA replacement filter is designed exclusively for the Smart Air (aka Smart Health) Blast Mini Mk II air purifier(ASIN B09S4HDQDQ), ensuring proper fit, correct airflow, and reliable filtration performance in large rooms, offices, classrooms, and shared spaces.
  • โœ” ๐‘๐„๐Œ๐Ž๐•๐„๐’ ๐–๐‡๐€๐“ ๐Œ๐€๐“๐“๐„๐‘๐’ ๐Œ๐Ž๐’๐“ ๐ˆ๐ ๐‘๐„๐€๐‹ ๐ˆ๐๐ƒ๐Ž๐Ž๐‘ ๐„๐๐•๐ˆ๐‘๐Ž๐๐Œ๐„๐๐“๐’: These True H13 HEPA filters capture PM2.5, dust, pollen, mold particles, pet dander, allergens, bacteria, and airborne viruses. For families, allergy sufferers, pet owners, and high-occupancy spaces, this means fewer airborne irritants and cleaner air throughout daily life.
  • โœ” ๐„๐๐†๐ˆ๐๐„๐„๐‘๐„๐ƒ ๐…๐Ž๐‘ ๐๐‹๐€๐’๐“ ๐Œ๐ˆ๐๐ˆ - ๐๐Ž๐“ ๐€ ๐†๐„๐๐„๐‘๐ˆ๐‚ ๐‘๐„๐๐‹๐€๐‚๐„๐Œ๐„๐๐“: Original Smart Air (aka Smart Health) filters are engineered specifically for the Blast Miniโ€™s high-airflow, high-capacity system. They are built to match the purifierโ€™s airflow, pressure, and filtration balance - helping the Blast Mini perform the way it was designed: powerfully, efficiently, and consistently. For Original Genuine Activated Carbon Filter for Blast Mini ASIN B09SJVSTFP.
  • โœ” ๐Œ๐€๐’๐’๐ˆ๐•๐„ ๐‡๐„๐๐€ ๐’๐”๐‘๐…๐€๐‚๐„ ๐€๐‘๐„๐€ ๐…๐Ž๐‘ ๐‹๐Ž๐๐†๐„๐‘-๐‹๐€๐’๐“๐ˆ๐๐† ๐๐„๐‘๐…๐Ž๐‘๐Œ๐€๐๐‚๐„: The Blast Mini HEPA filter features an extra-large filtration surface, significantly larger than standard home air purifier filters. This allows it to maintain strong airflow while capturing more pollutants, supporting a long lifespan of 7โ€“14 months depending on air quality and usage.
  • โœ” ๐๐‘๐Ž๐“๐„๐‚๐“๐’ ๐˜๐Ž๐”๐‘ ๐ˆ๐๐•๐„๐’๐“๐Œ๐„๐๐“ ๐ˆ๐ ๐‚๐‹๐„๐€๐ ๐€๐ˆ๐‘: Using poorly made or overly restrictive filters can strain the fan and reduce purifier lifespan. Original Smart Air (aka Smart Health) HEPA filters are built to the correct specifications, helping protect internal components and ensuring long-term reliability of your Blast Mini air purifier.

The cost increases if you get the HEPA and the VOC filter, which I highly recommend you do:

Smart Air (aka Smart Health) Blast Mini Genuine Replacement Carbon Filter โ€“ VOC & Odor Filtration, Works with True H13 HEPA for Smoke, Chemicals & Household Gases
  • โœ” ๐Ž๐‘๐ˆ๐†๐ˆ๐๐€๐‹ ๐’๐Œ๐€๐‘๐“ ๐€๐ˆ๐‘ ๐€๐‚๐“๐ˆ๐•๐€๐“๐„๐ƒ ๐‚๐€๐‘๐๐Ž๐ ๐…๐ˆ๐‹๐“๐„๐‘ ๐…๐Ž๐‘ ๐๐‹๐€๐’๐“ ๐Œ๐ˆ๐๐ˆ: This genuine Smart Air carbon replacement filter is designed specifically for the Blast Mini air purifier (ASIN B09S4HDQDQ), ensuring proper fit, correct airflow, and reliable gas-removal performance. Using original filters helps your purifier operate the way it was engineered to - efficiently and consistently.
  • โœ” ๐ƒ๐„๐’๐ˆ๐†๐๐„๐ƒ ๐“๐Ž ๐–๐Ž๐‘๐Š ๐ˆ๐ ๐“๐‘๐”๐„ ๐๐€๐‘๐“๐๐„๐‘๐’๐‡๐ˆ๐ ๐–๐ˆ๐“๐‡ ๐“๐‘๐”๐„ ๐‡๐Ÿ๐Ÿ‘ ๐‡๐„๐๐€: HEPA filters capture particles like PM2.5, dust, pollen, and allergens. This activated carbon filter complements HEPA by addressing gases and odors, creating a more complete air-cleaning system that handles both particulate and gas-phase pollution.
  • โœ” ๐“๐€๐‘๐†๐„๐“๐’ ๐•๐Ž๐‚๐ฌ ๐…๐Ž๐”๐๐ƒ ๐ˆ๐ ๐‘๐„๐€๐‹ ๐‡๐Ž๐Œ๐„๐’ & ๐Ž๐…๐…๐ˆ๐‚๐„๐’: Helps reduce volatile organic compounds (VOCs) such as formaldehyde, benzene, paint fumes, smoke, and chemical odors - common pollutants from cooking, cleaning products, furniture, renovations, traffic pollution, and cigarette smoke.
  • โœ” ๐‡๐ˆ๐†๐‡-๐๐”๐€๐‹๐ˆ๐“๐˜ ๐€๐‚๐“๐ˆ๐•๐€๐“๐„๐ƒ ๐‚๐€๐‘๐๐Ž๐ ๐–๐ˆ๐“๐‡ ๐Œ๐€๐’๐’๐ˆ๐•๐„ ๐’๐”๐‘๐…๐€๐‚๐„ ๐€๐‘๐„๐€: Made with porous activated carbon pellets engineered to provide a huge adsorption surface area, allowing gas molecules to bind to the carbon instead of lingering in the air you breathe.
  • โœ” ๐”๐’๐„๐…๐”๐‹ ๐–๐‡๐„๐‘๐„ ๐†๐€๐’๐„๐’ & ๐Ž๐ƒ๐Ž๐‘๐’ ๐€๐‘๐„ ๐€๐‚๐“๐”๐€๐‹๐‹๐˜ ๐€ ๐๐‘๐Ž๐๐‹๐„๐Œ: Ideal for spaces with recent painting or renovation, persistent smoke or odors, limited ventilation, or proximity to outdoor pollution sources. Carbon filtration is optional - but essential when gas pollution is present. For Original Smart Air True H13 HEPA Filter for Blast Mini, ASIN B09SK7R7KT.

Use the table below to see how the long-term costs of running a Smart Air Blast Mini compare to other large air purifiers:

AIR PURIFIER MODELESTIMATED ELECTRICITY COST (per year) FILTER REPLACEMENT COST (per year)YEARLY MAINTENANCE COST
Levoit EverestAir$73.58$99.99$173.57
Blueair Blue Pure 211+$57.29$139.98$197.27
Austin Air HealthMate HM400 $164.39$57.90$283.03
AirDoctor 3000$104.63 $178.00$282.63
Smart Air Blast Mini $136.29$149 $366.29
IQAir HealthPro Plus$221$200$421

Bottom line: Is the Blast Mini worth it?

A high-performance, quiet air purifier ideal for classrooms, offices and commercial spaces.

Smart Air has stepped up the game when it comes to CADR (Clean Air Delivery Rate). The Smart Air Blast Mini shows us whatโ€™s possible when you use a high-performance motor in your unit. It outperformed units like the Alen BreatheSmart 75i and the IQAir Healthpro Plus, saving you a couple of hundred dollars on the price.

Unfortunately, the high-performance motor does come with its own cost: the cost of electricity to run it. But the fact that filters can last up to 13 months, will save you money.

Blast Mini MKII Kids Room

All in all, I really like what Smart Air is trying to achieve with the Blast Mini. Itโ€™s quiet yet performed incredibly well in our performance test. Itโ€™s easy to operate, built to last, and has wheels that make it easy to move around, even if it’s heavy.

If you want a hardworking unit and arenโ€™t concerned about smart features, the Blast Mini might be the right choice. This is especially true if you are buying an air purifier for a large space like an office or a classroom, where keeping noise levels down is important to allow people to focus and concentrate.

Before I close this review, I want to mention how rare it is to find a brand that cares so much about its cause. Smart Air not only engineers its air purifiers for maximum cleaning performance but also dedicates their time, money and energy to help more people breathe clean air.

They invest 60% of their profits in educating people about air pollution, 20% in running experimental tests to contribute first-hand knowledge to the air quality community, and the remaining 20% into bringing clean air to people in need around the world.

We need more companies like Smart Air.

SOURCES

We calculated the yearly costs associated with running the Blast Mini 24 hours a day for 365 days using the Department of Energyโ€™s appliance energy calculator. We ran this calculation utilizing the U.S. average utility rate of $0.12/kWh as of May 9th, 2024.

Levoit Core 200S review

Levoit Core 200S Living Room

Levoit is a brand launched in 2016 by Vesync Co., a company originally called Etekcity that began trading in the U.S. in 2011 as an Amazon seller of small home appliances.

If you look through our air purifier reviews, youโ€™ll notice a few different models from Levoit pop up. This is no coincidence. Since 2016, Levoit has proven that high-performing air purifiers, with plenty of smart features, can be produced at a price we consumers love.

The Levoit Core 200S is aimed toward a new generation of mini air purifiers, a trend that the Molekule Mini propelled. Even though the Core 200S outperforms the Molekule without it even being switched on, it still doesnโ€™t do quite enough for us.

These are our opinions

We donโ€™t take bribes.

The lowdown on the Levoit Core 200S


Danny Ashton HouseFresh
โ€œIf you hace a small room and want a unit that is easy to use and looks quite stylish, then the Core 200S will take care of your needs without breaking the bank.”
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Levoit Core 200S Living Room

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):25 minutes
Air purifier technology:3-Stage Filtration (Pre-filter for large particles, main filter for airborne particles, high-efficiency activated carbon filter for odors and gasses)
Recommended room size (4.8 air changes per hour):360 sq. ft.
Clean air delivery rate (CADR):Dust: 274 CFM
Smoke: 284 CFM
Pollen: 287 CFM
Dimensions (in inches / in cm):12.5L x 12.5W x 23.6H in (31.8 x 31.8 x 60 cm)
Weight (in pounds / in kg):6.6 lbs (3kg)
Filter life:6 months
Noise level in decibels (as reported by manufacturer):Speed 1: 28 dB
Speed 2: 36 dB
Speed 3: 46 dB
Speed 4: 54 dB
Electricity consumption in watts (as reported by manufacturer):Lowest fan speed: 0.8 watts
Highest fan speed: 28.1 watts
Estimated running cost (electricity consumption + official filter replacement):$155.43 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.91
Manufacturerโ€™s warranty:2 years
Country of manufacture:China

Donโ€™t want to read the full review? Here are the main pointers from our performance test of the Levoit Core 200S.

What we really like

Itโ€™s not big so can fit snug in the corner of an office or bedroom.
The control panel is easy to navigate.
The app is simple to set up.
The fan sound is barely noticeable on sleep mode.
Itโ€™s incredibly light at just 6.6 lbs.

What we think could be better

Iโ€™d like to see it with an air quality sensor.
Would look cool if it came in different colors.
There are better-performing units from Levoit at a little extra cost. 

The specifications

One reason why Levoit is one of the market leaders is because of its price point. They manage to cover all bases with units for different-sized rooms whilst keeping costs down. The 200S retails at $89.99*, which, compared to other units catering for the same room size like the Medify MA-15 at $129* or Blueairโ€™s Blue Pure 411 at $119.99*, makes this unit very attractive.

HouseFresh Rating:โ˜…โ˜…โ˜…โ˜†โ˜†
Time to clean our test room:61 Minutes
Air purifier technology:Levoit 3-Stage Filtration (Pre-filter for large particles, main filter for airborne particles, high-efficiency activated carbon filter for odors and gasses)
Recommended room size:183 sq. ft.
Clean air delivery rate (CADR):118 CFM
Dimensions (in inches / in cm):12.6H x 8.07W x 8.07D inches (32H x 20.5W x 20.5D cm)
Weight (in pounds / in kg):6.6 lbs (3 kg)
Filter life:6 – 8 months
Noise level (low โ€“ high):Speed 1: 39.6 dB
Speed 2: 43.7 dB
Speed 3: 49.1 dB
Estimated energy consumption:$43.32

Sleek and modern design

If youโ€™ve seen any other units in the Core range like the 300 or 400S, youโ€™ll notice that they nearly all have a cylindrical design. The Core 200S is no different. 

Levoit Core 200S Kitchen Close Up

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

Itโ€™s sleek, itโ€™s modern, and itโ€™s unintrusive, but it still only comes in white and canโ€™t be disguised as anything other than an air purifier.

I know itโ€™s only a budget unit but, for me, Levoit could put a little more effort into making their units more attractive to the eye (hence why Iโ€™ve tried to be a little arty with the pictures).

Levoit Core 200S Front logo 2

Itโ€™s not a bad-looking air purifier by any means. This is only my humble opinion. But if you had a little more money to spend, and design is a key factor, I would go for BlueAirโ€™s Blue Pure 411 or the Medify MA-25.

The 200S comes well packaged. Levoit has ensured that it wonโ€™t suffer any damage at the hands of cavalier delivery drivers when shipped. My only objection is that each component is wrapped in a lot of plastic which isnโ€™t particularly needed. Come on Levoit, think of the turtles!

Levoit Core 200S Filter inside bag logo 1

3-stage filtration technology

The filters and the fan are the key components in every air purifier; bad filters = bad air. Luckily, you don’t have to worry about filter technology when buying a Levoit Core 200S.

Levoit Core 200S Filter logo

Each of Levoitโ€™s units in the Core range comes equipped with a 3-stage filter to maximize the filtration of nasty airborne pollutants nobody wants in their home:

  • Stage one: Nylon pre-filter
    The pre-filter is designed to be the first line of defense. It captures the larger particles that float around your home like dust, hair, pet dander, and lint. Not only is it trapping these particles, but itโ€™s also prolonging the life of the main filter allowing it to concentrate on smaller particles instead of being bombarded by everything.
  • Stage two: Main filter
    This is where the magic happens. Levoit’s Main Filter captures at least 99.97% of particles 0.3 microns in size (one micron is equivalent to one one-thousandth of a millimeter, so yeah, small). This takes care of fine dust, smoke particles, and pollen for all you fellow hay fever sufferers.
  • Stage three: High-efficiency activated carbon filter
    This is the part of the filter that takes care of odors. To remove odors like smoke, cooking smells, and other ominous smells from your home, youโ€™ll need an activated carbon filter thatโ€™s packed full of charcoal to adsorb those VOCs.

Levoit has shown us that they can do filters rightโ€ฆ very right; just check out our review of the Core 600S.

The 200S contains the exact same filter as the 600S, but there is a big difference. This comes down to size rather than the filter itself.

In this smaller unit, the Core filters donโ€™t have nearly the same cleaning ability.

Levoit Core 200S Filter 2 logo

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

Iโ€™m sure you will have worked it out, but I still need to remind you. Remember to remove all the packaging from the filter before turning the air purifier on. If you donโ€™t, youโ€™ll notice two things;

  1. The air in your home wonโ€™t get any cleaner
  2. After a while thereโ€™ll be a strange burning smell coming from the unit, thatโ€™s plastic your smellingโ€ฆ not cool

Controls that are easy to navigate

After youโ€™ve unwrapped everything, youโ€™re pretty much ready to go. Simply plug the 200S into a wall socket and switch it on. The controls are really easy to navigate.

Levoit Core 200S Controls logo 1

When I look at an air purifier, Iโ€™m always thinking about how easy it is to use. Not just changing the fan speed but also navigating its features. Levoit has always been great at setting out its controls to maximize space and usability. 

The 200S keeps this tradition alive.

The circular touch panel is very user friendly and is set out with clear icons for each function. There are no physical buttons that tend to stick over time, and each setting is spaced out enough that youโ€™re not hitting the wrong one by accident.

Hereโ€™s what each one does:

ButtonFunction
IwEU0Wf6NlNtdIpQXUL09xCJJ4B57nV4cDa7zBT4bFjdFDjEy37EP1mb6aFi6znkKR091BeKAjnN2ztB8Eym1L8utq8hUl w6DZ3Turns the air purifier on/off. Press and hold to configure the air purifier.
Y6BQwDGLFblVck31A6RM8Ioj9oBJIH ajSD X8hkeRrf3QB3H uAyL4uQlVjo R6bW Kcilq9GSxu8BKHDTRUVEHq eW2aU5CjiRI rclELa7HX gR1Y87Nf6zScPgOY4erWWp2O6Xhrpmi3dgTurns on, off, or blinks to indicate configuration status.
m33VZAloCr32ZphijJ5AFykGipj3U4owyvHPYMySJlc4X59gOsLREIO3813Gaw8GSg6Cycles through fan speeds: I (low), II (medium), and III (high). Tapping the Fan Speed Button while the air purifier is in Sleep Mode will exit Sleep Mode
v8 Ad4AAMPLKzstXtaWL5Kn5 DzpKo3pZk7MKTnyXrk9suk qO9X2Tch8L0F DZ6UiQaHFTTF3yn3KYoiYgK7YLIsQpNLzz9UYJ7q6Gt6WyFNoUJy744Turns Sleep Mode on. Press and hold for 3 seconds to reset the Check Filter Indicator.
Wmipac7AfpIkoemo6je2Dh2PCO4XpqsECHdVBwdkYsUHMwG8SpG9KikFlxnudHxRPZZ9PerGgO2AIicic9GvsUBiF2RWZsePrU 1zMNCycles through timer options.
aTTl0vnVHYGh3B48d6sFJ0EjDUHVK63At85bqStlkyWulW8FDWvhZ9DdnUoy5D0SRYt7TU9lcMzp76Pdh40fs6 jDXc3kOGzIBKnl4774CI2XoMTIcG3NSuzdkUZHqjLelN1RDfogq9kttn8cATurns the night light on/off.
ADmTn5opZeJFurCKAQrbMwMrXfmgFC7Zhvq3qs4DUEDtVm6wFFdCvhMAKbCR0YBGMa5kG4fy3oocag2XAZBGDpXTFUaLG gNjtWaAaTlEJDqSZkJVzRN0SWGSWKJP4rD7LoqZtHnS hJp9ED gTurns the display off (not including the night light).
Prevents current settings from being changed. Blinks when any other button is tapped to indicate that Display Lock is on.
VjDS5zu4rVv1FnlJP7 B1132ehe7ba1ykmP7X23TAC6HijEkI3KM3x hrhjVD9ta0xLolx1X0fEqrkJ 7oKpfgHq7Wp5nvVBJF4kYUarheTHFLDcbhzAqcNmvwH1KJkEi1PwVpvDoCHmzB86ywLights up when the filter should be checked.  Reset the Check Filter Indicator light by pressing and holding the Sleep Mode button for 3 seconds.

You’re in luck if youโ€™re anything like me and like to use an app wherever possible. 

You can connect the 200S to the Levoit smartphone app through Wi-Fi. Itโ€™s the same app Levoit uses for all their units, so if youโ€™ve already used it on a previous device, youโ€™ll know your way around. If youโ€™re new, donโ€™t worry. The app is easy to navigate and doesnโ€™t take too long to set up.

Levoit Core 200S App logo

Here, you can control fan speed, set the timer, monitor the filter life, and turn the unit on/off, as well as schedule it to come on when needed. Unfortunately, as the 200S doesnโ€™t have the AirSight Plusโ„ข air quality sensor like the 600S, you cannot monitor the air quality in your room from another location.

After testing it with the Android version, I found it handy, but there is no real smart tech. Itโ€™s just a remote control you can take anywhere. Also, they try and sell you stuff on the app, which lets it down for me.

The Levoit Core 200S cleared our test room in 61 minutes

We put every air purifier we buy through the same set of tests. We do this so we can get accurate results of how well it performs in a real-world scenario and also so we can measure it against other units weโ€™ve tested.

Levoit Core 200S Performance test logo 2

When it comes to air cleaning performance, the test is simple: we placed the Core 200S in our 728 cubic ft test room and filled that room with incense stick smoke so we could measure how long it takes this specific unit to clear the room of those contaminants when running at its highest fan speed.

Hereโ€™s what we found out about the Core 200S:

As you can see from the graph, it took 61 minutes for the Core 200S to clean the air in our testing room.

Air cleaning performance compared

Because of the size of the 200S, we were never expecting it to outperform our top-tested units like Levoits powerhouse 600S or Blueairโ€™s Blue Pure 211+ as theyโ€™re in completely different leagues. So we would need to compare it to similar-sized units.

Looking at the 200S side by side with similar air purifiers shows that this isnโ€™t a bad-performing little unit, especially for the price.

Noise levels test results

As for noise, Levoit is pretty good at keeping their purifiers to a reasonable level. The Core 200S at its highest level hits 49.1 dB and 39.6 dB at its lowest. This means noise levels are pretty average, which is not a bad thing in itself.

The cost to run the Levoit Core 200S: $95.3 per year

1. Electricity costs = $43.32

When buying an air purifier, you have to consider the extra costs that come with it. One is how much it costs to plug it in and use it daily. With rising energy prices hitting households, it’s paramount that clean air in your home isnโ€™t going to make a dent in your wallet.

Luckily, most air purifiers on the market are specially built to be energy efficient. Energy Star is a company that tests each unit for efficiency and offers a seal of approval to appliances that pass their tests which the 200S wears with pride.

We used the latest average energy prices reported by the U.S. Bureau of Labor Statistics Department to calculate the annual cost of using the Core 200S daily. On full power, this unit pulls 28.4 watts which will cost you around $43.32 annually.

This is okay for a unit of this size but not amazing. You are unlikely to have your air purifier on 24 hours a day, all year round, so it shouldnโ€™t cost you that much. 

2. Filter costs = $51.98

Another running cost to consider is replacing the filters in the unit.

Air purifier filters work best when they are brand new. Over time they begin to get blocked with all the particles theyโ€™re trapping and become less efficient. To counter this, you need to replace the old filters with new ones to keep efficiency high.

Different units use filters with different life spans, so itโ€™s good practice to check how often youโ€™ll need to replace them when looking to purchase an air purifier.

The filter life for the 200S is 6-8 months, depending on how often you use it. Donโ€™t worry about checking the filter every day, thereโ€™s a light indicator on the unit which will tell you when yours needs replacing.

A new filter will set you back around $25.99, which is average for purifiers of this size. You can purchase filters for this model made by different brands, but we canโ€™t vouch for their performance. 

Levoit Core 200S-P Air Purifier Genuine Replacement Filter, AHAM VERIFIDE, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Removes Smoke, Odors, Allergens, Core 200S-RF, 1 Pack
Technology
3-in-1 True HEPA, High-Efficiency Activated Carbon, Core 200S-RF
More information
Price
$21.34
Levoit Core 200S-P Air Purifier Genuine Replacement Filter, AHAM VERIFIDE, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Removes Smoke, Odors, Allergens, Core 200S-RF, 1 Pack
Technology
3-in-1 True HEPA, High-Efficiency Activated Carbon, Core 200S-RF
More information
Price
$21.34


Bottom line

At the end of the day, Levoit is a great brand to invest in when it comes to air purifiers. They have the technology, the performance power and, to top it off, a great price point.

Levoit Core 200S Close up logo

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

While the 200S showcases many things that make Levoit units great, itโ€™s hard to see why you would choose this air purifier over other Levoit Core models. I get that they want a unit in their line-up to reflect the โ€œmini purifierโ€ trend, but looking at the performance levels, you could get so much more out of the Core 300S for a little extra cost.

This unit would fit your home if you have a small bedroom or office with little room to place a larger unit. It connects to the Levoit app so can be controlled from anywhere and doesnโ€™t cause a nuisance with noise levels. 

Any air purifier with these features and the reliability of the Levoit brand name at under $100 should never be sniffed at.


SOURCES

We calculated yearly costs associated with running the Levoit Core 200S for 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of April 2024.

Molekule Air Mini review โ€” Will you regret buying it?

Molekule mini review

Molekule is relatively new to the world of air purifiers. Dharendra Yogi developed a photo-voltaic technology called PECO or photoelectrochemical oxidation which is meant to be able to eliminate pollutants at a molecular level instead of using mechanical filters that trap pollutants like the rigorously tested, scientifically proven, industry-standard HEPA.

In the early days, it got a ton of great press with awards from Popular Science, SXSW, and even a design award from Fast Company.

Since then, the press hasnโ€™t been so kind, with both Consumer Reports and The Wirecutter giving poor reviews of their units. In 2019, after a complaint from Dyson, the Better Business Bureau National Advertising Division recommended that Molekule stop 26 advertising claims, including the discontinuance of superiority claims vs. HEPA filters. Molekule removed all these false advertising claims from their marketing materials. 

You can see this by checking their corporate website from 2018 on Archive.org and comparing it with their current homepage at Molekule.com. You will notice that many of the previous scientific claims are now totally missing from the website.

Following this controversy, itโ€™s safe to say I wasn’t particularly excited about any of the air purifiers from Molekule. Still, itโ€™s only fair that we test these units in the same way we test all air purifiers at HouseFresh. 

As always, we paid with our own money for the Molekule Air Mini to avoid any biases and we donโ€™t have any existing relationships with Molekule or any air purifier manufacturer. Our ultimate goal is to move beyond the marketing jargon to share our experience using these units in our home, running our own tests on them so we can compare them with other available units on the market.

We put the Molekule Air Mini through a three-stage test we designed to evaluate the performance of air purifiers:

how we test
How we test air purifiers

Read our full testing methodology.

Right, let’s get to it.

The lowdown on the Molekule Air Mini


danny

“The Molekule Air Mini is the worst air purifier I have tested. It uses a ton of energy, is painfully loud, and takes forever to clean the air. With so many great units on the market, there is no reason to buy this air purifier.”

โ€” Danny Ashton, Founder & Senior Writer

Molekule Air Mini Living Room

PRICE on amazon PRICE on EBAY

On a rush? Here are the main pros and cons you need to keep in mind before considering investing your money on the Molekule Air Mini.

What we really like

When I forget everything else, I can say that the Molekule Mini is a good-looking gadget
Fairly simple touchscreen that works
Small, portable size
PECO is an interesting technology โ€” maybe there are some health benefits beyond removing particulate matter efficiently, but I fail to see an obvious one

What we think could be better

I found the performance-to-price ratio aligned with what The Wirecutter found โ€” even a very cheap sub $100 HEPA unit will perform better
The Android app just didnโ€™t connect
It uses a lot of electricity, compared to other units, such as the Levoit Core 300S
It is very loud, it was uncomfortable for me at the highest level
High filter costs mean you would need to spend $199.98 to ensure your Molekule Air Mini is cleaning the air efficiently

The specs

This Molekule Air Mini has an RRP of $329.99.

It doesnโ€™t have a published CADR with is annoying, but not to worry as we will test this unit in the same room we test all our units so we can compare its air cleaning performance with similar units that do have a published CADR. Molekule suggests the Air Mini is suitable for rooms size of 250 square feet so we would assume it has a CADR of 160-180 to be able to clean the air in the room four times in an hour. 

As a fan/air purifier, we would expect a much lower CADR score for the price, and as expected, this unit is really designed for smaller spaces or those not needing to clean a lot of air quickly. Although at this budget, Iโ€™m expecting a better performance than Honeywell HPA300 or the Levoit Core 400S which are both available for less money.

HouseFresh rating:โ˜…โ˜†โ˜†โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):53 minutes
Air purifier technology:PECO Air Purification Filter Technology
Recommended room size (4.8 air changes per hour):Up to 250 sq. ft.
Clean air delivery rate (CADR):Not available
Dimensions (in inches / in cm):12H x 8.26W x 8.26D inches (30.48H x 21W x 21D cm)
Weight (in pounds / in kg):11.8 lbs (5.35 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 35.6 dB
Speed 2: 38.3 dB 
Speed 3: 46.4 dB
Speed 4: 57.8 dB
Speed 5: 68.2 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0 watts
Speed 1: 15.38 watts
Speed 2: 16.78 watts
Speed 3: 18.7 watts
Speed 4: 24 watts
Speed 5: 49.62 watts
Estimated running cost (electricity consumption + official filter replacement):$275.66 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$6.10
Manufacturerโ€™s warranty:2 years
Country of manufacture:U.S. and Malaysia


The Molekule Air Mini looks the part

You can totally understand why this device has won design awards

The Molekule Air Mini is small, cute, and wouldnโ€™t look out of place in any high-end modern-designed home. 

Molekule Mini Close Up

The size is something that really stands out when compared to traditional โ€œmechanical air filtersโ€ which are often much bigger, as filter size directly equates to their performance. The assumption is that the PECO technology is able to achieve similar efficacy but without the requirement for large filters that you find with HEPA and activated charcoal. 

You can see a big difference in size when we compare it with the Dyson HP04, and you could easily hide a unit of this size without taking over the room. 

Molekule Mini vs Dyson HP04

Similar to the Levoit Core series of air purifiers, the Molekule is a cylindrical shape that you turn to reveal the PECO filter unit.

Itโ€™s worth noting that the bulk of the filtering doesnโ€™t happen inside the filter but instead, it uses UV-A light that interacts with the chemicals inside the filter to destroy pollutants. 

Molekule Mini Top Down

The filter was easy to remove, as you can see in the video below:

The controls are easy enough to use

If buttons arenโ€™t your thing, the Molekule Air Mini also comes with app support

The Molekule Air Mini comes with touchscreen buttons on the top of the unit, making them a little hard to see in bright light. That said, the controls are easy to use.

If buttons arenโ€™t your thing, it also comes with app support for Google Play and Apple. I only got a chance to test the Android version of the Molekule app. 

Similar to the Dyson Link App, you need to sign up for an account before you can use it. Getting my account set up and the app installed was simple – the challenge started when I tried to connect Molekule Air Mini…

Molekule Mini App

Iโ€™m by no means a technophobe and have a solid Wi-Fi connection around the house, but I just couldnโ€™t get the air purifier to connect to my Wi-Fi, rendering the app pretty useless in my experience. 

I saw that I wasn’t alone when I looked at the Google Play reviews. The app has many reviews complaining about this very issue:

Molekule Air Puriifier App Review Android

 

A quick search through app user reviews on Apple’s App Store made it clear that this is not an isolated issue or a problem with the Android app:

Molekule Air Puriifier App Review iPhone

Considering the price of the Molekule Air Mini, itโ€™s unfortunate that the app is failing the users and that these smart features are not working as well as they do for other air purifier brands.

That said, I was still able to use the unit using the touch buttons, but itโ€™s a little concerning that a company supposedly at the forefront of a new type of technology (PECO) canโ€™t create an app that works.

A non-mechanical filter: PECO Technology

This is the first non-mechanical filter that we have reviewed here at HouseFresh. The reason is fairly simple; we generally avoid new technologies that have not had the level of peer review analysis compared to HEPA and activated charcoal. 

Mechanical filters have been in use since WW2, and there is a ton of scientific analysis and performance testing that we can trust. In a review of the academic literature, the team at Reading University showed the effectiveness of different filter technologies: 

Air purifier filter technology

Filtration and adsorption stood as clear winners for particles and VOCs of the filter technologies analyzed.

Itโ€™s worth noting that PECO was not included in the Reading University study, but it was included in an MIT study and was shown to be less effective than Adsorption when dealing with VOCs.

Molekule Mini Filter PECO

Over the years, there have been numerous air purifier technologies that have been brought to market with the hype that their technology is far better than mechanical-based filters, but they often lead to disappointment. Such as the Sharper Image Ionic Breeze that promised so much with its electrostatic precipitation but failed to do anything apart from releasing small amounts of ozone (if you didnโ€™t know, ozone = bad). 

So you can understand that I might be cynical of another new technology that promises:


โ€œIt destroys pollutants regardless how small, incl. those 1000x times smaller than what HEPA can collect.โ€

– Molekule*

*Taken from the Molekule.com homepage from 2018 that has now been removed after the complaint from Dyson to the BBB

But itโ€™s totally true that HEPA systems are pretty much useless against VOCs, chemicals and odors. This is the reason why the vast majority of air purifiers use other technologies like activated carbon (adsorption). These have been shown in many peer-review papers to be highly effective, and activated charcoal has been in use since the Egyptian era. The downside to activated carbon is that you need a lot to make a big difference which is why the $1000 IQAir Health Pro Plus has 15lbs of carbon pellets as part of its filtration system. 

PECO promises that it can achieve better results without the downsides of size and weight that come with HEPA filters and with the added benefit that it destroys pollutants vs. just trapping them, so we can also assume it will require a less costly filter replacement.

Molekule Mini Filter 1

Sounds too good to be true? 

Well, let’s find out.

The Molekule Air Mini cleared our test room in 53 minutes

The Molekule Air Mini needed almost an hour to remove all the pollutants from the air in our small testing room.

Molekule Mini Performance Test

At HouseFresh, we test all our units in the same room of 728 cubic ft, which is my home office. The reason we use this room is so we can compare the performance of different air purifiers in the same environment.

Before I take you through the results of my test, let me walk you through the process:

  1. I burnt a powerful incense stick to create smoke pollutants.
  2. Once the room is filled with pollutants, I switch the Molekule Air Mini to full speed.
  3. I used the Purple Air Indoor sensor to evaluate how long it takes the air purifier to remove PM1, PM2.5, and PM10 pollutants from the air.

We clocked the Molekule Mini in 53 minutes, which is not impressive for the price nor lives up to the expectations generated by the cool looks. 

Air cleaning performance compared

Frankly, we expected more. Especially considering there are much more affordable units in the small-sized range that can outbeat the Molekule with ease. 

With a similar room coverage as reported by Molekule, the Levoit Core 300 (219 sq. ft.) cleaned the air in our test room 13 minutes faster and can be found at under $100. Or the Smart sibling Core 300S, which only took 32 minutes, was a whopping 21 minutes quicker. 

Meanwhile, the similarly priced but more powerful Blueair Blue Pure 211+ outperformed the Air Mini by no less than 43 minutes. 

The unit was, in fact, 10 minutes apart from being below the cleaning speed average. The data speaks for itself.

Based on this performance, I couldnโ€™t, in my right mind, recommend this air purifier to anyone, as incense smoke is a fairly minor pollutant when compared to significant outside pollution or wildfire smoke.

Noise levels test results

But we didn’t just test the performance in terms of cleaning pollutants from the air. We also tested noise levels, and I’ve got to say, here it’s where it gets worse.

At the highest speed, the sound level is high at 68.2 dB, which compares poorly to competitors, with the Blueair Blue Pure 211+  having a maximum of 56 dB. 

To put things into perspective, the American Academy of Audiology considers 70 dB to be Loud noises and the CDC establishes 70 dB as the threshold for noises capable of producing hearing damage. The Molekule is not at all far from that.

In comparison, many of the quiet air purifiers we tested have a maximum of 55dB and some run as low as 49dB at the highest speed!

Feel free to have a listen yourself, check out the video below:

It really did sound like a jet plane and it makes me think that they are trying to use extra power to push more air through the unit to overcompensate for filters that are not effective at removing pollutants.

According to our testing, the Molekule Air Mini has some of the highest values for both electricity usage and noise levels generated, which means significant costs and negative externalities to consider when looking at use 24/7 over the long term. 

The cost to run a Molekule Air Mini: $275.66 per year

The cost to run an air purifier is a significant concern as you will want to run your air purifier on most of the time if you have any issues with your outside air. So we always want to consider the price of the unit at its highest speed 24/7.

1. Electricity costs = $75.68 per year

As always, I tested the Molekule mini with one of my trusty power meters:

  • Speed 1: 15.38 watts
  • Speed 2: 16.78 watts
  • Speed 3: 18.7 watts
  • Speed 4: 24 watts
  • Full power: 49.62 watts

This means that running a Molekule Air Mini in your room 24/7 could cost up to $75.68 per year in electricity bills only calculating with the average energy prices in the U.S. as reported by the Bureau of Labor Statistics, assuming you’d need to run the unit for 24 hours per day 365 days per year.

2. Filter costs = $199.98 per year

Another long-term cost to consider is regular filter replacements. With mechanical filter technology like HEPA, the filters get full of pollutants and if you donโ€™t change them, they will become less effective. 

But, I wasnโ€™t sure if this also applied to PECO. 

Looking at their site, I see that they recommend changing filters every 6 months to make sure that you are using the latest technology and to avoid performance issues with dirty filters.  

The Molekule air has filters available for $99.99* and they suggest replacing them every 6 months, so a filter replacement cost of $199.98 per year or $160 as part of a subscription. This is on the high side when compared with Levoit Core 400S, which has a HEPA and Activated Charcoal filter for $49.99 that also needs replacing every 6 months, so a $100 per year. It is a little less than the $250-300 that the IQAir Healthpro Plus requires on a yearly basis but that is spent over 3 different filters with heavy activated carbon filters that donโ€™t come cheap.


Bottom line

Overall the running costs for the Molekule Air Mini per year, assuming you change the filters every 6 months and use it 24/7 as recommended, will be $264.10 per year, which is much higher than competitors that perform significantly better at keeping a room clear of particle-sized matter of PM1.0ug/m3, PM2.5ug/m3 and PM10.0ug/m3 which have been proven to be the worst type of particles to breath in for human health.

On top of this, its performance is extremely poor across the board to the point where even the very cheapest of HEPA filter-powered units, like the Levoit Core 300 or the TaoTronics AP003, perform much much better but a fraction of the cost.

2 Molekule Mini.jpg 2

Donโ€™t get caught up in the hype โ€“ look elsewhere for a good air purifier.

SOURCES

We calculated yearly costs associated with running the Molekule Air Mini 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

Smart Air Sqair review

Smart Air S Corner

The creators of the Smart Air Sqair have an interesting backstory.

Back in 2013, the founder of Smart Air (Thomas) was working on his PhD in Beijing and, affected by the terrible outdoor pollution in the area, he looked into buying an air purifier. He was shocked when he saw how much air purifiers were retailing for. Instead of buying a pricey device, he created his own DIY purifier using just a fan and a filter

Realizing the potential, Thomas got together with some friends to start his own company focusing on no-nonsense, affordable air purifier DIY kids: a HEPA filter, a box fan and a strap to tie it all together. Smart Air also started to host workshops all over Beijing, showing attendees how to build their own DIY air purifiers.

smart air 2013

Since then, they have perfected their HEPA filters and started developing their own air purifier models. Their main goal remains the same from day one: excellent air cleaning performance without the high price tag that most models come with.

I like sharing this story whenever I discuss Smart Air because I think their ethos is remarkable and rare in this day and age. Their mission is one of the reasons why so many consumers are die-hard fans of Smart Air, and you will often find them recommending the Blast Mini or the SA600 to others on social media platforms.

This Smart Air Sqair air purifier only reached the U.S. in 2020. It is Smart Air’s response to small units like the Levoit Core 300 or the Winix A230.

As with all the air purifiers we review here at HouseFresh, we bought the Sqair with our own money to ensure we can be unbiased and completely transparent about what it’s like to have this device in our home. But, of course, we didn’t stop there.

We put the Smart Air Sqair to the test, completing a series of experiments to assess its particle removal capabilities, its energy consumption levels and the noise it generates. You can read more about each test below.

how we test
How we test air purifiers

Read our full testing methodology.

It is worth clarifying that this review was written AFTER we conducted all these tests. You can rest assured I didn’t just grab some numbers off an Amazon listing or Smart Air’s website like most other review sites would.

Right, enough with the intro.

The lowdown on the Smart Air Sqair

Danny Ashton HouseFresh
“The Smart Air Sqair might be the perfect option for those looking for a stylish air purifier with solid air cleaning performance for less than $200.

This unit surprised us in our performance tests and quickly found a permanent place in our home.”
โ€” Danny Ashton, HouseFresh Founder & Senior Writer

Smart Air S Close up

$189.95 AT SMART AIR U.S. ยฃ132.00 AT SMART AIR UK

These are my main pros and cons suitable for even the lightest of skim readers:

What we really like

Smart Air’s ethos. Other air purifier manufacturers have been selling overpriced machines for years, but Smart Air drew a clear line.
Powerful mechanical filtration thanks to a high-quality H12 HEPA filter and an efficient fan.
Long-term cost savings for both electricity usage and filter replacements.
Beautifully designed to fit into even the most stylish of homes. I particularly like the European Beechwood legs.

What we think could be better

It does not have smart features or an auto-mode that automatically adjusts fan speeds, which is common in modern air purifiers. That said, these features would have an impact on the price of this air purifier without necessarily improving its air cleaning performance.
It does not come with an activated carbon filter as standard, so you need to buy one separately if you want the Sqair to help with VOCs and odors.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):32 minutes (without carbon)
Air purifier technology:H12 HEPA and optional activated charcoal filter
Recommended room size (4.8 air changes per hour):163 sq. ft. 
Clean air delivery rate (CADR):Dust: 127 CFM
Smoke: 105 CFM
Pollen: 144 CFM
Dimensions (in inches / in cm):13H x 13W x 14.3D inches (33.02H x 33.02W x 36.32D cm)
Weight (in pounds / in kg):10.1 lbs (4.58 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 35.5 dB
Speed 2: 49.1 dB
Speed 3: 58.2 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0 watts
Speed 1: 5.6 watts
Speed 2: 19.7 watts
Speed 3: 39.4 watts
Estimated running cost (electricity consumption + official filter replacement):$120.10 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$1.42
Manufacturerโ€™s warranty:1 year
Country of manufacture:China

The best Smart Air Sqair feature: it is compact and stylish yet powerful

Excellent air cleaning speed that will look good in your home.

The Smart Air Sqair hides a powerful motor that allows it to move air through the filters at the same speed as much larger (and bulkier) air purifiers.

I will walk you through our particle removal test later down in the review, but let me mention here how the Sqair completed the test 10 full minutes faster than the much more expensive Mila and 15 minutes faster than the popular Levoit Core 300.

It truly surprised me with its air cleaning power because it looks like a small stool. I can’t begin to understand how Smart Air managed to fit in such a powerful motor inside this cute little thing.

Elegant design that will stand out for the right reasons

โ€œOh wowโ€ฆ This one is cute!โ€ was the first thing my wife said when the Smart Air Sqair arrived.

Smart Air S Design

My wife is not normally so positive about the many air purifiers I bring to our home, but she immediately fell in love with the design of the Smart Air Sqair. This might not seem like an important point (and it’s definitely subjective), but she spends a lot of time choosing furniture and dรฉcor for the house, so she is a tough critic.

Another element she liked was the lack of lights on the control panel. This makes the Sqair a great option for a bedroom, as it won’t disturb your sleep โ€” this is where we have kept this air purifier since the moment I finished running all the tests:

Smart Health S Top down logo

But it’s not just about this air purifier fitting into a trendy home.

Another design aspect worth mentioning is that the Smart Air Sqair is a fairly small unit. It doesnโ€™t take up too much space and could easily be placed in small rooms or tight spaces.

You can see here how small it is compared to the Levoit LV-PUR131 (which has the same size of units such as the Levoit Vital 200S, the Winix C545 and the Coway Airmega 150) and the dirty laundry basket in our room.

Levoit LV PUR131 VS Smart Air Sqair Air logo

Undoubtedly, this little unit looks a hell of a lot better than your โ€œnormalโ€ air purifier. Its cute, short body and Beachwood legs blend into the room instead of looking like something you would find in a science lab.

Speaking of the legs, you will find them packed separately inside the box and must be screwed on before switching the unit as you would with the legs of an IKEA chair:

Smart Health S Box setup logo

I experienced one build quality issue when screwing the legs: one of the screws had become loose, so I had to re-screw it before securing the final leg. Itโ€™s definitely a minor thing, but I’m mentioning it here to make the Smart Air team aware of it.

Smart Health S Missing screw issue logo

The control panel of the Sqair is incredibly straightforward. You get three fan speed settings and can switch between them with a giant dial that sits at the top of the device. That’s as simple as it gets!

Smart Health S Controls logo

Now, if you are looking for smart features, this is not the right air purifier for you.

I personally like the simplicity, but I also appreciate that there are cases where having smart features such as auto-mode makes sense. For example, I wouldn’t want to use the Sqair in my kitchen as I would rather not have to drop everything while cooking just to set the dial on three or bring it back down to one. But that could be just me.

However, there is a reason why this unit doesn’t have such features. The team at Smart Air thinks auto-features are a waste of time, as built-in air quality monitors could be inaccurate, and air purifiers might not thoroughly clean the air before the auto-mode switches them back to speed one.

Just high-quality filters and a powerful fan

The Smart Air offers H12 HEPA filtration with an optional activated carbon filter.

This air purifier is one of the simplest units I have come across. As you can see in the video below, itโ€™s simply a large fan combined with a HEPA filter housed in plastic. 

The Smart Air Sqair comes with an H12-type HEPA as standard rather than the trendier medical-grade H13 HEPA. The reason for this is airflow.

H12 allows more air to pass through the filter, meaning that the air purifier can clean more air without working as hard. This not only makes it more efficient at cleaning the air but also reduces the amount of electricity it consumes.

That said, you can choose to get your Sqair with a H13 filter, but you need to be aware that using a stronger grade of HEPA will reduce the airflow.

Tip

The HEPA filter for the Sqair arrived wrapped in plastic packaging to ensure it doesn’t start filtering air until you use it.

Make sure to remove the filter from the bag BEFORE you switch on the air purifier.

The Smart Air Sqair comes with a HEPA filter, but you will need to buy the activated carbon filter separately (for an extra $29.99).

Smart Health S Carbon filter logo

Most manufacturers include both HEPA and activated carbon as standard, partly because it makes for a more well-rounded air-cleaning solution and partly because it will keep you buying more filters.

But Smart Air doesn’t include these filters as standard because the truth is that not everyone needs an activated carbon filter, and using one will reduce airflow.

I highly recommend you buy the activated carbon filter only if you want to use your air purifier to remove unwanted smells, gases and VOCs, as HEPA won’t be able to help with that.

Activated Carbon Filter logo

Installing the activated carbon filter is super easy. There are no fiddly, twisty mechanics or screws to find the right tool for. You just need to follow three easy steps:

Step 1: Turn it upside down and remove the bottom cover by pressing in the sides and lifting.

Smart Health S Open bottom logo


Step 2: Remove the filter from the bag and place it in the unit. Donโ€™t force it, it will sit comfortably.

Smart Health S Place filter logo

Step 3: Secure the bottom cover back on top of the filter, and turn the device upside down.

Smart Health S Close bottom logo

Told you it was easy. Want to get one for your Sqair, too? Here you go:

Smart Air (aka Smart Health) Sqair Genuine Replacement Carbon Filter (1 Pack) |Verified VOC & Odor Reduction| Activated Carbon Pellets for Smoke, Chemical Fumes & Pet Odors
  • โœ” ๐•๐„๐‘๐ˆ๐…๐ˆ๐„๐ƒ ๐•๐Ž๐‚ & ๐Ž๐ƒ๐Ž๐‘ ๐‘๐„๐Œ๐Ž๐•๐€๐‹: Scientifically tested with an Industrial Scientific MX6 iBrid gas detector, this activated carbon filter has been proven to reduce harmful VOCs such as formaldehyde and benzene from cigarette smoke and household sources. Ideal for homes concerned with chemical or smoke exposure.
  • โœ” ๐†๐„๐๐”๐ˆ๐๐„ ๐’๐Œ๐€๐‘๐“ ๐€๐ˆ๐‘ ๐’๐๐€๐ˆ๐‘ ๐‘๐„๐๐‹๐€๐‚๐„๐Œ๐„๐๐“ ๐…๐ˆ๐‹๐“๐„๐‘: Engineered for a precision fit in the Smart Air Sqair Air Purifier, ensuring proper airflow and maximum adsorption efficiency. Maintains your purifier's tested clean air delivery rate for gas pollutants.
  • โœ” ๐‡๐ˆ๐†๐‡-๐’๐”๐‘๐…๐€๐‚๐„-๐€๐‘๐„๐€ ๐€๐‚๐“๐ˆ๐•๐€๐“๐„๐ƒ ๐‚ARBON ๐๐„๐‹๐‹๐„๐“๐’: Each pellet enabling strong adsorption of odor molecules, toxic gases, and VOCs. Designed in a durable honeycomb mesh for stable air distribution and long-term performance.
  • โœ” ๐ƒ๐”๐€๐‹ ๐…๐ˆ๐‹๐“๐‘๐€๐“๐ˆ๐Ž๐ ๐…๐Ž๐‘ ๐‚๐Ž๐Œ๐๐‹๐„๐“๐„ ๐€๐ˆ๐‘ ๐๐”๐‘๐ˆ๐…๐ˆ๐‚๐€๐“๐ˆ๐Ž๐: When paired with the True H13 HEPA filter, this carbon layer captures odors, fumes, and gases while allowing the HEPA to focus on fine particles. Together, they deliver cleaner, fresher, and odor-free air across your living spaces.
  • โœ” ๐“๐„๐’๐“๐„๐ƒ ๐…๐Ž๐‘ ๐‚๐‹๐„๐€๐๐„๐‘, ๐‡๐„๐€๐‹๐“๐‡๐ˆ๐„๐‘ ๐€๐ˆ๐‘: Independently lab tested for VOC reduction under controlled conditions, including cigarette smoke and formaldehyde. Helps reduce throat irritation, dizziness, and odors from volatile organic compounds.

The Smart Air Sqair cleared our test room in 32 minutes

As with every air purifier we review here at HouseFresh, I tested the Sqair in our 728 cubic ft. test room (a fairly small home office) and used an incense stick to create airborne pollutants. I then used two different Purple Air indoor sensors (Touch and Zen) to track how quickly the Smart Air could reduce PM1 pollutants down to zero while running at its top fan speed.

The Smart Air Sqair removed all PM1 pollutants in 32 minutes.

Air cleaning speed, compared

Let’s put these results into perspective by comparing the Sqair to other units we have tested. So, hereโ€™s how it compares to other air purifiers in terms of noise output, air cleaning speed and initial price. 

AIR PURIFIER MODELSOUND LEVEL AT LOWEST SPEED (dB) SOUND LEVEL AT TOP SPEED (dB)TIME TO CLEAN OUR TEST ROOMPRICE
Shark HP10236.1 dB52.2 dB58 minutes$179.99
Coway Airmega 15035.2 dB55.6 dB38 minutes$189.99
Levoit Vital 200S38.3 dB57.7 dB23 minutes$189.99
Winix A23039.1 dB57.8 dB40 minutes$99.99
Smart Air S35.5 dB58.2 dB32 minutes$179.95
Mila37.5 dB59.2 dB38 minutes$419.99

Noise levels, compared

When you compare noise levels generated by the Sqair to other units, itโ€™s perfectly average. Yes, youโ€™ll hear it when itโ€™s on full power, but it wonโ€™t command the whole room.

Now, I always explain that sound can be subjective, so I shot a video so you can listen to the noise levels it generates:

The cost to run a Smart Air Sqair: $114.98 per year

The costs associated with running air purifiers in the long term are usually overlooked, but they are an important factor to consider โ€” especially if youโ€™re planning on actually using your air purifier regularly enough to keep the air in your home clear of pollutants.

Smart Air S Front

1. Electricity costs = $41.00

As part of my testing, I used a power meter to measure how much electricity in watts the Smart Air Sqair pulls at each fan speed.

  • Power 1 – 5.6 watts
  • Power 2 – 19.7 watts
  • Power 3 – 39.4 watts

The team at Smart Air has created something very special with the Sqair, a good-looking air purifier with a decent CADR that also uses less energy than most other similarly sized units. 

AIR PURIFIER MODELENERGY CONSUMPTION AT TOP SPEED (watts)TIME TO CLEAN OUR TEST ROOM
Coway Airmega 15031.55 watts33 minutes
Smart Air S39.4 watts25 minutes
Mila38.32 watts35 minutes
Levoit Vital 200S44.55 watts18 minutes
Winix A23045.6 watts35 minutes

The energy savings might be down to the fact that the Smart Air Sqair uses a H12 filter instead of a H13, no-pre filter, and (what I assume to be) a more efficient fan.

2. Filter costs = $73.98

Another long-term cost to consider is filter replacement. With mechanical filter technology like HEPA, the filters get full of pollutants and need to be replaced regularly.

The Sqair has filters available for $36.99, and they suggest replacing them every 6 months. Running a Sqair will cost you $73.98 per year on HEPA filters alone.

Here is how that compares to other units:

Smart Air (aka Smart Health) Sqair Genuine Replacement HEPA Filter | High-Efficiency Particle Filter for Dust, Smoke & Pollen | Compatible Genuine HEPA Replacement Filter (1 Pack)
Smart Air (aka Smart Health) Sqair Genuine Replacement Carbon Filter (1 Pack) |Verified VOC & Odor Reduction| Activated Carbon Pellets for Smoke, Chemical Fumes & Pet Odors
Technology
Smart Health S HEPA Filter
Smart Health S Activated Carbon Filter
More information
Price
Price not available
$29.99
Smart Air (aka Smart Health) Sqair Genuine Replacement HEPA Filter | High-Efficiency Particle Filter for Dust, Smoke & Pollen | Compatible Genuine HEPA Replacement Filter (1 Pack)
Technology
Smart Health S HEPA Filter
More information
Price
Price not available
Smart Air (aka Smart Health) Sqair Genuine Replacement Carbon Filter (1 Pack) |Verified VOC & Odor Reduction| Activated Carbon Pellets for Smoke, Chemical Fumes & Pet Odors
Technology
Smart Health S Activated Carbon Filter
More information
Price
$29.99

When it comes to long-term costs, the Smart Air Sqair is not the cheapest air purifier to run 24/7 but close: the S is the second cheapest option when comparing its running costs to those of units in the same price range or the same size:

AIR PURIFIER MODELESTIMATED ELECTRICITY COST (per year) FILTER REPLACEMENT COST (per year)YEARLY MAINTENANCE COST
Coway Airmega 150$48.12$49.99$98.11
Smart Air S$41.00$73.98$114.98
Winix A230$69.55$49.99$119.54
Levoit Vital 200S$67.95$59.99$127.94
PuroAir HEPA 14 240$57.35$96.00$153.35
Mila $58.45$150$208.45

Bottom line: Is the Smart Air Sqair worth it?

Smart Air is a brand on a mission and with the Sqair, theyโ€™re showing us they mean business. 

By taking a simplistic approach to air purification, they have achieved amazing air cleaning performance without the energy consumption and filter replacement costs you can expect from competitors. 

Its a good device for smaller spaces and benefits from the simple controls and attractive design.

Smart Air S Fireplace

The Smart Air Sqair is not the right air purifier for you if you care about smart features and are looking for an air purifier with a fancy touchscreen or an on-board air quality sensor. If those are the kind of things you want in your device, then you should check out my review of the Levoit Vital 200S.

However, if you are on the market for a good looking device that will blend into the decor of your home and STILL be able to clean the air as efficiently as units priced upwards of $200, then the Sqair might just be the thing. Just remember to buy the additional activated carbon filter if you are wanting to rid your home of unwanted smells and VOCs.

SOURCES

We calculated yearly costs associated with running the Smart Air Sqair 24 hours a day, 365 days per year, utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

Blueair Blue Pure 211+ review

Blueair Blue Pure 211 Front Room

I will review one of the most popular air purifiers of the last few years: the Blue Pure 211+ from Blueair.

Since we started housefresh.com, we have tested and reviewed a few Blueair air purifiers.

Looking at Google Trends to gauge popularity, we can see that the 211+ first arrived in 2016 and reached its peak popularity in 2021 โ€“ too late for a review?

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I donโ€™t think soโ€ฆ

Although Blueair has now replaced the 211+ with the new Blue Pure Max 211i, many people are still looking to buy a 211+ as itโ€™s still widely available, and many others own a 211+ and are wondering if itโ€™s time to upgrade it, so this review is for them.

As always, we bought the Blue Pure 211+ with our own money. I paid ยฃ110 for our 211+ in early 2022, but you can find the 211+ on Amazon today for $319.99 โ€” or you can get the latest Pure Max 211i in the U.S. for $349.99.

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In this review, I will compare the Blue Pure 211+ to the more than 100 air purifiers we have tested at HouseFresh, based on our first-hand data on air cleaning performance, sound generation, energy efficiency, real-life user experience and long-term running costs. If you want to know more about how we test our air purifiers, please read this article or watch this video.

The lowdown on the Blue Pure 211+

Danny Ashton HouseFresh

โ€œWhen I first tested the Blue Pure 211+ in 2022, I was blown away by its performance as it was a fairly cheap device yet could clean air very effectively.

As our new data shows, even when running at speed 2, the 211+ has an estimated CADR of around 230 cfm, and at speed 1 you will get the same performance as the Levoit Core 300 running at top speed (140 cfm).

So why do Blueair air purifiers never make it on my list of the best air purifiers?

Well, the Blueair Blue Pure range uses an ionizer process to help clean the air, which you will find in devices from Coway, Winix and Alen.

However, and unlike Coway, Winix and Alen, with the Blueair 211+ the user has no way of switching off this function. “

โ€” Danny Ashton, HouseFresh Founder & Senior Writer

Looking for the quick-fire facts? Here are my main pros and cons of the Blueair Blue Pure 211+.

What we really like

It is a powerful air purifier that offers solid performance at top speed
Air cleaning is still good when running at fan speeds sub-45 and sub-40 dBA 
It has a simple yet stylish, with color options for the pre-filter
One-touch operation make this air purifier easy to use right out of the box

What we think could be better

When we disconnected the ionizer, performance dropped significantly
It is big and bulky, without any handles or wheels
The top can easily disconnect from the base when moving the device around
Filter costs are higher compared to other air purifiers with similar performance
You canโ€™t disable the ionizer.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):20 minutes
Air purifier technology:HEPASilentโ„ข Technology and Activated Charcoal Filter + Ionizer technology
Recommended room size (4.8 air changes per hour):540 sq. ft.
Clean air delivery rate (CADR):Dust: 350 CFM
Smoke: 350 CFM
Pollen: 350 CFM
Dimensions (in inches / in cm):20H x 13W x 13D inches (51H x 33W x 33D cm)
Weight (in pounds / in kg):12.98 lbs (5.89 kg)
Filter life:6 โ€“ 8 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 37.2 dB
Speed 2: 45.8 dB
Speed 3: 55.7 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0.1 watts
Speed 1: 16.9 watts
Speed 2: 40.5 watts
Speed 3: 54.5 watts
Estimated running cost (electricity consumption + official filter replacement):$197.27 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.71
Manufacturerโ€™s warranty:1 year
Country of manufacture:Designed and engineered in Sweden, assembled in China

Blueair’s signature Scandi design with one-button operation

A bulkier Blueair device with a removable pre-filter fabric you can replace and customize, similar to other models in their range.

Blueair Blue Pure 211 plus Living Room

Before jumping into the performance data, letโ€™s look at the design of the 211+.

Blueairโ€™s Blue Pure range has a distinctive aesthetic. The fan sits at the top of the device and the filter is tucked in underneath, covered by a colorful pre-filter fabric.

Comparison Photo Blueair Blue Pure 211 VS 411 VS 311

The 211+ is the largest unit in the Blue Pure range, and it takes up much space. 

It takes up as much floor space as the Levoit Core 600S but it doesnโ€™t come with any handles, so you need to carry it around in your arms to move it.

It is much bulkier than the AirFanta 3Pro, which has a higher CADR (430) and costs half the price. 

Blueair Blue Pure 211 plus Close up

The filter sits underneath the top half of the 211+ and is covered by a fabric pre-filter that comes in 5 color options to match your decor. 

The controls for the Blue Pure 211+ couldnโ€™t be simpler. There is one large circle button at the front that you can tap to move across three fan speeds and the on/off switch.

This makes the 211+ super easy to use right out of the box, but you donโ€™t get any extra features like child lock, timers, disabling the ionizer, or any of the other buttons we see on other air purifiers as standard. As an older model, it also doesnโ€™t have any app support.

  

One annoying aspect of the 211+’s design is that when you pick it up to move it, the bottom half may or may not detach from the fan and fall to the ground. This doesnโ€™t happen every time but it definitely has gotten worse over the years for my device, after each time I replace the filter.

Which brings me to the filter.

Tip

If, like me, you simply canโ€™t live without smart mod-cons, it’s worth checking the 211+ Auto or 211i Max.

A particle filter with a layer of carbon that is supercharged with bipolar ionization

The 211+ uses Blueairโ€™s trademarked HEPASilent filters to remove microscopic particles without noise.

Blueair Blue Pure 211 plus Filters

The filter in the 211+ consists of four layers of filtration:

First, you get the pre-filter which is made out of fabric and comes in different colors. 

As with any pre-filter, you will need to keep it clean by vacuuming it regularly. Blueair has made it easy to remove it for cases when it needs a deeper clean, so you can wash it in a washing machine using cold water.

Then, you get an ultra-thin polypropylene filter, which is the main particle filter. 

As shown by the new generation of PC fan kits that use MERV 13 filters, lower-grade particle filters are not a bad thing for air purifiers, as air will pass multiple times through the filters and the higher airflow helps to improve the speed of cleaning.

Blueair Blue Pure 211 plus No filter

Going deeper, you get a carbon filter for odors and gases.

Unfortunately, this is just a layer of carbon-impregnated fabric, so it will be less effective for VOCs and bad odors compared to the pelleted activated carbon we see in other models of air purifiers. 

Tip

Looking for more protection from VOCs? Supercharge the carbon quantity in your filter by upgrading to the SmokeBlock filter.

Lastly, you get Blueairโ€™s trademarked HEPASilent technology.

According to Blueair, its HEPASilent technology “electrically charges particles that are drawn into the device, causing them to adhere to the particle filter, where viruses and bacteria are inactivated.” The marketing materials also state that “HEPASilent filtration can deliver up to 45% more clean air faster than HEPA H13.”

What Blueair is describing sounds a lot like ionization.

Air ionizers emit electrostatic discharges into the air that alter the particlesโ€™ structure, making them heavier and forcing them to drop onto surfaces or within the device itself so they can be cleaned.

However, Blueair’s marketing materials do not mention ionization. Instead, they mention โ€œelectrostatic filtration.โ€ 

This makes sense as ionizers donโ€™t have a great reputation because they can produce potentially dangerous by-products, including ozone, aldehydes, and fine particles, which can negatively affect the health of those with respiratory conditions.

It is worth mentioning here that Blueair air purifiers sold in the U.S. are CARB-certified, which means that their ozone emissions have been tested and proven not to surpass 50 parts per billion (ppb). They are also certified by Intertek as ozone-freeโ€ฆ

After digging deep into their website, I found a page where they clearly explain the difference between ionizers and HEPASilent technology:

hepasilent blueair

Blueair states that HEPASilent technology canโ€™t be associated with ionizers because their devices combine electrostatic filtration with mechanical filtration. 

Itโ€™s important to note that the ionizer feature cannot be turned off on this device. Many people wrongly assume it will generate ozone, but a third-party lab test by Intertek provides a certificate for zero ozone (โ‰ค 0.005 ppm).

In terms of the filter itself, it is straightforward to install; simply twist the body of the purifier and slot it inside with the carbon filter facing upwards.ย ย Here’s a video on how to do it.

Tip

As with all new filters, remember to remove the filters from the plastic wrapper before turning on the air purifier.

The Blue Pure 211+ cleared our test room in 20 minutes

Blueair Blue Pure 211 look

We first tested the Blueair 211+ back in 2022 using our PurpleAir Indoor sensor, so before I started working on this video review, I re-tested the 211+ using our new PurpleAir Zen sensor:

According to our Zen sensor, the 211+ needed 20 minutes to achieve PM1 zero in our 728 cubic ft. test room:

We can compare this to other similarly-priced devices running at their top speed:

blueair 211 performance housefresh

Considering this air purifier was released in 2016, the results at top speed are impressive. 

As I mentioned above, the Blueair Blue Pure 211+ comes with electrostatic filtration through their HEPASilent technology but (unlike manufacturers such as Winix, Alen and Coway) Blueair doesnโ€™t allow you to turn off the HEPASilent in the 211+.

Smart Air has long stated that โ€œadding an ionizer is an extremely cheap way for an air purifier company to increase its purifierโ€™s CADR,โ€ so I was intrigued to see how much of an effect Blueairโ€™s HEPASilent has on the 211+’s performance.

After much deliberation, I made the drastic decision to remove the ionizer:

blueair remove ionizer

With HEPASilent enabled, the Blue Pure 211+ completed our air cleaning test in 20 minutes. Without HEPASilent, the same test took a whooping 38 minutes.

Before running the test, I assumed that HEPASilent would boost air cleaning performance a little, helping the 211+ complete our particle removal test just a few minutes faster than without HEPASilent as this is what we usually see with other air purifiers when we disable their ionizers.

blueair 211 ionizer on off

However, as the table above shows, removing the ionizer in the 211+ had a much bigger impact on air cleaning performance compared to other air purifiers.

In fact, our test shows that removing the ionizer in this Blueair device led to a 62% drop in performance.

So if you were considering removing the ionizer inside your Blue Pure 211+, keep in mind that you will significantly reduce its air cleaning performance.

I believe this explains why Blueair doesnโ€™t include an option to disable HEPASilent in the same way other manufacturers do.

Incredibly quiet considering its size

In our testing, the sound levels of the 211+ ranged from 37.2 dBA to 55.7 dBA

If an air purifier is too loud, you will find yourself turning it off eventually.

That is why we always measure how much sound they generate from 3 ft. away. 

These are the results for the 211+:

blueair 211 sound levels

Be aware our background noise is 35 dBA, so the 211+ running at speed 1 is likely to generate less sound if you could measure it in a silent room.

But feel free to have a listen for yourself:

As these figures won’t tell you much in isolation, I made a comparison with other devices that have similar performance:

Blueair 211 sound compare

The 211+ is quieter than most when compared to other similarly powered HEPA retail devices. However, it is out-matched when we compare it to PC fan-powered devices like the Luggable XL-7 from CleanAirKits.ย 

One of the benefits of a high-CADR air purifier is that you can use it on a lower fan speed and still achieve a good level of air cleaning performance.

So we retested the particle removal performance of the 211+ when running at its lowest fan speeds.

Running at speed 2 it generates 45.8 dBA, which is just above the 45 dBA limit that CleanAirStars recommends for noisy classrooms or offices. it managed to reach PM1 zero in 28 minute

When running at speed 1,ย it generatesย 37.2 dBA, which is below the 40 dBA recommended for quiet classrooms and offices. At speed 1, the 211+ reached PM1 zero in 45 minutes.

We can compare these results with other air purifiers running at sub-45dBA:

Blueair 211 performance test sub 45dbA compare

Running at lower fan speeds, the Blue Pure 211+ performs well when benchmarked against other similarly powered devices we have tested at low speeds. This is likely to be thanks to its HEPASilent technology.

However, concerning performance at low sound levels, the 211+ is still no match to PC fan-powered air purifiers like the AirFanta 3Pro or the CleanAirKits Luggable XL-7.

Letโ€™s look at how much the 211+ will cost you in the long term, starting with your energy bill.

The cost to run a Blueair Blue Pure 211+: $197.27 per year

1. Electricity costs = $57.29 per year

As always, we used our energy meter to record the 211+’s energy use when running at each fan speed and also while on standby.

I also measured how much power was used once I removed the ionizer.

blueair 211 energy consumption

If you had to leave your Blueair 211+ running 24/7, it would cost $57.29 per year in energy costs.

With this calculation in mind, we can compare the annual energy costs you can expect from the Blueair 211+ to other devices we have tested:

blueair 211 energy consumption costs

Energy usage compared to performance is very fair with the Blue Pure 211+, which must be due to the combination of a lower-grade particle filter and electrostatic filtration.  

2. Filter costs = $139.98 per year

Itโ€™s not just energy costs that add to the running cost of an air purifier and you will also need to replace the filters eventually. 

Blueair says you need to replace the filters for the Blue Pure 211+ every 6 months. The recommended OEM filters cost $69.99 for the standard filters, but they do offer options with extras that go up to $89.99.

This means the total filter costs for one year for the Blue Pure 211+ is $139.98; We can combine that with energy costs and compare with other similar performing air purifiers:

blueair 211 yearly running costs

The Blue Pure 211+ is this group’s second most expensive air purifier, costing over three times more than the Luggable XL-7 and nearly twice as much as the Vital 200S. 

This is likely due to the lower filter life, as the filter needs replacing every 6 months, compared to 12 months for the Levoit Vital 200S.

Bottom line: Is the Blueair Blue Pure 211+ worth it?

Its combination of a lower-grade filter and ionization function provides good air cleaning power at lower fan speeds.

Blueair Blue Pure 211 Front Room

When I first reviewed the Blue Pure 211+ in 2022, I was blown away by its performance because it was a relatively cheap air purifier, yet it could effectively clean the air.ย 

As our new data shows, even when running at speed 2, the 211+ has an estimated CADR of around 230 cfm, and at speed 1 you will get the same performance as the Levoit Core 300 running at top speed (140 cfm). 

Blueair Blue Pure 211 plus Living Room logo

So why did Blueair air purifiers never make it to my list of the best air purifiers?

Well, the Blueair Blue Pure range uses an ionizer process to help clean the air, which is also found in devices from Coway, Winix and Alen. 

However and unlike Coway, Winix and Alen, with the Blueair 211+, the user has no way of switching off this function. 

To be clear, I donโ€™t believe that the Blue Pure 211+ creates large amounts of ozone. I was unable to detect any with my ozone detector after leaving it running and it also has a certificate from Intertek to state it creates less than 0.005pm of ozone.

If you do have one, the performance is good as long as you have no issue with the ionizer, and know it can be very effective even when running on lower quiet fan speeds.  

SOURCES

We calculated yearly costs associated with running the Blueair Blue Pure 211+ 24 hours a day, 365 days per year, utilizing the Appliance Energy Calculator developed by the U.S. Department of Energy as of March 2025.

Dyson HP04 Pure Hot + Cool Review

Dyson HP04 Pure Hot Cool Fire Place

Dyson was started in 1991 by James Dyson in the UK who originally brought the cyclonic vacuum technology or bagless vacuum cleaner to the mainstream. I personally have the Dyson Outsize Absolute and we are super happy with it.  

Since then, Dyson has released several products, including the Dyson bladeless fan in 2009 and then their first air purifier in 2015. Air purifiers are just fans connected to filters. Hence, with indoor pollution becoming more and more of an issue around the world it makes total sense that Dyson would make the move into air purifier manufacturing.

This particular model that I am reviewing is the Dyson HP04 Hot + Cool, which is priced at $690*, not cheap when you compare it with other air purifiers on the market. But then again, no other devices offer fan cooling and heating. 

In general, the technological improvements in the air purifier world relate to the filter types. Still, Dyson is bringing something very new with its bladeless fan, and Iโ€™m excited to see how this unit compares with other air purifiers.

As with all the air purifiers we review here at HouseFresh, we bought the Dyson HP04 Pure Hot + Cool with our own money to ensure we can share our unbiased opinion. We also performed a series of tests on this unit that allow us to compare it like for like against all the other air purifiers we have reviewed over the years.

how we test
How we test air purifiers

Read our full testing methodology.

Right, let’s get into it.


The lowdown on the Dyson HP04 Pure Hot + Cool

Danny Ashton HouseFresh
“Unless you really need a combo unit with a fan, heater, and air purifier, then we would suggest passing on the Dyson HP04 as the air cleaning performance doesn’t match the large price tag.”
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Dyson HP04 Pure Hot Cool Fire Place

PRICE on amazon PRICE on DYSON
PRice on SYlvANE

Letโ€™s get down to the nitty-gritty. Here are the key points we found when reviewing the Dyson HP04. 

What we really like

The design of the unit and app is excellent
The fan mode is great, and I can see myself using this a lot as the temperature increases
Auto mode works well and detects pollutants as quickly as my air quality sensor
Dyson has good after-service support, based on my existing Dyson gadgets
The ability to rotate and move air up to 350 degrees around the room

What we think could be better

The price is very high for a unit with this level of air-cleaning performance
Genuine filters cost a lot for a fairly small surface area.
Dyson is not as transparent about their own performance data in their marketing aimed at English-speaking countries

The specifications

At $745, the Dyson HP04 doesnโ€™t come cheap. For around this price, you could look to buy the Alen BreathSmart 75i with a CADR rating of 347 ($636.65) or the Mila Air Purifier with a CADR score of 263 CFM ($408). As the Dyson only scores a lowly 89 CFM, itโ€™s fair to say that on paper, it doesnโ€™t cut the mustard. But letโ€™s see how it got on in our real-world review. 

HouseFresh rating:โ˜…โ˜…โ˜…โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):1 hour and 24 minutes
Air purifier technology:HEPA and activated carbon filter
Recommended room size (estimated by HouseFresh to achieve 4.8 air changes per hour):139 sq. ft. 
Clean air delivery rate (CADR):Estimated: 89 CFM
Dimensions (in inches / in cm):30.1H x 8.1W x 5.1D inches (76.5H x 20.7W x 13D cm)
Weight (in pounds / in kg):12.36 lbs (5.6 kg)
Filter life:12 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 37.2 dB
Speed 2: 43.5 dB
Speed 3: 49.1 dB
Speed 4: 54.6 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0.5 watts
Speed 1: 4.6 watts
Speed 2: 9.1 watts
Speed 3: 16.8 watts
Speed 4: 25.5 watts
Estimated running cost (electricity consumption + official filter replacement):$81.88 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$4.59
Manufacturerโ€™s warranty:2 years
Country of manufacture:Malaysia

Futuristic design fit for modern homes

Intuitive controls, high-tech features and smart capabilities

Air purifiers these days can come in all shapes and sizes, but for the most part, they are usually a box-type design that pulls in air from either the front and back or the sides. Dyson is known for their innovative designs, and the HP04 is no different. 

Dyson HP04 Pure Hot Cool Top Close

This has to be one of the best-looking air purifiers I have ever encountered. It would fit perfectly with the interior design of the modern home without taking up too much space as you would find with a box unit like the Coway Airmega 300.

The top half of this air purifier combo is the fan whilst the bottom section is where the filters sit. Simply put, it pulls air from the bottom through the two filters and then blows it out via the air outlets at the top. 

Dyson HP04 Pure Hot Cool Above

The bladeless fan is great for homes with curious kids who like to put their fingers into anything (as mine tend to do) and whilst itโ€™s tall, it doesnโ€™t feel intrusive to the room. 

When comparing the Dyson HP04 to the Smart Air S, you notice the contrast in design styles. Although the Smart Air S is still a cute-looking unit with its own charming features, the HP04 takes on a futuristic aesthetic that challenges the everyday design of household appliances. 

Dyson HP04 Pure Hot Cool Comparison Smart Health S

As weโ€™ve come to expect from Dyson products, the HP04 comes well-packaged in a branded box. Thereโ€™s still a little too much plastic for my liking, but theyโ€™re getting better at reducing their carbon footprint with their packaging. 

If you have used a Dyson before, youโ€™ll know that they provide a great user experience; the same is true of the HP04. 

It has a digital display on the front that tells you the quality of the air in the room and which fan speed itโ€™s currently set to. Using the remote control, you have ten different speeds to use, allowing you to harmonize the unit with the air quality or temperature.

Dyson HP04 Pure Hot Cool Control Panel

In older models, you could only use both functions simultaneously. If you wanted to clean the air, you would also have to put up with the fan cooling/heating the room. With the HP04 you can set the unit to purify the air and not use the fan, which is certainly useful for those living in colder climates. 

The fan can turn at varying degrees from 90 to a maximum of 350 which I would use during the summer to get as much cool air around me as possible. 

Auto mode allows the unit to only come on when it detects pollutants in the air and is a useful feature for those who have occasional issues with air pollutants like rush hour traffic on the adjacent road or dinner-time cooking odors.

The remote comes in its own box with the function of each button printed on it, making it so much easier to learn what each one does without spending time surveying the manual. However, you still do receive a physical manual with the unit. Like a lot of people now, I instantly lose any manual because I know everything I need is online. With a progressive company like Dyson, I expected them to not waste paper.

Dyson HP04 Pure Hot Cool Bottom Close

The remote is pretty small but very functional. You can control each function of the unit including fan speed, heating or cool mode, sleep timer, and the direction you want the air to flow. It even has a magnetic element so it can easily be stored on the top of the air purifier without it falling and being lost. 

The next step is to set up the app which is super simple once youโ€™ve downloaded it from the Android or Apple app store.

Dyson Link App

Not only can you control the unit’s functions, but you can also monitor the air quality of your room, the air quality outside, see your unit’s activity, and get reports on temperature, humidity, and filter life. 

Once itโ€™s set up you get a big tick and the air purifier is ready to work its magic.

Button 1

Small filters leave question marks over purifying capability

A round filter comprised of two separate halves that clip together in place, similar to other Dyson air purifiers

The one thing I was surprised about was the size of the filters. They are a lot smaller than I expected for such a big machine. This probably goes to explain why the CADR scores are so low when compared to other smaller units with bigger filters.

Dyson HP04 Pure Hot Cool Unit Filters

The activated carbon filters are fairly narrow, and I just canโ€™t imagine that this amount of activated charcoal is going to be able to remove much beyond minor odors in small rooms. In comparison, the Austin Air Healthmate Pro comes with 15 lbs of activated carbon – this unit weighs 12.36 lbs in total.

Dyson HP04 Pure Hot Cool Carbon Filter

A lot of new units come with a washable pre-filter. These act as the first line of defense as they are able to stop bigger particles before they hit the HEPA filter. Being washable prolongs the life of the other filters, saving you from having to replace them more often. 

Dyson HP04 Pure Hot Cool HEPA Filter

However, there is no pre-filter here, which is disappointing as youโ€™ll notice decreased performance relatively soon once hair, lint, and fur start to clog up your HEPA.

When it comes to changing the filter, the first thing you need to do with this unit is take off the covers and attach the charcoal filters. There is a big warning sign on the unit so youโ€™re not going to forget. The activated charcoal filters clip in easily and you can see that the seal is airtight thanks to the rubber elements around both filters.

The filters then clip into the unit in two halves. Once youโ€™ve removed the outer panels of the purifier section of the unit, they fit in as two semi-circles that make up the 360-degree air intake. 

The Dyson HP04 cleared our test room in 1 hour and 24 minutes

That’s 14 minutes longer than the Dyson PH03 and more than double the time than the Dyson Cool TP07

To test this unit I used our home office and generated smoke using an incense stick. I used the Purple Air Indoor Sensor to evaluate the change in air quality over time.

I wanted to know how quickly the Dyson HP04 could reduce the amount of PM2.5 and PM10 particles in the air. These tiny particles are the most important to remove as they can get deep into the lungs and cause long-term health issues.

The room was 728 cubic ft. I started the air purifier once 50% of the incense had burned, and my air quality sensor showed 500 PM10 and 500 PM2.5.

Similar to the team at IQAir, but for different reasons, the Dyson team are not big fans of CADR methods.

They argue that their fan air purifier can move more air around the room than standard air purifiers, so they use their own POLAR test. 

Like any test, CADR has its limitations, but I still think itโ€™s a good benchmark to allow consumers to compare units. 

Unlike the US, China has strict rules around air purifiers, so Dyson does reveal the details for the slightly upgraded HP07 unit on their site in China.

image1

A CADR of 151.m3/h equated to 88.9341 CFM for a unit costing $700 is not great, considering you can purchase a unit that is less than $100 that achieves a higher CADR of 140 with the Levoit Core 300.

Air cleaning performance compared

While this unit does have way more features than the Levoit 300 (such as a fan, heating element and a smartphone app), I still expected this unit to perform a lot better than the Levoit 300 during our tests.

Noise levels test results

A concern for many with air purifiers is the amount of sound generated. In our tests, it clocked up to 54.5 dB on its highest setting, which is fairly low when compared to other units. It even matches some SilentHEPA Blueair units, such as the Blue Pure 411.

But I know that sound can be very subjective, so I created a video to show the sound at each speed level from 1-10.

The cost to run a HP04 Pure Hot + Cool: $81.88 per year

1. Electricity costs = $38.89

The running costs of an air purifier are something you should always consider, both in the costs of electricity usage and the required amount of filter replacements. 

This unit has a recorded power consumption of 36-44 watts, but when I tested it using a power meter, I found that on the maximum setting, it only pulled 25.5 watts.

Speed settingWattage used
13.5
23.8
34.6
45.2
56.5
69.1
711.7
816.8
920.2
1025.5

Using the average energy prices as registered by the U.S. Bureau of Labor Statistics, we can see that at its highest setting, this air purifier will cost $38.89 a year if left to run 24/7, which is excellent efficiency for a larger unit. 

When I used the heating element – the power wattage jumped significantly, with an average of 2500 watts which shows how energy-intensive space heaters are, so ensure you are aware of the incurred costs ($3.813 per year) if youโ€™re planning to use the heater feature regularly.

2. Filter costs = $42.99

Replacing filters is another cost that many donโ€™t think about. However, this can get costly, so itโ€™s best to know what youโ€™re committing yourself to. 

The genuine HEPA and activated carbon filters are $65, which is above average for a unit with this level of performance. There are also generic filters available on Amazon for $42.99 which may not perform as well as the original Dyson filters, but itโ€™s good to know that there are cheaper options out there. 

Dyson recommends you replace the filters every 12 months, but based on their size and lack of pre-filter, I would expect this to be more like 6 months. We will keep an eye on this as we use it over the long term and report back on how long they lasted. 

2-Pack TP04 Filter Replacement Compatible with Dyson TP04 / HP04 / DP04 Air Purifier, 360 Combi Glass High-Efficiency Carbon Filter
  • ใ€Less Costใ€‘ H13 True HEPA filter which fits and works as good as the original but cost by half.
  • ใ€Breath Clean Airใ€‘ Great for pet owners or people sensitive to the air. Our filters are capable of filtering the smoke produced by wildfires, rendering the indoor air pure and delightful.
  • ใ€Effortless Setupใ€‘ Just take the original filter out, and fit the new one in.
  • ใ€Fit Perfectlyใ€‘ Compatible with Dyson HP04, TP04 and DP04 Air Purifier and Tower Fan, TP05 and DP05 models. All manufacturers' names and part numbers are used for compatibility information only.
  • ใ€Long Lastingใ€‘ It is recommended to replace filters for every 12 months. All manufacturers' names and part numbers are used for compatibility information only.


Bottom line

If you want an air purifier that works as a fan and a heater, then you donโ€™t have any other options apart from the Dyson HP04. 

Iโ€™m a big fan of the innovation that Dyson is bringing to the air purifier market. Still, its air cleaning performance has a long way to go before I would recommend this unit over getting a separate fan and a much cheaper air purifier. 

Dyson HP04 Pure Hot Cool Living Room

I dislike that they donโ€™t make the CADR clear for consumers and hope that they update their marketing material to align with what they have for China.

Itโ€™s certainly a great-looking machine, and the auto-mode and app work as well as you would expect for a $700 unit. But, for those looking for the best bang for the buck for cleaning the air – there are far better options. 

If youโ€™re looking for a top-end unit, youโ€™d be much better off going for the superior AlenBreathSmart 75i, the โ€˜godfatherโ€™ IQAir Healthpro Plus, or save yourself some cash and opt for the quickest purifier to undertake our real-world tests the Levoit Core 600S.

SOURCES

We calculated yearly costs associated with running the Dyson HP04 Pure Hot + Cool 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of April 2024.

Rabbit Air MinusA2 review

Rabbit Air MinusA2 Front 1 1

Rabbit Air has gone full-on making this air purifier either blend into your home or be the centerpiece of any room. Boasting a 5-stage BioGSยฎ HEPA filtration system, highly sensitive odor and particle sensors, WiFi compatibility, app control, and cutting-edge Brushless Direct Current (BLDC) motors, this unit covers most bases when it comes to purifying the air in the home.

With one look at the MinusA2, youโ€™ll realize that Rabbit Air is trying to do something different. In a market full of white boxes, the MinusA2 takes air purifier design to the next level with its innovative way of living comfortably with a unit in the home.

Coming in at just over $600, the MinusA2 is aimed at an audience who appreciate the finesse of design and those who love their gadgets with featuresโ€ฆ lots of features.

Rabbit Air MinusA2 alongside its box

As with all our hands-on reviews here at HouseFresh, we bought this unit with our own money, so we have no biases to give a better review than we would under normal circumstances.

how we test
How we test air purifiers

Read our full testing methodology.

Will this futuristic unit triumph? Or is it style over substance?

The lowdown on the Rabbit Air MinusA2

Danny Ashton HouseFresh
The wall-mountable Rabbit Air MinusA2 may not be the simplest to set up and get your head around, but once you do, youโ€™ll see why itโ€™s worth the price tag.โ€
โ€” Danny Ashton, HouseFresh Founder & Senior Writer

ed sherbenou
โ€œRabbitAir SPA-780A is a modern, attractive, automatic, ultra quiet, quality air purifier, suitable for living and sleeping areas up to 270 square feet.

MinusA2 SPA-780A could be improved by doubling the weight of the carbon filter.

Rabbit Air has come a long way, in just a few years, achieving a reputation for good customer service and innovative high quality products.”

โ€” Ed Sherbenou, Air-Purifier-Power Founder
Rabbit Air MinusA2 Front 1

PRICE on amazon PRICE on RAbbitAir

What we really like

Its design is modern and customizable, with different design covers that transform the MinusA2 into a functional piece of wall art
You can leave it freestanding or mount it on the wall (and it comes with everything you need for wall mounting)
Rabbit Air offers different filter options for the MinusA2 that cover all cases: Germ Defense, Toxin Absorber, Pet Allergy or Odor Remover
It comes with a 5-year warranty in case of any mishaps, which isn’t a standard
It features an onboard air quality sensor, which allows it to include an Auto mode

What we think could be better

The filter replacement indicator is located on the side of the control panel and is small, so it wouldn’t be hard to miss it
The app needs work: it was incredibly challenging to get it to connect to the wifi and even when it did, it kept randomly disconnecting

The specs

HouseFresh rating:โ˜…โ˜…โ˜…โ˜†โ˜†
Air purifier technology:BioGS HEPA filter with an activated carbon filter
Recommended room size:815 sq. ft.
Clean air delivery rate (CADR):Pollen 200 CFM
Dust 193 CFM
Smoke 180 CFM
Dimensions (in inches / in cm):20H x 21.4W x 7D inches (50.8Hx 54.4W x 17.8D cm)
Weight (in pounds / in kg):19.4 lbs (8.8 kg)
Filter life:12 months
Noise level (low โ€“ high):25dB – 51dB
Estimated energy consumption:$64.12 per year
Warranty:5 years
Country of manufacture:South Korea

Customizable look and simple operation

Five different cover designs to personalize your MinusA2

Okay, so Iโ€™ve already gone on about the design of the MinusA2, but letโ€™s take a closer look. We opted for the black version over the normal white model because, let’s face it, it looks so much cooler.

The shiny gloss front panel holds a Knight Rider-esque light bar stretching most of the unit. Down the front right-hand side is where the controls live, along with more lights and indicators.

Rabbit Air MinusA2 Close up

But if youโ€™re more into decorative aesthetics, Rabbit Air has you covered, as it offers five different designs to choose from that will transform your air purifier into a functional piece of wall art.

Webp.net gifmaker

A great feature of this unit is its free-standing or wall-mounted ability. You receive all the parts youโ€™ll need for both options without buying any extras. If you choose to have it freestanding, it measures just 19.25 inches in height, which means it wonโ€™t be towering over anything, and (size permitting) you could even have it on a desk or table. The MinusA2 has a remote control; super handy when mounting the unit to the wall.

The control panel is clearly labeled and extremely easy to navigate. There are four buttons: Speed (to control fan speeds), Mode (to switch modes + to reset the filter indicator), Mood Light (to turn the light on and off + to turn the Negative Ion Generation on and off) and Power button.

Rabbit Air MinusA2 Control Panel

Here are some notes on the buttons:

  • You must press and hold the Power button for two seconds to turn the unit on or off. 
  • There are five speeds, so pressing the Speed button takes you through Silent > Low > Medium > High > Turbo.
  • The Mode button is a dual control button: pressing it briefly allows you to change between Pollen Mode and Auto Mode. But when you press and hold this button, it will reset the Replace Filters Indicator.
  • The Mood Light button is also a dual control button. When pressing it briefly, it turns the mood light on and off. Pressing it and holding it for three seconds allows you to turn the Negative Ion Generator on and off.

We found that for general use, Auto mode worked better for us. When you set it to Auto, you can forget about it and let it do its job. We noticed the fan speed and air quality sensor changing when cooking and moving around the apartment more than usual. 

A great feature of the Rabbit Air is the light sensor. When testing the unit in the bedroom overnight, we noticed that when you turn the lights out, the A2 will turn its light out so it wonโ€™t disturb your sleep. This happens because when the room is dark for three minutes, the MinusA2 goes into Sleep Mode. It’s worth mentioning that Sleep Mode doesn’t override Pollen Mode or the fan speed you have set manually.

Rabbit Air MinusA2 Sensors

Something I like about the MinusA2 is that it comes with an air quality sensor onboard, allowing you to track air quality levels in your home — by the way, this makes the air purifier capable of offering Auto Mode in the first place!

The Air Quality Indicator light indicates the air quality in the room the air purifier is in. Depending on the amount of pollutants in the air, the colors shift from blue (good air quality) to purple to pink to red (bad air quality).

Another thing I like about the onboard air quality sensors is that you can adjust the sensitivity levels. All you need to do is press and hold both the Speed and Mode buttons for three seconds. Afterward, you will see the Air Quality Indicator and Auto Mode Indicator blinking. This means that you can now use the Speed button to set the sensitivity level you prefer: low (Replace Filters), standard (Pollen Mode) and high (Auto Mode). Press and hold the Speed and Mode buttons for three seconds to save the new sensitivity level.

Unfortunately, the RabbitAir app is not great.

Youโ€™d think it would be standard practice to have wireless capabilities with air purifiers by now, but it still seems to be an extra feature (I hope this changes soon). The MinusA2 has these capabilities, and Rabbit Air has created its own app for their units. 

Screenshot 2022 02 03 at 10.04.20

You can connect to the MinusA2 from the comfort of your couch or before you get to your house to remotely turn your unit on/off, check the room’s current air quality, change fan speeds, and engage Auto Mode.

The app is probably greatโ€ฆ when itโ€™s working. At first, the unit wouldnโ€™t connect to my wifi at all. Eventually, when it did connect, it would work for a while, then disconnect by its own free will.

This continued until I got to the point where I didnโ€™t use it all. I hope Rabbit Air updates the app to improve its UX and functionality as being able to access the air purifier remotely would be extremely useful.

Tip

There is an option to use Alexa if you like shouting commands from across the room.

6-stage filtration system

This is where Rabbit Air stands tall over other brands.

The MinusA2 comes with a large six-stage filter to battle airborne contaminants, which fits snugly in the front of the unit.

Minus A2 6 filter visual

Here’s a breakdown of the six stages:

Stage 1: Pre-filterThe pre-filters main task is to capture larger airborne particles like dust mites, pet hair, and pollen. This filter is hand washable, which means it not only doesnโ€™t have to be replaced with the other filters, but it prolongs its lifespan (if you wash it regularly, of course).
Stage 2: Medium filterYou donโ€™t commonly find a medium filter on a lot of units, so this is a bonus. Itโ€™s designed to care for particles larger than 1 micron, like bacteria, mold, and dust particles. Having a medium filter means the HEPA filter doesnโ€™t have to work as hard and should last longer.
Stage 3: BioGSยฎ HEPA filterA HEPA filter has the most critical role in any air purifier: it removes the tiniest particles out of the air to make it clean. Rabbit Air’s BioGSยฎ version traps 99.97% of allergens and particles 0.3 microns in size. Basically, whatever sneaks through stages 1 and 2 will be caught here.
Stage 4: Customized filterThe MinusA2 allows you to tailor the unit to match your needs. Each of the 4 customized filters is engineered to tackle different contaminants. You can choose from Germ Defense, Toxin Absorber, Pet Allergy, or Odor Remover.
Stage 5: Activated carbon filterRabbit Air claim that its filter is more effective than typical Activated Carbon filters. It reduces chemicals and odors in the home, like vape/cigarette smoke, VOCs, and cooking odors by trapping them in its activated carbon layer.
Stage 6: Negative ionsNot strictly a layer of the filter, these invisible molecules released from the unit latch onto contaminants, weighing them down. This makes it easier for the filters to trap these particles.

Something I didn’t like as much is that the (dreaded) filter replacement indicator is located on the side of the control panel and is pretty small, making it easy to miss. This means that youโ€™ll have to keep an eye on it. Rabbit Air states that you should replace the filter every 12 months if youโ€™re operating the unit 24 hours a day. 

Tip

You can prolong the filter life by regularly cleaning the pre-filter and making sure you vacuum and dust more regularly.

Air Cleaning Performance [CADR]

The Rabbit Air SPA-780A was sent for an AHAM CADR test and certified in 2011. You can see the full CADR report at Energystar.gov:

Rabbitair A2 CADR report

Noise levels test results

Noise is a key factor for me. As the fan spins around, collecting all those harmful toxins, it starts to generate noise, and if itโ€™s too loud, itโ€™ll deter me from turning the unit on. 

On Silent mode, you can hear the fan gently hum away, which is great if you have it in the bedroom as it wonโ€™t keep you awake. Turbo mode, on the other hand, is where the MinusA2 ramps noise levels up. Unfortunately, it does get quite loud and noticeable even over the TV. It’s no jet engine though!

Hereโ€™s a video so you can hear it by yourself:

The full Air-purifier-power.com noise to airflow specification for the Rabbit Air SPA-780A (decibels per cubic foot per minute) is:


Speed 1 – 25.6 dBA @ 58 CFM
Speed 2 – 31.1 dBA @ 80 CFM
Speed 3 – 37.4 dBA @ 112 CFM
Speed 4 – 44.5 dBA @ 159 CFM
Speed 5 – 51.3 dBA @ 218 CFM

Air purifiers are engineered around the motor.

The current state-of-the-art engine is the Brushless Direct Current Motor (BLDC) motor.

These produce no sparks, no ozone, less heat, low noise, low vapor emissions, weaker electromagnetic fields, and last longer than the older designs prevalent in the industry.

With the ionizer on and the fan on low, there are trace ozone emissions, approximately .002 parts per million.

This is very low ozone, comparable to many other air purifiers which may claim “zero” ozone emissions.

Rabbit marketing is up to date with published specificationsโ€”many builders hide noise and other emissions behind vague platitudes.

MinusA2 has roughly the same noise emissions as its predecessor, the near-silent 582A.

Cost to run the Rabbit Air MinusA2: $169.12 per year

1. Electricity costs = $64.12 per year

At its minimum fan speed, the Rabbit Air MinusA2 only recorded 7 watts, the same as a compact fluorescent. Compared to competitors, it pulls much less power; the Honeywell HPA300, for example, recorded 30 watts when running at its lowest fan speed. When setting the MinusA2 at its top fan speed, however, the unit pulls 61 watts. If you were to run this air purifier at its top speed non-stop for a full year, it would cost you $64.12 per year.

Over the life of the MinusA2 low power consumption will offset some of the higher purchase price.

2. Filter costs = $105 per year

The filter costs are not cheap, but luckily, you shouldn’t need to replace the filters sooner than 12 months. The good news is that generic replacement filters are easily available online if the official MinusA2 replacement is too expensive for your wallet.

Rabbit Air,Genuine Original Air Purifier Filter - MinusA2 Filter Replacement Kit and HEPA Filter Replacement Compatible with Models SPA-700A and SPA-780A/N (with Toxinn Absorber Customized Air Filter)
Filter-Monster โ€“ Odor Reduction Air Filter Replacement Kit - Replacement Compatible with Rabbit Air MinusA2 Air Purifier
Technology
Medium Filter, BioGS HEPA Filter, Customized Filter, Charcoal-Based Activated Carbon Filter
True HEPA filter, medium filter, customized filter and activated carbon filter
More information
Price
$105.00
$62.99
Rabbit Air,Genuine Original Air Purifier Filter - MinusA2 Filter Replacement Kit and HEPA Filter Replacement Compatible with Models SPA-700A and SPA-780A/N (with Toxinn Absorber Customized Air Filter)
Technology
Medium Filter, BioGS HEPA Filter, Customized Filter, Charcoal-Based Activated Carbon Filter
More information
Price
$105.00
Filter-Monster โ€“ Odor Reduction Air Filter Replacement Kit - Replacement Compatible with Rabbit Air MinusA2 Air Purifier
Technology
True HEPA filter, medium filter, customized filter and activated carbon filter
More information
Price
$62.99


Bottom line

The Rabbit Air MinusA2 is a hard worker and looks great.

Its six-stage filter system makes light work of airborne pollutants, and you can see it working with its air quality indicator. 

Yes, the app can be a little problematic, and the buttons are small, but it makes up for these issues when cleaning the air in rooms up to 815 sq. ft.

Rabbit Air MinusA2 Front 1 1

The Rabbit Air MinusA2 fits perfectly well into creative spaces, apartments with little floor space (thanks to its mountable nature), and those who want their gadgets with a little more style.

SOURCES

We calculated the monthly energy consumption costs with the help of the Department of Energyโ€™s appliance energy calculator. We calculated the yearly costs associated with running the Rabbit Air MinusA2 24 hours a day for 365 days. We chose to run this calculation utilizing the U.S. average utility rate of $0.12/kWh as of February 13th, 2024.

Updated on Dec 17, 2024: Links to eBay were removed and replaced with Rabbitair.com, and a broken image was replaced.

Alen BreatheSmart 45i review

Alen BreatheSmart 45i Fireplace

Alen is one of the most respected names in the air purifier business. Based out of Austin, Texas, the company has been making top-of-the-range air-cleaning solutions for over 15 years.

In fact, the Alen 350 was one of the first air purifiers I tested over a decade ago and is still a device that stands up to many modern appliances. 

Alen has built on this pedigree to develop powerful purifiers for both commercial and residential settings. Their most popular product line is the BreatheSmart range, which includes the Flex, 45i and 75i

The BreatheSmart 45i is the mid-size model in the BreatheSmart series, sitting between the 35i and 75i.

I picked mine up for ยฃ279.99 ($375.67) on eBay in 2023, but it sold on Alen.com and Amazon for around $428 when I published this review.

how we test
How we test air purifiers

Read our full testing methodology.

The lowdown on the Alen BreatheSmart 45i


danny

“Soโ€ฆ is the Alen 45i good for you?

Considering only the initial price and top-speed CADR, itโ€™s difficult to argue that the Alen 45i will ever be a top budget pick.

However, the Alen 45i does have some interesting benefits that could make it worth the extra price.

It has the same quiet fan speed performance as some of the best mid-sized air purifiers and fairly low energy usage, which means running costs are also on par with some of the best models out there.”

โ€”Danny Ashton, Founder & Senior Writer

Alen BreatheSmart 45i Front

If you donโ€™t want to watch my full review of the Alen Breathsmart 45i, here are the 4 things I like and the 2 things I donโ€™t

What we really like

Alen makes high-quality units that come with a lifetime warranty (but you need an active filter subscription).
Great air cleaning performance even on quieter fan speeds
Low energy costs compared to similar-performing units, which means low overall running costs
Filter options at purchase (Pure, Fresh, Odor, Smoke)
A less intrusive overall sound, thanks to pink noise output 

What we think could be better

A higher purchase price than models from Levoit, Winix and Coway
The lifetime warranty requires you to use OEM filters or have a subscription

The BreatheSmart 45i currently retails for $419.00. It has a CADR test report on the EnergyStar Website, and the device was certified in 2018.

For this dust CADR score of 207.9 cfm, we would expect it to clean the HouseFresh test room of all PM1 particles in a similar time to the Dyson Big and Quiet BP06, which managed to clean our test room in 30 minutes.

We will also examine its effectiveness at lower fan speeds, as sadly, CADR only tests at top speed.

This device has 0 ppb of ozone, which suggests it uses a low-power ionization process. According to Alen, it releases only 0.001 ppm. In comparison, the background level in the United States is 0.015 and 0.045 ppm. I do appreciate that Alen allows you to disable the ionizer for those who might have a sensitivity. When disabled, it will mean zero ozone, and I appreciate that itโ€™s easy to do via a button on the control panel.

Clean air delivery rateย (CADR):โ€“ Top speed PM1 CADR: 198 cfm
โ€“ Sub-45 dBA PM1 CADR: 123 cfm
โ€“ AHAM PM2.5 CADR: 207.9 cfm (dust)
Filter technology:True HEPA H13 filter with activated carbon pellets + Ionizer technology
Recommended room size:297 sq. ft. (5 air changes per hour)
Dimensions:25H x 15W x 8.5D inches (63.5H x 38.1W x 21.6D cm)
Weight:15 lbs (6.80 kg)
Noise level in decibels from 3 ft. away:Speed 1: 36.2 dB
Speed 2: 42.2 dB
Speed 3: 51.1 dB
Speed 4: 56.1 dB
Electricity consumption in watts:Standby: 0.8 watts
Speed 1: 4.4 watts (5.1 w/ionizer)
Speed 2: 9.3 watts (10.1 w/ionizer)
Speed 3: 22.3 watts (22.8 w/ionizer)
Speed 4: 38.5 watts (38.7 w/ionizer)
Filter lifespan:9-12 months
Manufacturerโ€™s warranty:Lifetime (with product registration & active filter subscription)
Country of origin:United States
Country of manufacture:China

The 45i is a serious unit with sophisticated features

Alen has managed to give a white box appliance a sleek style that shows off its quality.

Alen BreatheSmart 45i Fireplace

Before we jump into the design, the Alen 45i was released in November 2019, so it is 6 years old at this point.

The reason I share this historical tidbit is that many air purifiers look mightily similar to the Alen 45i.

Like we have seen with Levoit’s popular models, I believe the Alen 45i has been a big inspiration for other air purifier designers over the years.

It uses a front cover that can be changed to 5 colors/textures for an extra cost. 

Alen BreatheSmart 45i Bedroom


The rectangular design’s benefit is that the filter can be easily accessed. The cover is held shut by magnets.

There is a solid handle underneath the control panel at the back. 

Alen BreatheSmart 45i Control Panel

From left to right, you get an ionizer button,then a  filter light that shows green, yellow and red, and a light button for low, high, and off.

The on/off button is in the middle, and it includes a light that adjusts color depending on the level of air quality detected by the sensor from Blue (low) to Purple (very significant.) This is based on data from the sensor at the side of the device; The onboard sensor is a PMS7003โ€”one of the more accurate laser sensors used in purifiers. Itโ€™s the same sensor tech in our lab testing setups.

PupleAir Zen Sensors

Most sensors used for auto-modes in air purifiers are optical sensors, which are much cheaper. The benefit of laser sensors is that they react quickly to particle-level changes and don’t need continual cleaning, as you can see with cheaper optical sensors.

From here, you can cycle through the 45iโ€™s four fan speeds, turn the LED lights on or off, and lock the controls from meddling kids or pets.

Alen BreatheSmart 45i AQI

Depending on your preference, You can switch on or off the unit’s ionizer function. This technology releases positive and negative charges into the air, which causes particles to lump together, making capturing the HEPA filter easier and also helping to slightly reduced VOC’s.

The downside is that this technology can create ozone as a byproduct. Alen states that the 45i emits less than 0.001 PPM, which is less than what is naturally found in the atmosphere, so it shouldnโ€™t cause too much of an issue. However, unlike manufacturers such as Blueair, Iโ€™m glad they still gave users the choice to use or not to use.

Those looking for more technical features will be glad to hear that the 45i is compatible with the Alen Air app.

The unit I’m testing here was purchased as a UK version, so it doesnโ€™t have app support. However, if you have an older 45i, you should still be able to use the app even if it wasnโ€™t sold as having app support. Alen installed Wi-Fi functionality in many of the older 45is years before they rolled out the app, so if you do have an older 45i, be sure to try to connect to the new Alen app. 

I plan to when we test the latest Alen 35i later in the year, so I will be sure to update my thoughts on the web version of this review.

For the app, Apple had 2.6 out of 5, and Android had 3.2 out of 5. After reading the reviews, I noticed that there is no standout issue as of mid 2025, but some customers complain that itโ€™s a very simple app. It looks like Alen has been upgrading the app, as it now has historical data from the sensor and the ability to schedule when it comes on and off.

High-quality H13 HEPA filters to tackle tiny particles

Alen offers some of the best filters on the market, with different options to suit different needs.

Alen BreatheSmart 45i Filter

One unique feature of the Alen range of air purifiers is that you can choose your filter when you buy from them directly. 

The Pure uses only a medical-grade HEPA filter and no gas carbon element. For $15 more, you can get the Fresh filter, including 0.66 lbs of pelleted carbon.

Although weโ€™ve seen a few rival manufacturers being called out for improperly advertising H13 filters without actually using them, it’s great to see that Alen has sent theirs to be independently verified by LMS Technologies.

Alen BreatheSmart Flex HEPA Filter

The odor filter, which includes a carbon pellet and a specific catalyst to more effectively neutralize specific gases that cause odors, costs $30. 

For $50, you can choose the VOC/Smoke filters with the most pelletized carbon, which gives you 2.38 lbs of activated carbon.

We can compare these carbon amounts to other air purifier models:

Air Purifier ModelCarbon Amount
Winix 5500-2226g
Levoit Core 400S (Basic Filter)240ยฑ10g
Levoit Vital 400S (Smoke Filter)450g
Alen 45i Fresh Filter299g
Alen 45i VOC/Smoke Filter1079g
Dyson Big+Quiet BP06900g

The Alen VOC/Smoke filter has much more carbon than what we generally see from other air purifier brands, with even more than the much larger and pricier Dyson BP06.

Alen BreatheSmart Flex Activated Carbon Filter CloseUp

This filter choice at the point of purchase allows you to customize it to your specific needs.

Another highlight of Alen is that they have a lifetime warranty if you have an active filter subscription or can prove that you only used OEM filters for your device.

The pre-filter used is a black mesh layer connected with Velcro, which Alen recommends keeping in place for cleaning with a vacuum. However, I still prefer having a separate pre-filter that can be removed for cleaning, making life a little easier.

One final thing about Alen and filters is that I have a 2010 Alen model, the Alen A350. I was pleased to see that even though it’s been 15 years, you can still buy new filters directly from Alen! While the A350 is much more energy-hungry than modern devices, it can still clean the air well.

Installing the filter couldn’t be simpler. Open the front panel and slot in the filter with the pre-filter facing you.

Alen BreatheSmart 45i Back Panel

Tip

New filters will be delivered in a plastic wrapper. Be sure to remove this before installing it into your unit.

The Alen BreatheSmart 45i cleared our test room in 30 minutes

The results of our air cleaning performance, noise levels and airflow speed tests.

According to our Zen sensor, the Alen 45i needed 30 minutes to achieve PM1 zero in our 728 cubic ft. test room. We estimate a PM1 CADR of 198 cfm, which matches up well with the AHAM DUST CADR result.

how we test
How we test air purifiers

Read our full testing methodology.

The first test is the air cleaning performance test. We fill our 728 cubic foot office with incense smoke and time how long it takes for the purifier to reduce all levels of PM1.0ug/m3, PM2.5ug/m3 and PM10.0 ug/m3 pollutants to zero, with the help of two PurpleAir air quality sensors: the PurpleAir Touch and the PurpleAir Zen.

It took 30 minutes for the Alen BreatheSmart 45i to clean the air in our test room:

Air cleaning speed test results compared

We can compare this to other similar performing devices running at their top speed:

Time to PM1 ZeroList Price
Levoit Vital 200S23 minutes$189.99
Winix 5500-223 minutes$249.99
IQAir Healthpro Plus28 minutes$999.99
Alen 45i30 minutes$429
Dyson BP0630 minutes$899.99
Core 400S [European]30 minutes$292.79

The table shows that for raw speed at top speed, the Vital 200S and Winix 5500-2 offer more CADR at a lower unit price.

I also made sure to test the Alen 45i without the ionizer, and it also managed to remove all PM1 in 30 minutes. The ionizer function might be helpful for gases and odors, but according to our tests, it doesnโ€™t seem to improve particle removal performance.

Noise levels test results

Of course, performance means nothing if itโ€™s too loud to use. Hereโ€™s how the 45i stacks up in our noise tests.

If an air purifier is too loud, you will turn it off eventually.

Image 28 04 2024 at 11.40

When recording the decibel levels created by the 45i from 3ft away, we got the following results:

This compares well with other devices we have tested:

I also made a comparison with other devices that have similar performance:

Time to PM1 ZeroSound level at top speed
Levoit Vital 200S23 minutes57.7 dBA
Winix 5500-223 minutes58.9 dBA
IQAir Healthpro Plus28 minutes61.2 dBA
Core 400S [European]30 minutes55.9 dBA
Alen 45i30 minutes56.1 dBA
Dyson BP0630 minutes51.4 dBA

The Alen 45i is the fourth quietest on our list, but it is still 5 decibels higher than the Dyson BP06.

At speed two it hits 42.2dBA, which is below the 45dBA limit we use for our quiet test, and when we tested it again in our test room, is cleared all PM1 in 48 minutes, which we estimate a CADR of 123 cfm

We can compare these results with other air purifiers running at sub-45dBA:

Time to PM1 ZeroSound level at top speed
CleanAirKits Luggable XL23 minutes38.8 dBA
Winix 5500-2 [speed 2]43 minutes41.5 dBA
Levoit Vital 200S [Speed 2] 46 minutes41.9 dBA
Dyson BP06 [Speed 1]46 minutes40.4 dBA
Alen 45i [Speed 2]48 minutes42.2 dBA 
Core 400S [European]50 minutes44.4 dBA
IQAir Healthpro Plus [Speed 3]68 minutes40.9 dBA

When accounting for lower sound usage, the Alen 45i is on par with the best-performing midsize air purifiers.

But as with many HEPA retail devices, it just canโ€™t compete at low sound levels with devices like the Luggable XL, which use PC fans.

I also tested PM removal performance for the Alen 45i at Speed 3.

At Speed 3 it hit 51.1 dBA and cleaned our test room of PM1 in 36 minutes with an estimated PM1 CADR of 165 cfm.

You can see the results for all the different fan speeds here: 

Sound levels at 3ft awayTime to PM1 zeroHouseFresh CADR estimate
Alen 45i Speed 136.2 dBA144 minutes38 cfm
Alen 45i Speed 242.2 dBA48 minutes122 cfm
Alen 45i Speed 351.1 dBA36 minutes165 cfm
Alen 45i Speed 456.1 dBA30 minutes198 cfm

Alen claims it uses โ€˜pink noise,โ€™ which should sound smoother than regular white noise, especially when sleeping. But does it really sound better? I used a calibrated mic and audio analyzer to find out.โ€

Screenshot 2025 05 05 at 15.26.11

Using the spectrometer, I wasnโ€™t able to differentiate between the other models, but to my ears, the Alen 45i did have a smoother fan sound than the Winix 5500-2, which seemed to oscillate a little at lower fan speeds and top speed.

But have a listen for yourself:

The cost to run an Alen BreatheSmart 45i: $136.64

1. Electricity costs = $43.32 per year

As energy prices soar around the world, it’s never been more important to check how much electricity your new appliance will use. 

Image 28 04 2024 at 11.40 1

We used our energy meter to record how much energy the Alen 45i  uses when running at each fan speed and with and without its ionizer, and also while on standby.

Energy in Watts WITH IONIZEREnergy in Watts without Ionizer
Standby0.8 watts0.8 watts
15.1 watts4.4 watts
210.1  watts9.3 watts
22.8 watts22.3 watts
4 Top Speed38.7 watts38.5 watts

This compares well with other devices with similar air cleaning power levels, especially when looking at the amount of energy used.

Time to PM1 ZeroYearly energy usage at top speed
CleanAirKits Luggable XL23 minutes$11.66
Levoit Vital 200S23 minutes$49.48
Winix 5500-223 minutes$59.38
IQAir Healthpro Plus28 minutes$152.83
Alen 45i30 minutes$43.32
Core 400S [European]30 minutes$44.03
Dyson BP0630 minutes$36.66

2. Filter costs = $93.32 per year

Energy costs are not the only costs that add to an air purifier’s running cost; eventually, you will need to replace the filters.

Alen says you need to replace the filters for the 45i between 9 and 12 months, and as always, we will use the lowest estimate.

The recommended OEM Pure Filters cost: $69.99

This means the total filter costs for 1 year for the Alen 45i are $93.32

We can combine that with energy costs and compare it with other similar performing air purifiers:

Annual Energy Cost Annual Filter CostTotal Annual Running Cost
CleanAirKits Luggable XL-7$11.66$43.64$55.30
Levoit Vital 200S$49.48$49.99$99.47
Alen 45i$43.32$93.32$136.64
Coway Airmega 200M$85.56$39.98$125.54
Winix 5500-2$59.38$79.99$139.37
Levoit Core 400S [Europe]$43.32$99.98$144.01
Dyson BP06$36.66$157.98$194.64
IQAir Healthpro Plus$152.83$244.53$397.36

With OEM filters, the Alen is more affordable than the Dyson BP06, IQAir Healthpro Plus, and Winix 5500-2. However, it is more expensive than the Levoit Vital 200S, Coway Airmega 200M, and, as expected, the Luggable XL-2 from Clean Air Kits.

Be aware that these costs are based on the standard Pure filter that contains no carbon. I expect this particle-only filter to last at least 12 months in the average home environment.

Generic filters are available, and we had a chance to test the Pureburg version of the B4-Fresh, which does contain some carbon and paid ยฃ29.30 or ($39) for one filter and 4 pre-filters.

When testing top speed performance with the Pureburg filters, it took 40 minutes to achieve PM1 Zero. We know that using carbon with a particle filter will reduce the top speed CADR, but we donโ€™t know the total amount of carbon that Pureburg uses in this filter.

For most people, I recommend sticking with the OEM filters as Alen backs them, and it will also mean you keep the lifetime warranty. If you can, I would choose the subscription for 1 filter every 12 months, as you will also save 10% compared to buying when you need them.

Soโ€ฆ is the Alen 45i good for you?

Considering only the initial price and top-speed CADR, itโ€™s difficult to argue that the Alen 45i will ever be a top budget pick.

However, the Alen 45i does have some interesting benefits that could make it worth the extra price.

It has the same quiet fan speed performance as some of the best mid-sized air purifiers and fairly low energy usage, which means running costs are also on par with some of the best models.

The noise itself is also worth talking about.

Alen BreatheSmart 45i Bedroom

Many good-performing devices sometimes have strange whirring, especially when running on lower sound levels.

To my hearing, the Alen 45i has a more stable fan speed, which might be preferable to some people.

Another big plus for Alen is that they have been manufacturing air purifiers for over 20 years and are still providing filter support for their older models today. A big worry is that you buy a great-performing device that loses filter support in just a few years, and I donโ€™t have this worry with Alen.

Their lifetime warranty is also unique, but be aware that you must register and then use OEM filters via the subscription, or be able to prove that you have only used Alen filters on your device.

If you are looking for a more premium model and care about the type of sound produced, then the Alen 45i is well worth your consideration for rooms up to 300 square feet. Those with bigger spaces will need to upgrade to the Alen Breathsmart 75i with its dust CADR 351 cfm and I am looking to review the latest 75i very soon.

SOURCES

We calculated yearly costs associated with running Alen BreatheSmart 45i for 24 hours a day for 365 days. We ran this calculation utilizing the U.S. average utility rate of $0.1268/kWh as of May 5th, 2025

Ebac 3850e dehumidifier review

Ebac 3850e dehumidifier Dining room

Ebac (or Elliott Brothers Air Control) is a British company founded by John Elliott and his brothers in 1972. Within seven years, Ebac went on to reach a ยฃ1m turnover, becoming the leading UK brand for dehumidifiers.

Many of the dehumidifiers on the market are aimed at the United States or Asia and are designed for those particular climates, but Ebac is a specialist UK dehumidifier brand and that is the reason why I chose to review the Ebac 3850e.

I live in the middle of a national park in England, and our home is a stone house built in the 1870s. This means that we face high humidity levels all year round due to continuous rain and the fact that our stone home has been standing for over 150 years. Our situation requires a dehumidifier running 24/7.

Before I take you through my review, let me mention that we bought the Ebac 3850e with our own money, as we do with all the hands-on reviews we publish here at HouseFresh. We have no relationship with Ebac, so we can be completely unbiased in our assessment of this dehumidifier.

  1. We set up the dehumidifier inside our very humid basement of 2,000 sq. ft.
  2. We set up our trusted SensorPush wireless hygrometer to track humidity levels in the air every minute while the dehumidifier is running.
    how we test dehumidifiers Performance
  3. We switch the dehumidifier on to its highest speed and record how long it takes to lower the humidity levels in our basement.
  4. We use an energy meter to measure precisely how much electricity is used when running the dehumidifier.
    How we test dehumidifiers Sound
  5. We track sound levels emitted by the dehumidifier with the help of our sound meter.
    Honeywell TP70WKN Sound Test

The lowdown on the Ebac 3850e

Danny Ashton HouseFresh
“I live in the middle of a national park in England, and our home is a stone house built in the 1870s. This means that we face high humidity levels in our home that require a dehumidifier running 24/7. The Ebac 3850e has been running non-stop in our dining room since the end of 2021, and we have experienced zero issues. That is a testament to the quality built and efficiency of this device.”
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Ebac 3850e dehumidifier Dining room

What we really like

This is the highest capacity dehumidifier from Ebac, and it proved to be the perfect size for our seven-room house. 
It comes with an excellent 2-stage filter that will block dust and other smaller particles from entering the device.
The bucket has been designed to minimize water spillage.
It comes with a handy Smart Mode that works on the background based on the humidity levels in the room, helping to keep energy bills down.
The controls are simple and straightforward.
This dehumidifier is manufactured in the UK, compared to most units which are made in China.

What we think could be better

The water bucket has a 2.5-litre capacity, so when you first use it in a very humid environment, you will need to empty it once or twice daily.
Upon arrival, I noticed that the case had become disconnected from the main body. But this was an easy thing to fix.
It would be nice to see the hose and the wheels included in the package.

HouseFresh Rating:โ˜…โ˜…โ˜…โ˜…โ˜…
Water it can remove in a day:36.95 pints (21 litres)
Recommended room size:4800 sq. ft. (450mยณ)
Water tank capacity:2.5 liters
Dimensions (in inches / in cm):50H x 32.5W x 27.5D cm
Weight (in pounds / in kg):13 kg
Maximum noise level:46 dBa
Operating temperature (minimum – maximum):3ยฐc – 35ยฐc
Other features:Dust filter that will block smaller particles from entering the device.
Warranty:5 years

Compact design with the perfect water container

A simple, white dehumidifier with a tank that you are likely to have to empty every day

Ebac 3850e dehumidifier Close up

I mean, it’s a dehumidifier. It won’t win any interior design awards and it might clash with the dรฉcor of your home, but I personally like the curvy lines and the compact size.

That said, this doesn’t mean that Ebac didn’t put any time into the design of this dehumidifier. Perhaps the point is that they put some thought into the internals and also the most important element of any dehumidifier: its water container.

That’s right, my favorite part about the Ebac 3850e is its bucket.

Ebac 3850e dehumidifier Bucket side

You might think nothing of it but if you have used as many dehumidifers as I have you will know that the worst part of having a dehumidifier is emptying its bucket. Usually these things are bulky and prone to spilling water everywhere on the trip to the sink.

But as you can see in the photo below, the bucket in the Ebac 3850e has been designed to be easy to carry without making big messes.

Ebac 3850e dehumidifier Bucket top

The bucket in the Ebac 3850e has been designed to resemble a watering can or a water container that can easily be removed without water spillages. I actually use it to water my plants, so the handle comes super handy.

You can see how the design of the bucket makes emptying super easy:

On the back of the unit, you will find the filter and the cable, which can be easily tucked in to keep things tidy.

ebac 3850e back

In case you didn’t know, all dehumidifiers require some sort of filter system to protect the delicate internal parts of the device from being covered in dust or other small particles floating in the air.

The Ebac 3850e comes with a combination of filters that include both carbon and antibacterial filtration.

Ebac 3850e dehumidifier Filters

That means that your dehumidifier will be able to help clean the air at the same time it reduces moisture. Now, a dehumidifier will never be as effective at cleaning the air as an air purifier will, but this is a nice touch from Ebac.

You can see in the image below how chunky the carbon filter is:

Ebac 3850e dehumidifier Carbon

The filter system used by Ebac is something that I hope other manufacturers imitate. It would be excellent if this becomes the standard.

Tip

You should vacuum your filters every month to ensure optimum performance.

By the way, this unit doesn’t come with a hose or wheels, but the good news is that this is something you care about, you can just buy them separately, costing around $18 (or ยฃ15).

Smart controls not found in other dehumidifiers

The screen of the Ebac 3850e can feel a little confusing at first but it’s actually pretty straightforward once you start using it.

Ebac 3850e dehumidifier Screen

When you first look at the menu system for the Ebac 3850e, it can be a little confusing, but once you have had a chance to play around, itโ€™s pretty simple. 

One of the best features of the Ebac 3850e is the fact is the Smart Control mode. Most dehumidifiers allow you to set the humidity preference either as a specific percentage of humidity (like we saw in the Honeywell dehumidifiers) or as a set range (like we saw in the Delonghi dehumidifiers). 

According to Ebac’s marketing materials, there are three key elements of the Smart Control: humidity sensors that detect moisture levels, artificial intelligence that learns about the patterns of the moisture, and automatic settings that allow the dehumidifier to remove the right amount of moisture before it becomes a problem.

In simple terms, it means that rather than having a simple on-off mode, the Ebac 3850e continually keeps track of the levels of humidity and can make small adjustments to ensure your room is kept at the right level of humidity.

Ebac’s Smart Control results in a dehumidifier that consumes far less electricity compared to other non-smart dehumidifiers. Other dehumidifiers I have tested wait for humidity levels to reach higher levels before they kick in and this results in the devices working harder, consuming more electricity and generating more water. With Smart Control, Ebac helps you save money in the long run as your dehumidifier wonโ€™t be pushed as hard.

In the video below, I’ll take you through the different options on the display:

For most use cases you will just leave it on Smart Mode, and that will be the end of it.  You can adjust the fan system, but I found the Smart Mode to be fine for minor adjustments. 

The only other mode that I use on a regular basis is the Laundry Modem, which pushes the unit into a higher mode for a short period of time. It is perfect for when you have just put the laundry to dry. 

The Cost of Running the Ebac 3850e = $197.10 (or ยฃ156.95)

On the Ebac website, they mention that the unit costs 54 cents (43p) per day to run.

Iโ€™m assuming that due to the Smart Mode, Ebac has not shared specific watt usage, as it will vary dramatically depending on what the Smart Mode requires at the time.

Luckily, I used my trusted energy power meter to see how much actual energy the Ebac 3850e consumes when running at different modes. 

Ebac 3850e dehumidifier Electricity

On the normal Smart Mode, my Ebac 3850e pulled 148.2 watts. When I switched it to its highest mode, this increased to 160 watts. So that would be 88 cents (or 70p) per day at the lowest mode and 94 cents (or 75p) per day at the highest level. 

One thing to consider is that most of the time, your dehumidifier will not be active (especially if you run it on Smart Mode), so the 54 cents (43p) per day estimate from Ebac is fair.

Bottom line: Is the Ebac 3850e worth it?

The two standout features are the Smart Mode and the anti-spillage water bucket. These two features deal with two of the biggest pain points of having a dehumidifier. 

I never thought I would get excited about a dehumidifier, but Ebac has done something very special with the 3850e.

Ebac 3850e dehumidifier Dining room

With energy prices expected to increase, anything that can help to reduce bill costs is worth looking at. Most humidity issues donโ€™t go away, so you will have to run your dehumidifier every single day, which can make these long-term costs quickly add up. The Smart Mode in the Ebac 3850e guarantees that your energy bill won’t be impacted as much as it would if you were to choose a different dehumidifier.

The Smart Mode combined with the clever design of the water bucket, makes the Ebac 3850e my go-to recommendation for anyone looking for a dehumidifier in the UK. 

You can buy this unit from Amazon, but I would suggest buying it locally from a shop. And if that is not possible, you can also buy it directly from Ebac.

Pro Breeze 500ml Mini Dehumidifier Review

pro breeze mini dehumidifier review header

pro breeze dehumidifier review

On paper the pro breeze 500ml tank dehumidifier seems like the perfect dehumidifier – itโ€™s tiny, silent, and costs less than $50. 

But there is also a major fly in the ointment – it just canโ€™t remove enough water to have a meaningful effect on the environment.

I will show you some numbers from my experiments later in the review but let’s just look at the details from the Amazon product page. 

According to the details, it can remove 9 ounces of water per day – for those more visual, this is one of those small cups that come with an office water dispenser.

In comparison, the Honeywell TP30WKN can remove 600 ounces of water in the same period of time and can be regularly found for less than $200. 

On an ounce of water removed per $ – the Pro Breeze dehumidifier is $5.50 vs the Honeywell TP30WKN which is 33 cents per ounce! 

The performance per $ spent is massive but the biggest issue is that there seem to be no situations that would require such a small amount of water removal for most situations that require a dehumidifier. 

About our hands on tests

We donโ€™t accept free units from manufacturers as we donโ€™t want this to add undue pressure to give a more positive review than we would normally so we bought this Pro Breeze dehumidifier with our own money. As this review shows, if a unit doesnโ€™t perform we would rather make this clear to consumers rather than just say itโ€™s great as the vast majority of reviews out there (Google pro breeze dehumidifier review and you will see what I mean) our goal at housefresh.com is to make sure you end up with a dehumidifier that performs effectively for your budget/use case. 

Pro Breeze
Capacity
7 ounces per day or a small water cup from an office water fountain
Technology
16 ounce water tank with 0.55kW energy usage over 24 hours
Recommended Room Size
150 sq. ft
Weight
2.4 Ibs
More information
Price
$42.99
Pro Breeze
Capacity
7 ounces per day or a small water cup from an office water fountain
Technology
16 ounce water tank with 0.55kW energy usage over 24 hours
Recommended Room Size
150 sq. ft
Weight
2.4 Ibs
More information
Price
$42.99

Specifications:

  • How much water can be removed per day: 9 ounces per day which is the same as a small water cup from an office water fountain.
  • The size of the room recommended is 215 sq ft although in my tests I would suggest an even smaller space like a drying cupboard.
  • It doesnโ€™t include a filter as it probably doesn’t need it due to the small amount of air it can deal with.
  • It has a tank capable of holding 1.2 pints or 500ml – which means it will need to be changed every 2 days or so if used continuously.

The Look

pro breeze dehumidifer look at tank removed

This dehumidifier is super small and light so doesnโ€™t require a handle as it can easily be carried. 

Itโ€™s as simple as any dehumidifier can be with only two buttons – on and off.

This makes sense considering its level of performance and price as it would be unlikely to need to have a cut-off or dehumidification sensor as it would have such a small effect on the overall humidity of the room. 

Setup:

pro breeze mini dehumidifier review header

Out of the box, itโ€™s pretty much ready to go once you plug in the cable. 

One thing to note is that the green on LED is super dim and hard to know if itโ€™s on when in daylight. Combined with the quietness of this machine – itโ€™s hard to know if itโ€™s on or not.

Performance

As I noted in the introduction I did a test of this unit in a grow tent in my basement – which is 35 inches X 35 inches with a height of 4ft 11in to give us a total space of 44.25 square feet so well less than the 150 square ft recommended on the product page.

I used a Govee Wifi hydrometer to track the level of humidity over a period of 2 weeks.

pro breeze dehumidifier test graph in grow tent

I switched on the pro breeze dehumidifier from 8th September and then swapped it out for a larger dehumidifier on the 19th of September which accounts for the large drop as the larger Delonghi dehumidifier showed what a real dehumidifier will do in a small space like this. 

I certainly didnโ€™t expect that this unit was going to perform super well compared with units that were 4 times more expensive but I did expect it to have some marginal effect on the humidity in such a small space. 

Sadly the results speak for themselves and I just canโ€™t think of a scenario where this dehumidifier would be useful – even an RV or bathroom is a much larger space than my grow tent so I expect the results would be even worse. 

What I love:

  • The price – itโ€™s the cheapest dehumidifier on the market but as the review shows this does also come with downsides.
  • Itโ€™s super small so could be used in a very small space if say you had an issue with damp in a kitchen cupboard

What I donโ€™t like as much:

  • Performance is just not enough for most practical use cases for a dehumidifier for most people.
  • The green on LED is super dim and hard to see in daylight
pro breeze dehumidifier side shot

Bottom Line

I really wanted to love this dehumidifier as its price and promise sounded like exactly what I needed for keeping my grow tent air dry without a large chunky expensive dehumidifier. Sadly it was too good to be true and as my tests showed it is near useless in most spaces you need a dehumidifier. 

If you do have a very strict budget then I would recommend something like the SEAVON 2000ml which can be found for less than $90 and able to remove way more water and has a water tank that is twice the size for not a lot of extra money. 

But in most other cases, I would recommend pushing your budget and going for a more traditional dehumidifier like the Honeywell TP30WKN which can be found for under $200 and is much heavier but is light years ahead with performance when it comes to removing water from the air. 

So sadly this is a dehumidifier that I would avoid unless you have a very specific case where you need a very small dehumidifier for a very small space.

Pro Breeze Dehumidifiers for Home,215sqft Small Dehumidifiers for Room,16oz Tank Portable Closet Dehumidifier Removes Humidity Mini Small Dehumidifier for Bathroom Dehumidifier for Bedroom RV Basement
  • SMALL & COMPACT: Our lightweight and portable dehumidifier for home is capable of removing up to 9 ounces of water per day with a 16-ounce water tank capacity. Ideal size bathroom dehumidifier for rooms of 1200-2200 cubic feet (215 sq ft).
  • SAFE AUTO SHUT OFF: Our dehumidifiers for bedroom are ideal in small spaces and rooms. When full, the dehumidifier will automatically shut off and the LED light will turn-on indicating the water tank needs draining
  • ULTRA QUIET & EFFICIENT: Get the best of your dehumidifier for home and experience Whisper Quiet Operation in bedrooms, bathrooms and offices. Power usage of just 23W per hour! This dehumidifier has a running cost of just $0.07/day! The ideal solution to humidity in your home!
  • EFFICIENTLY LOWERS HUMIDITY: Perfect dehumidifier for high humidity in your home, kitchen, bathroom, bedroom, caravan, garage, closet. Like all mini dehumidifiers, optimal operating temperature is 59-86ยฐF. It will not work below 41ยฐF.
  • AWARD WINNING BRAND: Pro Breeze is a world leader in small dehumidifiers for bathrooms, bedrooms, RV, Basements and was awarded one of America's Best Home and Garden Brands in 2022. Trust Pro Breeze - the only dehumidifier you need

Honeywell 30-Pint TP30WKN dehumidifier review

Honeywell TP30WKN Living Room

In winter our home gets super damp so I wanted a way to control the humidity in the bedroom as my wife and child both suffer from asthma and excess humidity can be a trigger for them.

I was attracted to the Honeywell brand as I have tested multiple air purifiers from them. Plus, Honeywell is a brand that has been going since 1906 so it inspired trust.

If you have ever looked on amazon.com for dehumidifiers itโ€™s full of brand names that are often very strange sounding Chinese sellers selling generic units (COSVII, SEAVON, Donatello, LEEL, etc.) There is nothing inherently wrong with these units but for my bedroom dehumidifier, I wanted to go with a brand I trusted and had my back if anything went wrong and Honeywell provides a 5-year guarantee.

As with all the hands-on reviews we do here at HouseFresh, this unit was bought with our hard-earned money so we donโ€™t have a bias to give a more positive review to keep the manufacturers happy. If this dehumidifier stinks, we have no problem with telling you so that you can find a model that does the job for your needs and budget.

The lowdown on the Honeywell TP30WKN

Honeywell TP70WKN Front

Danny Ashton HouseFresh
“If you are looking for a dehumidifier for a fairly small space like a bedroom, then the TP30WKN might be one of the best options available.

Sadly due to its popularity, the price can be higher than the usual retail price, so it is always worth checking it against large units like the TP50WKN as they sometimes can be found for the same or cheaper price.”

โ€” Danny Ashton, HouseFresh Founder & Senior Writer

If you don’t want to read my full review, here are the things I like about this dehumidifier and the things I don’t:

CONS

The 7-pint tank will need emptying multiple times in a 24-hour period if you canโ€™t use the continuous hose.
Smart functionality and app connectivity is not worth paying for.

PROS

It can remove 20 pints per day, which is around 10 large McDonald’s sodas โ€” a fair amount of water.
It comes with a 5-year guarantee, which is not something you usually see for a dehumidifier at this price point.
Easy to use โ€” it took me less than two minutes to get my head around the settings. 
The filter clips easily without requiring too much pressure.
The handle and wheels make it super easy to move around
It includes a filter for trapping dust coming into the unit, which will need to be replaced/cleaned on a regular basis.

The design

The TP30WKN includes a few key touches that make a big difference.

Honeywell TP70WKN Above

It looks like what you’d expect of a dehumidifier, with the control panel on top and the bucket accessible through the front.

You get a continuous drain tube so you donโ€™t have to rely on the tank capacity (seven pints) and end up emptying the bucket multiple times per day.

Honeywell TP70WKN Tray

Inside the box, you will also find two accessories you can use for mounting it on your wall. I didn’t mount it on my wall but it is definitely something useful if you plan to use it in one location 24/7.

I really like it comes with a chunky handle and wheels, as this makes it easy to move to another room – although, do make sure you empty the bucket as it is super heavy when it’s full of water!

Honeywell TP70WKN Handle

All dehumidifiers need to pull air from the room around them so this also means they pull in any dirty, dust or other nasty things in the air. Thankfully this dehumidifier includes a filter so it catches these before they create problems inside the machine. You do need to keep it clean so remember to clean it on a regular basis.

Unlike air purifiers, dehumidifiers donโ€™t clean the air but this also means you donโ€™t need to spend extra on filter replacements.

From a day-to-day operation perspective, the TP30WKN is fairly simple to use:

Honeywell TP70WKN Controls

From left to right, we have a filter clean light that will light up when the filter needs cleaning manually. 

Next, you get a button to adjust fan speeds. A tip: you will want maximum when you first use it and then reduce it during the night to keep the sound to a minimum. 

Then, you get a button to set the humidity level you want to achieve. So if you set it to 60% humidity, the TP30WKN will come on and off until it achieves this level. This means that you will spend less on electricity compared to setting it to run 24/7 on high.

You also get a timer button that allows you to set a timer for the device to automatically switch off, Next to that, you get a sleep mode button, which switches all the lights off.

Tip

When you first unbox it, the continuous drain pump hose is actually tucked inside the water tank. Make sure you remove it before turning on the dehumidifier – although the guys at Honeywell make this super clear with the instructions.

Tp30WKN instructions

There are two options for this dehumidifier, the TP30WKN and TP30AWKN. The AWKN is the one that includes a smart app. If you have read my reviews, you will know I am not a big fan of apps for simple devices like this and this is no exception. The app requires details for registration and the app itself has very poor ratings on the Google Play store:

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For the extra money that the โ€œsmartโ€ version requires, I would just invest in a smart hygrometer sensor like Govee H5179 as it has a ton of features for less money than the โ€œsmartโ€ version of the Honeywell 30 pint dehumidifier.

Cost of running the TP30WKN: $306.57 per year

If you use this unit with the supplied hose, itโ€™s able to run continuously. If not, it will automatically shut off when the included 7-pint tank fills up – which will be more than twice every day, so it really becomes a chore if used in this way.

Based on our tests, it can remove 20 pints per day, which is around 10 large McDonald’s sodas โ€” a fair amount of water.

Honeywell TP70WKN Bottom

When running 24/7, it will pull 276 watts on the lowest fan setting. This will translate to $306.57 per year, which isnโ€™t bad when compared with older units that are used far more power to achieve the same level of dehumidification.

Bottom line: Is the Honeywell TP30WKN worth it?

It has everything you will need from a dehumidifier such as a timer, sleep mode, and a continuous hose for those wanting to use it all the time. 

Honeywell TP70WKN Top

30 pints is perfect for those wanting something that is still portable but doesnโ€™t expect it to be able to dry out a large basement of an open plan room. If you do want a similar unit for a larger space, then check out the TP50WKN and TP70WKN which have 50-70 pint capabilities but are much larger and wonโ€™t be as easy to carry to different rooms.

The big issue for this unit is the supply chain issue with a lack of supply meaning that this unit regularly being out of stock and often priced higher than the bigger 50-pint units so be sure to do your research and donโ€™t overpay. I honestly donโ€™t think that smart edition – TP30AWKN is worth the extra $30 so just go for the standard model that is regularly priced at sub $200. 

Blueair Blue Pure 411 review

Blueair Blue Pure 411 Living Room

Founded in Sweden by Bengt Rittri, Blueair has been around for over 20 years. Rittri wanted his children to breathe the same clean Stockholm Archipelago air while they spent time in the city. Thus, faithful to this vision, he started the company, creating simple and efficient air purifiers inspired by nature.

Back in 2016, Blueair became a Unilever brand. According to Rittri, the global company would help expand Bluairโ€™s capability to reach more people in need of simple and affordable solutions for air pollution. The brand obtained a B Corp certification in 2023 with a clear mission of improving air quality in homes, schools and offices worldwide, focusing on childrenโ€™s right to clean air.

I love the social and environmental commitment of the brand, as well as Rittriโ€™s belief that freedom to breathe is a basic right. But weโ€™re not here for the charms and chimes of brand positioning and marketing. 

When it comes to cleaning power, Blueair mixes simplicity with efficiency and offers an array of models for different space sizes. All units, however, feature the trademark HEPASilentโ„ข Technology that combines electrostatic and mechanical filtration. Iโ€™m not a big fan of ionization, but weโ€™ll get into that later.

As for the Blue Pure 411, itโ€™s better suited for small rooms. Itโ€™s worth noting, though, that since Blueair became part of the Unilever family, its product range has broadly expanded. The launching of the Pure Max line in 2023 replaced some of the older models, including the Blue Pure 411. 

With such a prolific portfolio, navigating models can be a bit confusing, especially regarding filter replacements. Blue Pure 411, 411 Auto, and 411+ are three separate models but share the same filter; the 411a Max, on the other hand, use different ones. In a core comparison, however, they are not that far apart: the CADR rating, filter mechanism and Blueairโ€™s HEPASilentโ„ข Technology are scarcely different when not the same.ย As of 2025, Blueair has released a smaller Blue Pure 511i Max ‘s that is cheaper and has a lower CADR.

how we test
How we test air purifiers

Read our full testing methodology.

But if youโ€™re here, you probably want to know more about the Pure 411 and its performance. So, let’s get to it.

The lowdown on the Blueair Pure 411

Innovative concept but has no outstanding cleaning power.

Danny Ashton HouseFresh
โ€œA very efficient device thanks to its HEPASilentโ„ข process that combines an ionizer with a lower-grade filter than HEPA. This means it can clean the air quickly and with a low level of noise generation. The only downside is that you can’t disable the ionizer; something to be aware of if you just want mechanical filtration. A little outdated now with much lower air cleaning performance ratio when compared with the latest budget devices.โ€
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Blueair Blue Pure 411 Drawers

PRICE on BlueAIR

Weโ€™ll delve into a detailed analysis of the Blue Pure 411, covering design, performance and noise output, among other things. But if you want to know black over white, our take on the pros and cons of the unit, check out the chart below:

What we really like

Made the 2024 Energy Star Most Efficient list, for its low energy consumption.
The washable (and interchangeable) pre-filter is functional and stylish.
Straightforward operation with the one-button control.
Itโ€™s lightweight and compact.

What we think could be better

It is not a fast unit, nor does it have a high CADR.
Thereโ€™s no option to turn off the ionizer.
Not having a protecting grill for the filter makes it somewhat fragile.

The specs

The range of small air purifiers was much more limited when the Blueair Blue Puro 411 was launched. It wasnโ€™t the most budget-friendly air purifier back then, but its CADR was ok (120 CFM) compared to other popular small units, such as the Levoit Core 200S (118 CFM). 

However, the standout point of the Puro 411 was the original design that disrupted the scene with lively colors and scandic aesthetics.
Since the newer Max Pro line became the key product Bluair focuses its communication on, the Puro 411 can now be found at $119 on Amazon โ€” although still more expensive than the reliable Levoit Core 300 or newer and highly efficient units like the Winix A230.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):1 hour and 8 minutes
Air purifier technology:Washable pre-filter, activated carbon filter, HEPASilentโ„ข filter + Ionizer technology
Recommended room size (4.8 air changes per hour):161 sq. ft.
Clean air delivery rate (CADR):Dust: 120 CFM
Smoke: 105 CFM
Pollen: 120 CFM
Dimensions (in inches / in cm):16.7H x 8W x 8D inches (42H x 20W x 20D cm)
Weight (in pounds / in kg):5.3 lbs (2.4 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 36.2 dB
Speed 2: 42.1 dB
Speed 3: 53.1 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0 watts
Speed 1: 0.9 watts
Speed 2: 2.9 watts
Speed 3: 7.8 watts
Speed 4: 10 watts
Estimated running cost (electricity consumption + official filter replacement):$57.03 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.49
Manufacturerโ€™s warranty:1 year
Country of manufacture:Designed and engineered in Sweden, assembled in China

Minimalistic build, playful design

A thoughtfully engineered structure with customizable looks, although somewhat on the flimsy side.

Blueair Blue Pure 411 Side Table 1

Blueair was created with children in mind. It only makes sense that the original Blue Pure line is so colorful and lively yet has straightforward controls. I opted for the Diva Blue fabric pre-filter (which brings this iconic Diva to mind), but there are six colors to choose from, ranging from buff yellow to a sober dark gray for those who prefer a more subtle approach.

Blueair Blue Pure 411 vs 411

The top white cylinder houses the fan and ionizer, crowned by an organic-shaped control panel. The lower body accommodates the pre-filter and main filter, which fit neatly into a plastic honeycomb structure. The rounded body allows for an efficient 360 air inlet, while the clean air is then released from the top grill.

Blueair Blue Pure 411 With FIlter

Designed for ergonomic efficiency with the minimum amount of elements, the Pure 411 is both compact and lightweight (5.3 lbs). As the smallest unit of the Blue Pure line, it will easily fit even in tiny rooms, not using up too much space, while it weighs close to nothing to move around. 

Comparison Photo Blueair Blue Pure 211 VS 411 VS 311

However, this also means the structure requires gentle handling as thereโ€™s no outer casing or grill to protect the filer when manipulating the unit. Besides, most of the weight is at the top cylinder, so itโ€™s somewhat flimsy and easier to tip over. 

Simplicity peaks with the control panel. Thereโ€™s only one button on the Blue Pure 411 to switch on and off and cycle through three fan speeds. Thatโ€™s right, even the young members of the family could operate it. 

Blueair Blue Pure 411 Control panel

Press the big round button once to start the air purifier at the lowest speed; a second and third press will step up the unit to the following fan speeds. One last touch will switch it off. The white LED lights around the button indicating the speed itโ€™s on will dim after seven seconds of no interaction. 

This is one of those nice touches that show how thoughtful Blueair designers are, especially if youโ€™ll be placing the unit in the bedroom. For that matter, however, it would be nice to have a no-lights function.

Although the one-button control is modest and straightforward, the Pure 411 has a built-in memory, so if you unplug the unit, the unit will remember your settings once replugged. Yet, this is the only โ€œsmartโ€ feature, as thereโ€™s no auto mode, timer or app support. 

Blueairโ€™s trademark HEPASilentโ„ข filtration system

Whatโ€™s this technology all Blueair purifiers feature? 

In short, HEPASilentโ„ข technology is no more than a HEPA-type filter boosted by an ionizer. Itโ€™s a bit misleading, as the filter is not a real HEPA. But many brands coin creative names for their products using keywords we look out for to feel secure about our purchases. With this trademark, brand communications can use the word without the certification required for it to be real HEPA.

Blueair Blue Pure 411 HEPA Filter

Blueair filters are less dense than HEPA. This is not all bad, as a thinner filter media requires less power to create an airflow capable of passing through it. Thatโ€™s how their units can clean the air with low energy consumption and more silently โ€”hence the HEPASilentโ„ข.

But to remove 99.97% of airborne pollutants, this type of filter is not enough. Thatโ€™s why Blueair combines mechanical (HEPA-type) with electrostatic filtration. An ionizer within the fanโ€™s hood produces an electrostatic discharge, releasing ions that attach to airborne pollutants making them stickier and heavier, thus easier for the unit to capture and filter.

The downside of this technology is that it produces ozone as a byproduct. According to Blueairโ€™s website:

All Blueair air purifiers are CARB certified which means that they are considered safe and do not exceed ozone emission limits.

Not exceeding ozone emission limits isnโ€™t the same as not producing ozone at all. And then, even a slight amount of ozone can react with common gasses found in every home (including fumes from cleaning products) and produce further VOCs such as formaldehyde.  

However this type of combination device is unlikely to introduce any ozone as the particle and carbon filters will help to remove the ozone from the ionizer before it leaves the device. The larger 211 of the Blue Pure series has a certificate showing that it produces zero ozone emissions โ€”check the certificate at Intertekโ€” so we can assume the same with this smaller device in the series.

Sadly, the ionizer cannot be switched off on Blueair purifiers. Both technologies are engineered to work together, unlike other units that have an ionizer as a plus (such as the Winix Plasmawave).

Blueair Blue 311 Activated Carbon Filter

The filters also feature an activated carbon layer, although itโ€™s an impregnated fabric instead of granular or pelleted charcoal.

Blueair Blue Pure 411 Carbon Filter

This media is not robust enough to deal with serious odor or VOC issues, but it will help with mild everyday smells.  

Lastly, thereโ€™s the outer pre-filter that traps bigger particles such as lint, dust and pet fur before they reach the mail filter. Washable prefilters are a functional upgrade as they can be thrown into the washing machine or vacuumed easily. Blueair recommends cleaning the pre-filter every three months to extend the lifespan of the main filter.

Now, the steps to change the Blue Pure 411 filter are somewhat different compared to other more traditional air purifiers. But the process is still pretty straightforward. 

After six months of continuous use, the LED lights on the one-button control will turn red, indicating itโ€™s time for a filter replacement. After unplugging the unit, unscrew the top cap with a gentle twist. Remove the fabric pre-filter and pull out the main filter using the tabs on the sides. Place the new filter on the plastic structure, then the pre-filter and finally, replace the cap.

Tip

Like with most air purifiers, Blueair filters come sealed in a plastic bag to protect them until itโ€™s time they get to work. When unboxing your new Blue Pure 411, make sure to remove any packaging from the inside of the unit before running it. The same applies to filter replacements. Otherwise, the unit wonโ€™t be able to operate properly.

The Blueair Blue Pure 411 cleared our test room in 68 minutes

Silent and easy to look at, but far from being the fastest.

Blueair Blue Pure 411 Test

We often find that brands claim (and big publishing companies spread all over the internet) far more than their products actually deliver. Thatโ€™s why, at HouseFresh, we like to take things into our own hands. 

We conduct our performance tests in our 728 cubic ft. home laboratory. What does the HouseFresh testing process involve? We first generate pollutants by burning incense sticks. The PurpleAir Touch Indoor Air Quality Monitor โ€”one of the most accurate sensors in the marketโ€” then helps us track how fast (or slow) each unit removes the PM1, PM2.5 and PM10 produced by the incense smoke.

As all of our tests are conducted in the same space, we can easily compare results across units. 

Now, without further ado, let’s get a look at the data:

Air cleaning performance, compared

Cleaning speed is a good indicator to asses an air purifierโ€™s performance. Knowing the Blue Pure 411 took 68 minutes already gives us an idea of its efficiency. But it’s usually not as graphic as comparing it with other units. 

Letโ€™s start by saying the Blue Pure 411 is an air purifier designed for small rooms. According to the Energy Star testing, it can achieve five air changes per hour in spaces of 163 sq. ft, with a CADR rating of 120 CFM. 

Itโ€™s only fair, then, to compare its performance with other small air purifiers. The most straightforward comparison is with its upgraded version, the Blue Pure 411+ (which is not the 411 Auto nor the 411 Max models). The 411+ is not only 25 minutes faster, but it also comes with smart features and app support. 

The Levoit Core 200S is another similar unit that, with a lower CADR (118 CFM) and for less money, cleaned our lab seven minutes faster than the Blue Pure 411. Besides, Levoit units only use mechanical filtration.

Itโ€™s not all bad news, though. There are slower air purifiers on the market, such as the Aroeve MK01 or the $700 Dyson PH03. In truth, neither of these are air purifiers we recommend. But, then, speed is not the only determining factor in choosing an air purifier. Other aspects of the Blue Pure 411 make it a suitable option for small roomsโ€” take the noise output, for example.

Noise levels test results, compared

Using a commercial sound meter, we registered the decibels (dB) emitted by the Blue Pure 411 at every fan speed from three ft. away. 

The HEPASilent โ„ข technology is indeed quiet, at least to a certain extent: at its lowest fan speed, the noise output was 36.2 dB โ€” which is equivalent to a soft whisper. Plus it gets quieter in Sleep Mode. In fact, you need to be really close to the unit to hear its hum in this setting. 

But then, at top speed, there’s a noticeable change. The dB rises to 53.1 dB at its fastest. For reference, 50 dB sounds like a quiet office.

With these results, I can only say the Blue Pure 411 delivers the Silent promise to a limited extent. Yes, at 36.2 dB is fairly quiet. But then, we should factor in the fanโ€™s power at each speed.

As you can see, the airflow changes drastically among speeds. It can be quiet at the lowest, alright, but the cleaning power is significantly reduced. With that fan power, the small Blue Pure 411 would make little changes to your air. 

Besides, the AHAM CADR testing is always done at an air purifierโ€™s highest speed, meaning that the unit should be running at top speed to achieve the 120 CFM and five air changes per hour in a small room.

But decibels are a rather abstract measurement. And perception of sound varies from person to person. Thatโ€™s why weโ€™ve recorded the unitโ€™s noise output. Hear the Blue Pure 411 in action for yourself.

The cost to run a Blueair Blue Pure 411: $57.03 per year

An outstandingly energy-efficient unit with affordable replacement filters.

1. Electricity costs = $15.25 per year

The initial purchase price is only one variable to determine if an air purifier is a good investment. Then thereโ€™s the fixed costs youโ€™ll be facing in the long run, including energy consumption and filter replacements.

In terms of electricity costs, Blueairโ€™s HEPASilentโ„ข technology is remarkably efficient. The Blue Pure 411 is no exception: it made the 2024 Energy Star Most Efficient list, which features the yearโ€™s most energy-conscious appliances. For a somewhat old model, this is saying a lot.

The 411โ€™s power consumption ranges from 0.1 W to 10 W at the lowest and fastest speeds, respectively. This means that if you were to use the unit all year round, 24/7, at top speed, the cost would be $1.3 a month. To put it into perspective, an average LED light bulb uses about 10 watts. Not bad at all.

2. Filter costs = $41.78 per year

In addition to energy usage, itโ€™s important to factor in the filter costs. Eventually, all HEPA (and HEPA-type) filters need replacement. The airborne pollutants trapped by the air purifier accumulate on the filterโ€™s surface โ€” which, in the long run, becomes clogged with those same filtered particles. 

Now, the frequency of filter replacement depends on how much you use the unit and the level of air pollution in your area. But as a general rule, Blueair recommends changing the Pure 411 filters every six months. This brings us to two filters per year, summing up to $41.78 if you buy the original ones.

When compared to similar units, Blueairโ€™s filters are reasonably priced. The Levoit Core 200S and 300S filters, for example, cost between $25 and $30, slightly varying on the unit. Then, the Winix A230 replacement filters can be found at $49.99, although you need to replace these only once a year.

Blueair Blue Pure 411 Auto, 411, 411+ Genuine Replacement Filter
  • Genuine Blueair replacement filter designed for Blue Pure 411 Auto, 411, and 411+
  • Particle + activated carbon filtration helps reduce allergens, dust, and odors

Besides, as the Blue Pure 411 has been around for quite a long time, there are plenty of generic, cheaper options available. Although weโ€™ve only tested the unit with genuine Blueair filters, so we cannot vouch for their performance.

Sale
Blueair Blue Pure 411 Auto, 411, 411+ Generic Replacement Filter
  • Compatible : Premium PARTICLE and ACTIVATED CARBON filter Fits the Blue Pure 411, 411+ and Mini Air Purifier.Get back to having a clean air to breathe again!
  • Particle Filters ๏ผšPARTICLE filters can remove large and airborne particles, including dust, pet dander, common pollutants, and fabric fibers.

Bottom line

Thereโ€™s a playfulness about the Blue Pure 411 that makes it unique.

The simple one-button control adds the perfect touch to that lively flair I miss in the new Blueair Max line. The brand has taken a more sober turn on the latest designs, aligning with current trends that demand desaturated colors and textures. But I kind of miss the old cheerfulness. 

Blueair Blue Pure 411 Hallway

In terms of performance and functionality, the Blue Pure 411 is compact, has low running costs and operates reasonably well. All these features make it a good choice for small rooms like bedrooms. 

However, if you prefer pure mechanical filtration, then the Levoit Core 300 (or 300S if you would like to upgrade to a smart unit) is one reliable unit I know I can trust. Then, if you are looking for an air purifier for bigger rooms, Iโ€™d take a look at the Levoit Vital 200S, which can achieve five air changes per hour in 375 sq. ft. in 21 minutes.

SOURCES

We calculated yearly costs associated with running the Blueair Blue Pure 411 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of April 2024.

Levoit LV-PUR131 review

Levoit LV PUR131 Hallway

Levoit has been making waves in the air purifier market since they first arrived in 2017 thanks to the quality of their air purifying technology at an accessible price. Levoit’s air purifiers perform at the level of much more expensive units from older, more well-known brands.

Levoit changed my view on โ€œcheapโ€ air purifiers with their Core 300, so I was VERY excited to test a larger unit: the LV-PUR131. 

At $180, the Levoit LV-PUR131 seems like an excellent option for cleaning the air in a medium-sized room with a unit that includes features like automatic mode, which are normally only found on units that cost well over $200. After seeing glowing reviews for this unit on Amazon, I decided it was time to test it.

As with all our reviews here at HouseFresh, we bought the Levoit LV-PUR131 with our own money to make sure we would be free to give our unbiased opinion.

We also bought the unit so we could test its air cleaning performance in our home lab. That’s right, unlike the vast majority of air purifier reviews you will read from ‘reputable’ lifestyle magazines or even tech sites, I actually tested the LV-PUR131 as opposed to just describing it based on the marketing materials from Levoit.

how we test
How we test air purifiers

Read our full testing methodology.

This is to say that you can rest assured that this review is impartial and that you will read an accurate account of the unit’s pros and cons. 

The lowdown on the Levoit LV-PUR131

Danny Ashton HouseFresh
“At this point in the history of Levoit, there are better options than the Levoit PUR131.
The LV-PU131 is underpowered, it pulls a lot of energy (which will add to long-term costs), and I have received reports from readers who explained various issues they experienced with this unit outside the warranty.
My Levoit PUR131 hasn’t broken yet, but it lives in my basement, so it doesn’t get used as often as other units I’ve got in my home.”
โ€” Danny Ashton, HouseFresh Founder & Senior Writer
Levoit LV PUR131 Bedroom

PRICE on amazon PRICE on LEVOIT

Donโ€™t want to read the full review? If you can find the Levoit PUR131 in stock and have a room size of 500 sq. ft, this is the best performance air purifier you can get without spending more than $180.

What we really like

The simple touchscreen control panel is easy to understand and use.
It comes with an on-board air quality sensor and an LED air quality indicator (but it will only work when on auto mode).
It’s light and easy to move around the house.
It is one of the few Levoit units you could find today with a separate set of filters โ€” the particle filter is separate from the activated carbon filter.

What we think could be better

It is underpowered compared to other more modern Levoit devices, such as the Levoit Vital 200S.
It doesn’t come with a pre-filter for capturing larger particles. This is unfortunate as pre-filters extend the life of main particle filters.
Something small, but that matters to me as I have two young children in the house: the controls don’t include a child lock.

HouseFresh rating:โ˜…โ˜…โ˜†โ˜†โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):60 minutes
Air purifier technology:Main particle filter and activated carbon filter
Recommended room size (4.8 air changes per hour):152 sq. ft.
Clean air delivery rate (CADR):Dust: 102 CFM
Smoke: 98 CFM
Pollen: 138 CFM
Dimensions (in inches / in cm):18.5H x 14.6W x 7.2D inches (47H x 37.1W x 18.3D cm)
Weight (in pounds / in kg):11.22 lbs (5.1 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Sleep mode: 37.5 dB
Speed 1: 39.9 dB
Speed 2: 45.2 dB
Speed 3: 50.5 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 1.9 watts
Speed 1: 11 watts
Speed 2: 18.8 watts
Speed 3: 29.7 watts
Estimated running costs (electricity consumption + filter replacements):$108.58 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$2.89
Manufacturerโ€™s warranty:1 year
Country of manufacture:China

A boxy and dated design from Levoit

When it comes to design, the LV-PUR131 is more of a plain Jane than a showstopper. 

Levoit LV PUR131 Close up

The LV-PUR131 is a simple-looking, white and boxy air purifier that stands just under half a meter tall and has oversized branding across the top corner. It certainly looks like what most people probably think of when they think of an air purifier.

It isnโ€™t the worst-looking unit I’ve seen but it definitely looks plain and boring compared to the Smart Air S, which combines different materials, design lines and textures.

Levoit LV PUR131 VS Smart Air Sqair Air 1

The Levoit LV-PUR131 has an easy-to-navigate touchscreen control panel on top of the unit. Each button has a clearly labelled icon, so you will quickly figure out how to operate the air purifier straight out of the box with little instruction.  

You can turn the machine on/off through the control panel and cycle through its three fan speed settings:

Levoit LV PUR131 Controls

For use during the night, you can hit the Display button to turn off the LED lights and press Sleep to switch the fan speed to its lowest fan speed, which only emits a whisper-like sound at 27dB. 

The unit also comes with a programmable 12-hour timer so you can leave the unit to run without worrying about switching it off again. 

While the Auto setting utilizes the inbuilt air quality sensor to monitor for pollutants and automatically adjust the fan speeds for minimal fuss and maximum peace of mind. 

Three stages of filtration

The LV-PUR131 is one of the few Levoit units with separate particle and gas filters. We wish they did this for more devices.

Levoit LV PUR131 Filter change

Before purchasing an air purifier, it is important to know what filters the unit uses and what effect they will have. The LV-PUR131 comes with a main HEPA-like particle filter and a large pelletized activated carbon filter.

The primary filter will capture ultra-fine particles commonly found indoors, such as dust, pollen and mold spores. It is worth mentioning here that Levoit has removed all mentions of HEPA from its advertising and marketing materials after Dyson complained to the BBB National Programs National Advertising Division.

As I briefly mentioned above, the LV-PUR131 also comes with an activated carbon filter. This layer of filtration will tackle volatile organic compounds (VOCs) such as chemical fumes, smoke, and household odors. 

My favorite thing about the filters in the LV-PUR131 is that they are two separate filters, which means that you won’t need to throw away both filters if you only need to replace one. Most other Levoit units come with bonded filters, where you get one chunky filter with one side for particles and another for gasses. The biggest issue with this is that activated carbon filters generally have a shorter lifespan, so in many cases with units like the Levoit Core 400S or the Vital 200S, you will need to get rid of the entire thing, even when the particle filter might still be effectively removing particles.

All this to say, the filter setup in the LV-PUR131 is definitely a pro.

Tip

At the risk of stating the obvious, we always like to remind readers that the filters will come in plastic wrapping that needs to be removed before using the air purifier. As the filters usually come delivered pre-fitted, this often trips users up as they think they are ready to use. 

Simply remove the filters, remove any packaging and re-fit, and then youโ€™re good to go.

The Levoit LV-PUR131 cleared our test room in 60 minutes

This was impressive when we first tested it, but four years later, the air cleaning speed of the LV-PUR131 is not good enough.

To put an air purifier through its paces, we utilize our home office, which measures up to 728 cubic ft, so it is roughly the same as a small to medium-sized bedroom. 

We burn incense sticks to fill the room with airborne pollutants and measure how quickly the purifier can remove all PM1.0ug/m3, PM2.5ug/m3, and PM10.0 ug/m3 particles using our indoor sensor from Purpleair

We keep these conditions the same for each test, allowing us to compare and contrast different purifiers and see which unit performs the best in a home setting against common pollutants. 

Let’s see how the LV-PUR131 did:

Once the incense had finished burning at 12:15pm, we recorded the number of pollutants in the room, with levels reaching:

  • PM10.0 – 1847.99 ug/m3 
  • PM2.5 – 1577.53 ug/m3
  • PM1.0 – 581.41 ug/m3

We then fired up the LV-PUR131 at its highest speed, allowing it to tackle the airborne pollutants head-on. 

Within 60 minutes, each particle reading had reached 0.0, showing that within one hour, the unit had performed three air cycles and removed all traces of pollutants.

Air cleaning performance, compared

When comparing these results to alternative purifiers within a similar price range, we found the Levoit eradicated all pollutants faster than the Blueair Blue Pure 411, which took 1 hour and 8 minutes and the GermGuardian AC4825, which took 1 hour and 44 minutes. 

However, the Levoit Core 300 (which is $100 cheaper than the LV-PUR131( completed the same test in just 40 minutes, proving that there are other better alternatives. The one I would suggest is the Levoit Vital 200S, which is being sold for the same price as the LV-PUR131, yet it can clean the air A LOT faster as our air cleaning speed shows (the Vital 200S completed the test in just 18 minutes).

Noise levels, compared

Alongside purifying performance, it’s essential to gauge how loud this unit is when operating on its various fan speeds. 

When cycling between the three standard fan speeds, this unit runs between 52.2 – 65.6 dB, which is louder than most of the other air purifiers we have tested. However, when set to the Sleep setting, this comes down to a much more tolerable 27 dB. 

Check out our sound guide below to hear the LV-PUR131 for yourself. 

The cost to run a Levoit LV-PUR131: $108.58 per year

1. Electricity costs = $32.59 per year

Many of us are feeling the pinch as soaring energy prices affect the cost of living. So itโ€™s a good idea to figure out what youโ€™re likely to pay across the lifetime of your air purifier. 

We used the Department of Energyโ€™s appliance energy calculator to estimate how this unit might impact your electricity bill to save you the headache of doing the math. 

This unit uses 30.5 watts of power on its highest speed setting, which is pretty efficient. If we imagine you run the air purifier on this setting 24 hours a day, 365 days a year, the LV-PUR131 will set you back $32.59 a year. 

Bearing in mind as youโ€™re more likely to run the unit on its lowest speed for around 8 hours a day, it wonโ€™t cost much at all to operate this air purifier. 

2. Filter costs = $75.99 per year

Over time, as your HEPA and Activated Carbon filters work their magic, they will become clogged with pollutant particles and eventually lose efficiency. 

To keep your purifier performing at its peak, you must replace the filters, adding another additional cost to consider before you purchase.  

The LV-PUR131 has two filters that need replacement every 6 months (both the Activated Charcoal and the HEPA filter). They are both available in replacement packs for $45.99 but the 2-pack will set you back $75.99 per year.

However, several filters available from third-party manufacturers on Amazon are cheaper than the official Levoit filters (which are often out of stock across the U.S.)  These alternative filters come with great reviews from fellow users who claim there is no difference in performance when used.

LEVOIT LV-PUR131 Replacement Filter, Genuine Air Purifier Filter, High-Efficiency Activated Carbon for Removal of Odor, Smoke, Pollen, Allergens, LV-PUR131-RF, 1 Pack
isinlive LV-PUR131 Replacement Filters Compatible with Levoit LV-PUR131 & LV-PUR131S Air Purifier, LV-PUR131-RF
Technology
H13 HEPA and Activated Carbon Filter
2-Pack Replacement H13 HEPA and Activated Carbon Filter
More information
Price
$45.88
$28.49
LEVOIT LV-PUR131 Replacement Filter, Genuine Air Purifier Filter, High-Efficiency Activated Carbon for Removal of Odor, Smoke, Pollen, Allergens, LV-PUR131-RF, 1 Pack
Technology
H13 HEPA and Activated Carbon Filter
More information
Price
$45.88
isinlive LV-PUR131 Replacement Filters Compatible with Levoit LV-PUR131 & LV-PUR131S Air Purifier, LV-PUR131-RF
Technology
2-Pack Replacement H13 HEPA and Activated Carbon Filter
More information
Price
$28.49

Comparing the Levoit LV-PUR131 to the LV-PUR131S

Shortly after releasing the LV-PUR131, Levoit launched the LV-PUR131S to offer users a purifier with enhanced smart features. 

In addition to the Auto mode found on the original model, the S includes the option to connect your purifier to your phone or smart device such as Alexa. 

This enables the user to operate the purifier remotely using voice activation or at your fingertips through your phone. 

The app also allows you to remotely set timers and create schedules, providing updates on the current air quality in your space.

FeaturesLevoit LV-PUR131Levoit LV-PUR131S
Purifier technology:H13 HEPA and Activated Carbon FilterH13 HEPA and Activated Carbon Filter
Recommended room size:360 sq. ft. 360 sq. ft. 
Filter life:6 months6 months
Weight (in pounds / in kg):11.22 lbs / 5.1 kg11.22 lbs / 5.1 kg
Energy consumption:$66.26 per year$66.26 per year
Auto Modeโœ…โœ…
Smartphone FunctionalityโŒโœ…
User reviews
List Price$179.99$189.99

So, should you pay more for the S? 

In reality, these two units are identical. The only difference is that the S is compatible with Levoit’s smartphone app and can be connected to smart devices such as Alexa for voice control. 

At only $10.00 more, it seems reasonable to pay the extra if you feel these additional features will be of use. However, if you canโ€™t see yourself utilizing such features, then why not save yourself 10 bucks?


Bottom line: Is the LV-PUR131 worth it?

A good choice for those who want a Levoit unit with separate particle and carbon filters โ€” but look at newer models if you want better air cleaning performance.

Your particular use case will depend on your situation. The team at Levoit produced a unit with top performance at an affordable price compared to most other air purifiers on the market. 

That being said, the Levoit LV-PUR131 doesnโ€™t have the power to deal with serious air pollutants, such as those from traffic pollution or cigarette smoke. The reality is that there are many other devices that are currently available for cheaper prices that will do a much better job of cleaning the air.

Levoit LV PUR131 Hallway

If you like the rectangular look, I suggest you check out the Levoit Vital series instead. The Levoit Vital 200S performed much better than the LV-PUR131 in our tests (cleaning the air in our test room in just 18 minutes), and it costs roughly the same. Alternatively, you can save yourself $60 and go with the smaller Levoit Vital 100S, which still managed the clean the air in our small test room in 28 minutes โ€” that’s 32 minutes faster than the PUR131.

And if you’re not specifically looking for a Levoit unit, then you should definitely check out the Winix 5500-2, which can be found for $159.99 (around $30 less than the PUR131), has separate filters and was 40 minutes quicker at completing our air cleaning performance test.

The Levoit LV-PUR131 doesnโ€™t have the power to deal with serious air pollutants, such as those from traffic pollution or cigarette smoke. And the reality is that there are many other devices that are currently available for cheaper prices that will do a much better job at cleaning the air.


SOURCES

We used the Department of Energyโ€™s appliance energy calculator to calculate yearly costs associated with running the Levoit LV-PUR131 24 hours a day for 365 days. We ran this calculation utilizing the U.S. average utility rate of $0.12/kWh as of May 9th, 2023.

Medify MA-40 Review

DSC08168

The Medify MA-40 could be your new go-to unit for air quality control in rooms up to 840 sq. ft.

[verdict]

DSC08173 1

Specifications:

Air Purifier
Medify MA-40
CADR
380 Dust/380 Smoke/380 Pollen
Technology
H-13 True HEPA + Activated Carbon
Recommended Room Size
840 sq. ft
Weight
15 Ibs
More information
Price
$249.99
Air Purifier
Medify MA-40
CADR
380 Dust/380 Smoke/380 Pollen
Technology
H-13 True HEPA + Activated Carbon
Recommended Room Size
840 sq. ft
Weight
15 Ibs
More information
Price
$249.99

The Look 

The body sports a glossy premium-feeling finish, and it wonโ€™t look out of place in a modern apartment or house. 

On the front, you have the larger air outlet, and on the back, there is a large air inlet and a handle, which comes in handy when moving the unit around. It was super easy to install the composite 3-in-1 filter, and the back cover has magnets for easy locking. So far so convenient. 

The top is very handsome indeed, with classy minimal looking tempered glass and an easy-to-navigate display panel. 

DSC08175

The controls feature the latest capacitive touch technology, but if you donโ€™t know what that means donโ€™t worry, just press the power switch, timer, fan speed, and ionizer switches and youโ€™re good to go. Oh, and thereโ€™s a child lock too to stop the little ones meddling with the settings and giving the whole family a cold (the Medify MA-40 pumps out cool air, which is awesome in summer, but leave it on too long and youโ€™ll end up with a freezer for a living room).

There are 3 manual fan speeds settings and a sleep mode. Itโ€™s nice to see a filter replacement indicator on the top panel too, meaning you shouldnโ€™t forget to replace the filter when the time comes. 

All in all, itโ€™s a slick-looking unit with a solid feel. 

Filtration 

Now for the technical bits โ€” the filtration system on any air purifier is basically the single most important thing to look at if you want to know how well itโ€™s going to work. The Medify MA-40 comes with a pre-filter, an H13-grade True HEPA filter, and an activated carbon filter. 

DSC08163

Letโ€™s take a closer look at the numbers: the removal efficiency of this filter is 99.9% at 0.1microns (MPPS). That means it can capture tiny airborne pollutants such as fine dust, smoke particles, and microorganisms like bacteria, fungi, archaea, or protists. The first line of defense is a pre-filter net, which traps larger pollutants such as lint, pet dander, mold spores, and dust. It also stops the core HEPA filter from getting clogged up. 

DSC08164

Next, we have the pellet-based Activated carbon filter, which takes care of all your odor and gas filtration needs. The honeycomb-shaped filter is filled with activated carbon pellets, which adsorb odors and VOCs from the air including smoke, pet smells, and all those odors that come from cooking. 

This filter needs to be replaced every six months or after 3000 hours of usage. These are easy to come by online and do cost a little more than some smaller units. Medify does offer a service they call Filter Club. If you sign up, they will send replacement filters to your door every six months and you save 10% on the list price plus free shipping. This isnโ€™t only a money-saving tip but will make sure youโ€™re never left without a new filter.

Medify MA-40 Air Purifier with True HEPA H13 Filter | 1,793 ftยฒ Coverage in 1hr for Smoke, Wildfires, Odors, Pollen, Pets | Quiet 99.9% Removal to 0.1 Microns | White, 1-Pack
  • EXTENDED FILTER LIFE & COST-EFFICIENCY: Our long-lasting filters deliver up to 3,000 hours or 4-5 months of continuous, high-quality air purification. With fewer filter changes needed, enjoy cost savings and a healthier, cleaner home environment.
  • EFFORTLESS FILTER REPLACEMENT: Our user-friendly design ensures a hassle-free filter change. Keep every room in your home, school, or office filled with fresh, irritant-free air. Regularly updated filters effectively neutralize lingering odors.
  • SUPERIOR TRUE HEPA H14 FILTRATION: Our advanced HEPA H14 filters capture 99.99% of airborne particles as small as 0.1 microns. Breathe easier with effective removal of dust, pollen, allergens, smoke, and pet danderโ€”better than HEPA H11.
  • 3-STAGE PURIFICATION PROCESS: The MA-40 boasts a three-layer filtration systemโ€”pre-filter for large particles, HEPA H14 for microscopic contaminants, and activated carbon for odor elimination. Ideal for pet owners, allergy sufferers, and smokers.
  • EXTENDED FILTER LIFE & COST-EFFICIENCY: Our long-lasting filters deliver up to 3,000 hours or 4-5 months of continuous, high-quality air purification. With fewer filter changes needed, enjoy cost savings and a healthier, cleaner home environment.

The Medify MA-40 has an optional ionizer โ€” when itโ€™s turned on, it releases charged particles that attach to any dust floating in the air. Then the heavy particles fall to the ground, just like magic! Beware though, you shouldnโ€™t use this feature if someone has asthma or breathing difficulties at home.

Noise 

Aside from the filter, noise is probably the next most important thing to consider if youโ€™re in the market for an air purifier. Clean air is essential, but noise pollution is a thing too, especially in a small flat. 

The Medify MA-40โ€™s noise level is 46 decibels on the lowest fan speed and 66 decibels on the top fan speed. 70 decibels is the level of noise generated by a vacuum cleaner, so, this thing can seem pretty loud on its highest setting, but will only take around 30 minutes to completely clean the air then you can knock it down a speed or two. 

Cost of running

Another worry I had was with energy consumption. Clean, pollution-free air must come at a price, right?

Wrong. Running the Medify MA-40 eight hours a day can cost as little as $24 a year. This sets top models like the MA-40 apart from the cheaper units on the market.

Combine that with the initial cost of the unit and replacement filters and youโ€™ve got a great deal for clean, fresh air in your home keeping you and your family healthy and allergen-free.

What I love:

  •  Easy to navigate, responsive touch panel controls
  •  Replacement filters are easy to come by, especially with Filter Club
  •  Itโ€™s lightweight and super easy to move between rooms

What I donโ€™t like as much:

  • Its flat top does collect surface dust
  • I would prefer a longer power cable 
DSC08152

Bottom Line

When purchasing an air purifier, a little research is required. With so many on the market right now, itโ€™s paramount that you find one for your needs. 

I chose the Medify MA-40 because it fit the size of my apartment perfectly. I was concerned with both pollution and VOCs coming in from the busy traffic outside and with my open plan kitchen/living room, I didnโ€™t want to be smelling of my cooking whilst I chill on the sofa.

The filters in this unit promised to address these issues and they didnโ€™t fail to deliver. 

I can now cook the most fragrant of dishes without worry of stinking out the place and whilst I can still hear the hustle and bustle of the city streets, I no longer fear what it might be doing to my health.

To be honest, Iโ€™m sure how I ever lived without it.

Medify MA-40 Air Purifier with True HEPA H13 Filter | 1,793 ftยฒ Coverage in 1hr for Smoke, Wildfires, Odors, Pollen, Pets | Quiet 99.9% Removal to 0.1 Microns | White, 1-Pack
  • MAXIMUM COVERAGE: Cleans large spaces up to 1,793 sq ft in one hour, 896 sq ft in 30 minutes (CADR 406). Ideal for homes, apartments, bedrooms, living rooms, offices, schools, universities, classrooms, hospitals, restaurants, and other businesses.
  • HEPA H13 FILTRATION: Trusted to remove 99.9% of harmful particles including allergens, odors, VOCs, smoke, pollen, pet dander, dust, smog, contaminants, and more down to 0.1 microns in size. Captures finer particles than HEPA H11 (0.3 microns).
  • ULTRA QUIET: Choose from 3 fan speeds, with the lowest setting operating virtually silent. Runs at 110 Volts at a min noise level of 46dB and max of 66dB. For the most discreet operation, enable sleep mode to completely dim the unit's panel lights.
  • EASY TO USE FEATURES: Includes a sleek touch screen operation panel with 0-8 hour timer, fan speed, sleep mode, filter replacement indicator, and child lock, great for both kids and pets.
  • QUALITY TESTED & BACKED: CARB, ETL, and Energy Star certified. Backed by a USA registered Lifetime Warranty. The replacement filter (B07MTQFFNT) lasts 3,000 hours or about 6 months.

Levoit Core 300 review

Levoit Core 300 Kitchen Counter

The Vesync Corporation launched the Levoit brand in 2016. Since then, Levoit has become a game-changer in the air purifier market. The Core series presented consumers with affordable prices, innovation, and everyday needs in mind. In 2023, they launched the EverestAir, which quickly reached the top of plenty of our Best Guides due to its performance and surprising air cleaning speed.

Now, back to the Core 300. Released in 2019, it quickly became a popular option in the context of the COVID-19 pandemic. It reached the #1 position for Amazon sales in Air Purifiers that year. And even though eradicating viruses from our homes may not be the drive it was a couple of years ago, air pollution is still a rising concern for many of us.

Fast forward to 2025, the air purifying industry has evolved significantly. Many new brands and models have flooded the market, some delivering a high-performance and smart features combo (such as the Shark HP102), some even competing directly with the Core 300 and showing amazing results (hello Winix A230/A231), others turning out to be no more than a disappointing overpromise. Yet, the Levoit Core 300 remains a best-selling unit to this day. 

True, it has no smart features or auto mode, but this was the budget air purifier to beat for a long time. With improvements to other models in the core series I don’t think this is the case as the OG Core 300 uses more energy and has lower performance to the newer models.

The Core 300 is a great entry-level air purifier, and it has been solid and reliable to date, but unless you can get it for very cheap, the Core 300S is a better choice but if you can try to go for a larger model like the Core 400S or Vital 200S as you will get much higher performance at lower fan speeds for similar running costs.

We recently created a video review of the Levoit Core 300, so if you prefer to watch rather than read, be sure to check that out.

The lowdown on the Levoit Core 300

Danny Ashton HouseFresh
โ€œThe Core 300 set the bar for what a budget air purifier could do. Still one of the best value small air purifiers, but I recommend that most people pay a little extra and get a device like the Vital 200S that provides higher air cleaning performance, washable pre-filter, app support and auto mode.โ€
โ€” Danny Ashton, HouseFresh Founder & Senior Writer

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

So, letโ€™s get straight to it. These are, in a nutshell, the strengths and weaknesses we see on the Levoit Core 300 after putting it to the test:

What we really like

You get good CADR for under $100.
Replacement filters are very affordable.
Itโ€™s a small unit, easy to place in small rooms and to move around.
Uncomplicated to set up and navigate, it requires low maintenance.
Itโ€™s whisper-quiet in sleep mode.

What we think could be better

It doesnโ€™t feature onboard sensors, therefore no auto mode either. 
Itโ€™s not as energy-efficient as the Core 300S.
It would be nice to have a filter with more activated carbon.

For less than $100, the Core 300 has a solid CADR of 145 CFM. This has been the best price-to-CADR ratio in the market for years, although lately, new units like the Winix A230 or the TaoTronics TT-AP003 have surpassed the Core 300 CARD for less than $80.

HouseFresh rating:โ˜…โ˜…โ˜…โ˜…โ˜†
Time to clean our 728 cubic feet test room (with the device running at top speed):54 minutes
Air purifier technology:Pre-filter, non-HEPA grade particle filter and activated carbon pellets
Recommended room size (4.8 air changes per hour):219 sq. ft.
Clean air delivery rate (CADR):Dust: 134 CFM
Smoke: 126 CFM
Pollen: 154 CFM
Dimensions (in inches / in cm):8.7L x 8.7W x 14.2H inches (22L x 22W x 36H cm)
Weight (in pounds / in kg):7.48 lbs (3.39 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 38.9 dB
Speed 2: 45.7 dB
Speed 3: 50.2 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 0.1 watts
Speed 1: 19.7 watts
Speed 2: 24 watts
Speed 3: 35.5 watts
Estimated running costs (electricity consumption + OEM filter replacements):$109.14 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM): $0.63
Manufacturerโ€™s warranty:2 years
Country of manufacture:China

Compact, smooth and easy to use

The cylindrical body and rounded edges of the Core 300 allow for a small floor footprint and user-friendly controls. 

Levoit Core 300 Hallway

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

With a cleaning power suited for 200 sq. ft. spaces, such as average-sized bedrooms, home offices or small kitchens, it only makes sense that this unit is petite enough to fit cozily on desks, kitchen counters or night tables. It doesnโ€™t take up much space, so it can be placed near the source of pollutants without interrupting your activity or needing much setup rearrangement. Besides, weighing only 7.5 lbs, itโ€™s easy to move around.

The tubular design is the same as most of the Core series. With the 360ยบ air intake, all the way around the bottom of the unit, you get air flowing in from all sides and coming out clean at the top. Enhanced by the cylindrical shape, Levoitโ€™s Vortex Air technology produces a swirling airflow to maximize the air circulation on all fanspeeds.

Levoit Core 300 Kitchen Close Up

Among Levoitโ€™s wide range of air purifiers, the Core 300 stands as the middle-sized unit, equal in dimensions to the Core 300S and only slightly bigger than the 200S and the Mini โ€” both suited for smaller spaces. 

Levoit Air Purifiers Together

Itโ€™s also very similar in size to the Winix A230/A231, the new contender in town, with an almost identical floor footprint. The Core 300 is slightly taller and somewhat less organic than the conic Winix. On the other hand, itโ€™s entirely white, which I like because it blends easily into the room, allowing for a more unobtrusive presence. 

Levoit Core 300 VS Winix A231

The control panel is a strong point for Levoit. 

Itโ€™s a neat white-over-black touchscreen, very responsive yet not overly sensitive. The Core 300 doesnโ€™t have onboard sensors, so the controls could feel a tad basic, but theyโ€™re far from it. Itโ€™s one of the simplest, most straightforward units that doesnโ€™t lose perspective on what users need. 

Let me explain. On the Core 300 control panel, youโ€™ll see the wheel of self-explanatory icons: the on/off button, a fan button to navigate through three different fan speeds, a lock button that will come in handy for those placing the unit in kidsโ€™ rooms, a filter replacement light that will turn red when it needs replacement, a timer to set the unit to run for 2, 4, 6 or 8 hours, a sleep mode that lowers the fan to the minimum, and a lights-off button that will be a blessing for those who use this unit in the bedroom. 

Levoit Core 300 Controls Screen

With no smart features onboard, such as app support or auto mode, the Core 300 is not a unit for technophiles. Itโ€™s ideal for those seeking a simple air purifier with an uncomplicated setup and straightforward controls. 

It does come with a built-in memory, so if you unplug the unit to move it to another room, it will remember your last setting as soon as you plug it back in. This may seem trivial, but itโ€™s actually quite helpful, and many brands have been cutting down on costs to make more accessible yet powerful units; the memory is something weโ€™ve often seen removed. 

Plus, thereโ€™s no worrying about opaque data sharing consents, which is not just an issue with Vesyncโ€™s app. Most apps have never-ending privacy policies many of us never read and usually request access to our phone camera or location. However, weโ€™re often unaware of the many ways big companies use that information.

A comprehensive three-stage filtration system 

An ideal filter for everyday air pollutants.

Levoit Core 300S Filter

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

Since 2023, Levoit decided to remove all mentions of HEPA filters from the marketing materials for many of their air purifiers, including the Core series and the EverestAir. While other units, such as the Vital 100S and 200S, are advertised as featuring HEPA filters, we havenโ€™t seen any third-party testing yet. 

Despite this issue, which can no doubt create distrust in the brand and the filterโ€™s efficiency, at HouseFresh, we believe in hands-on testing. And our results show that the Core 300 filter performs really well. 

Iโ€™ll get to the cleaning efficiency in a bit, but for now, let me say the filter features all three stages that make a robust filtration system:

  1. A pre-filter for larger particles. Itโ€™s the outer nylon layer that traps hair, fibers, dust and lint. The pre-filter is not removable like in other Levoit units, but it can be vacuumed to extend the primary filterโ€™s life.
  2. A main filter. The dense fiber maze is designed to capture airborne fine particles such as pollen, dust, mold spores, dander and other microscopic pollutants or allergens.
  3. An activated carbon filter with granular activated carbon โ€”a nice detail compared to other impregnated fabric carbon filters. The charcoal traps VOCs and odors on its surface by adsorption (similar but not entirely the same as absorption), so the higher amount of carbon a filter has, the more gasses and odors it will be able to adsorb.
Tip

There are four genuine Levoit filters to choose from, the main difference being the amount of carbon. The Original filter contains between 40 and 50 grams, while the Pet Allergy, Toxin Absorber and Smoke Remover filters have 90 grams. These also come with Levoitโ€™s ARC Formula, which breaks down particles to make the activated carbon last longer.

But itโ€™s worth noting that this amount of charcoal won’t be enough if you have severe issues with toxic gasses or fumes.

Replacing the filter on the Core 300 is easy to do

The access to the filter compartment is at the bottom of the unit. The lid can be opened by twisting counterclockwise and closed clockwise. In three easy steps, the Core 300 will be ready to start cleaning the air again:

  1. Unscroll the bottom cover of the device.
  2. Remove the old (and dusty) filter; have a bag ready to dispose of it with minimal particles reentering your home.
  3. Place the new one in its place and then put the cap back on. 

Or else, see how easily it is done in this video:

Removing the filter from the unit is fairly easy, and it can be done in three simple steps:

Tip

All new air purifiers come with their filters packed in plastic wrapping. This is common practice in the industry to ensure filters are not already doing their work while inside the box. 

If this is your first air purifier, you may not know about the wrapping and plan to plug and run it right away. So hereโ€™s a friendly heads-up: remember to remove the filter’s wrapping before turning on your new Core 300.

 

The Core 300 cleared our test room in 54 minutes with an estimate PM1 CADR of 109 cfm

This is actually pretty good for a small-to-mid-ranged air purifier released in 2019 and selling for under $100 but is starting to show its age.

how we test
How we test air purifiers

Read our full testing methodology.

The Core 300 has a CADR (clean air delivery rate) of 140 CFM for smoke, 141 CFM for dust and 145 CFM for pollen, according to the Energy Star profile.

Energy Star Rating Levoit Core 300

While itโ€™s becoming common practice to have third-party testing โ€”and itโ€™s actually reassuring, especially after Levoitโ€™s HEPA / not HEPA filters issueโ€” we still carry out our own first-hand evaluation process.

We tested all the units in the same 728-cubic-foot office so we could evaluate each air purifierโ€™s cleaning performance and speed and compare results across all units. 

With the help of our PurpleAir sensors, we measured how long it took the Core 300 to remove all the PM1.0ug/m3, PM2.5ug/m3 and PM10.0 ug/m3 produced by incense smoke. 

The results speak for themselves:

According to our Purpleair Zen sensor it took 54 minutes to remove all particulate matter from our test room, the Core 300 is 38 minutes quicker than the much more expensive Dyson HP04 Pure Hot + Cool ($529.99) and you do get around 17% higher CADR with the pricier 300S 45 minutes to clean our test room of all PM1.

Air PurifierAir Cleaning Performance FULL POWER (in minutes w/ PA Zen)List Price
Levoit Core 3005499.99
Levoit Vital 100S40139.99
Winix A230/A2314099.99
Coway Airmega 10040129.99
Levoit Core 300S45149.99
Levoit Core 200S5689.99
PuroAir 24051199

Itโ€™s only fair to say that there are newer units for small or mid-sized rooms that can clean the air faster. While the Core 300 is cheap, usually less than $100, most consumers are better off with some of the newer models like the 300S and 200S for improved performance and access to features like auto-mode and onboard air quality sensors.

Noise levels test results

Whether you work from home or are shopping for an air purifier for your bedroom or study room, noise levels are essential data to consider. All air purifiers produce some noise; engineering hasnโ€™t evolved to create completely silent fans and motors. Weโ€™ll probably get there sooner or later, but for now, knowing beforehand how loud a unit can be will help avoid unpleasant surprises. 

Thatโ€™s why this is the final step of our testing process, we measure every unit’s decibel (dB) output at the lowest and highest fan speeds. 

It is worth clarifying that we do this in a home environment and not a lab, so our measurements might be louder than the manufacturer’s because our noise level meter will pick up the hum of a fridge or a boiler in the background. We do this because we want to test how noisy air purifiers will be when used in the average home, aggregated on top of common household noise levels.

The Core 300 noise levels fall below the average decibels, emitting 37.1 dB in its most silent mode (sleep mode) and topping at 50.2 dB. For reference, Levoit’s marketing materials state 24 dB at the Core 300 lowest fan speed and 50dB at its highest fan speed.

Fan speedHouseFresh noise level measurementsLevoit marketing materials
Speed 137.1 dBA24 dBA
Speed 2 40.5 dBA
Top Speed50.2 dBA50 dBA

This is how the noise levels emitted by the Core 300 compare to other units:

The Blueair 411+ tops the list as one of the quietest units weโ€™ve tested, thanks to Blueairโ€™s trademark HEPAsilent technology that combines mechanical (HEPA) filtration and ionization (electrically charging pollutants to make them weigh more and become easier to trap by the HEPA filter).

While the Core 300 is louder, its filtration system is purely mechanical, with zero chemical by-products entering your space. Itโ€™s barely noticeable in speed 1 (37.1B), and I got used to the noise level of speed one pretty quickly and forgot it was running. If you live in a location with very low background noise, it might be more noticeable.

Itโ€™s worth noting, though, that youโ€™ll probably be running a small unit like this at the second or highest fan speed to ensure it cleans the air in your space, even if itโ€™s a small room. 

Image 05 05 2025 at 12.54 scaled

At speed two, we ran another performance test and accounted for natural ventilation of our test room to calculate a Usable CADR where the sound levels are sub 45dBA at 3 feet away.

Air PurifierTime to clean room (sub 45dBA)Sound Levelspeed
Levoit Core 3007840.5SPEED 2
Levoit Vital 100S6042.6SPEED 2
Winix A230/A2318635.2SPEED 1
Coway Airmega 10013838.9SPEED 1
Levoit Core 300S6638.9SPEED 1
Levoit Core 200S6643.7SPEED 2
PuroAir 2408443.2SPEED 1

The Levoit Core 300 is now looking a little old compared to the newer, similar-priced models from Levoit, like the Core 200S and Vital 100S, which both have better performance at usable sound levels.

I do like that Levoit has managed to keep the highest sound level at 50.2dB level as above this level is when it can become a problem and irritate those around when in use.

But when it comes to sounds, words usually fall short. Thatโ€™s why we recorded this video, allowing you to hear the Core 300 at all its speeds. 

The cost to run a Levoit Core 300: $109.14 per year

Even if it’s not the most energy-efficient air purifier, its annual costs are considerably low โ€” a true reflection of the key selling point of the Core 300: a budget-friendly unit.

1. Electricity costs = $54.15 per year

energy test levoit core 300

Understanding the annual operating cost of an air purifier can be a deciding factor in narrowing down your preselection. We understand energy costs are not something to take lightly, especially when these are on the rise worldwide.

We tested the wattage energy usage for the Levoit Core 300 at all fan speeds and recorded the experiment so you can see the results for yourself:

Fan speedHouseFresh energy usage measurements
Standby0.1 watts
Speed 119.7 watts
Speed 224 watts
Speed 3 [Top speed]35.5 watts

Besides, ideally, an air purifier should run continuously to achieve true, clean air. That being said, the Levoit Core 300 pulls 35.5 watts at maximum power. In more understandable terms, that means $54.15 per year or $0.14 a day. Youโ€™ll unlikely run the unit at top fan speed 24/7, but itโ€™s good to know the priceiest it can get.

However, compared to other Levoit units, the Core 300 is not the most energy-efficient. With the Core 300S, the manufacturer managed to reduce energy consumption to only 22 watts, while the 400S pulls no more than 38 watts, both at their highest fan speed. While the initial price on these two units is higher, itโ€™s worth noting they are less power-hungry.

2. Filter costs = $54.99 per year

Levoit Core 300 Kitchen Counter

The second fixed cost to consider is the filters, which, in the case of the Core 300, are replaced every six to eight months, but we will use 6 months as this is a fairly small unit.

Regarding filters, Levoit realized that if they wanted to keep leading the budget air purifiers game, they needed to lower the costs. The first genuine replacement filters we got for the Core 300 cost $60; now, you can find the original filter for $29.99 per filter with deals on buying 2 at once that bring it to $54.99

Standard Filters
Pet Allergy
Toxin Absorber
Smoke
LEVOIT Genuine Core 300-P Replacement Filter, Core 300-RF Air Purifier Core300S Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon for Removal of Smoke, Odor, Allergens, Pollen,1 Pack
LEVOIT Core 300-P Replacement Filter Air Purifier Pet Allergy, Genuine Core300S-P Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-PA, Yellow, 1 Pack
LEVOIT Core 300-P Replacement Filter for Toxin Absorber, Genuine Core300S-P Air Purifier Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-TX, Green
LEVOIT Core 300-P Replacement Filter for Air Purifier Smoke Remover, Genuine Core300S-P Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-SR, 1 Pack, Blue
$29.98
$35.99
$35.99
$39.99
Standard Filters
LEVOIT Genuine Core 300-P Replacement Filter, Core 300-RF Air Purifier Core300S Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon for Removal of Smoke, Odor, Allergens, Pollen,1 Pack
$29.98
Pet Allergy
LEVOIT Core 300-P Replacement Filter Air Purifier Pet Allergy, Genuine Core300S-P Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-PA, Yellow, 1 Pack
$35.99
Toxin Absorber
LEVOIT Core 300-P Replacement Filter for Toxin Absorber, Genuine Core300S-P Air Purifier Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-TX, Green
$35.99
Smoke
LEVOIT Core 300-P Replacement Filter for Air Purifier Smoke Remover, Genuine Core300S-P Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-SR, 1 Pack, Blue
$39.99

We were also pleased to see that you can find two generic filters for just $29.99. Considering that the Levoit Core 300 does not have approved HEPA, I see no reason why you shouldn’t save money and go with generics as it brings the running costs down significantly.

These yearly running costs compare well with other small air purifiers:

ModelYearly Cost
Levoit Core 200S$82.46
Levoit Core 300$109.14
Winix A230$95.1
Okaysou AirMax 10L$166.13
Molekule Air Mini$244.10

We tested the Pureburg generic filters that were available for $24 for two filters in our test room and found they slowed air cleaning performance a little but did use pelleted activated carbon like the OEM filters.

The main differences between the Core 300 and the Core 300S

Although quite similar in appearance, the Core 300S has the upper hand in terms of smart features. 

In 2021, Levoit released the Core 300S, an improved and Smart version of the Core 300. On the outside, both units look exactly alike, and they even use the same filters. However, there are some differences worth considering.

1. Performance

If you’ve read my review up at this point, you will know that the Levoit Core 300 took 9 minutes longer to complete our air cleaning performance test, but I’ll say it again in case you just skipped to this section.

2. Auto mode

The Core 300S incorporates air quality sensors that enable the auto mode, a feature loved by many. 

The AirSightโ„ข Plus sensors monitor the air in the environment, scanning for particulate matter. When the auto mode is on, the unit will adjust the fan speed according to the pollutants in your space, ramping up when the air is worse and conserving energy when itโ€™s cleaner.  

The sensor also powers the real-time air quality readings in the control panel. Levoit integrated these smoothly without complicating the user-friendly display with an LED color-scaled wheel, which changes color depending on the air quality of the room. The 300S also uses a laser air quality sensor that is is more accurate than most other small air purifiers that either use gas sensors or cheaper infared sensors that are a little slower to detect and also require regulary cleaning every few months.

The air quality readings are also uploaded and synced with Levoitโ€™s VeSync app, which is the next item on this list.

2. Internet connectivity and app support

While the Core 300 doesn’t include smart features, the user-friendly and comprehensive Vesync app enhances the usability of the Core 300S.

Some useful functions include tracking your home air quality and filter lifespan from wherever you are, navigating through mode settings and fan speed and connecting the unit to Google Home, Alexa and Apple Home.

3. Energy costs

To me, this is one of the most significant strengths the Core 300S has when compared to the Core 300. The Levoit team managed a great efficiency improvement achieving a max draw of 21.8 watts at top speed for the Smart unit. It reduces the yearly cost of running the Core 300S to $33.25 โ€” a whole 40% vs the Core 300.

4. Initial price

Smart features and optimized energy costs do come at a cost. Thereโ€™s a $50 cost difference between the two models โ€”and so itโ€™s been since the launch of the Core 300S. This may be too pricey for some while, but for others, it will make perfect sense to pay the difference upfront.

Tip

Each unit has clear pros and cons. If you would like to probe deeper into these two units’ comparison, read on in our Levoit Core 300 VS Core 300S review.

Bottom line

Looking a little old compared to the latest and greatest from Levoit

There are many things to like about the Core 300; It was the first “small” air purifier with enough power to be useful. It’s now looking a little old compared to the newer models on the market.

Levoit Core 300 Room 5

๐Ÿ’กexclusive code for HouseFresh for 10% off a single purchase on Levoit.com: HOUSE10

The sleek control panel is straightforward and easy to navigate. Plus, maintenance is minimal, only requiring a filter replacement twice a year (although you can go the extra mile to keep the unit in top shape).  

Many years after its release, the Levoit Core 300 was still a great option. Still, as of 2025 I have to suggest you look at the newer models from Levoit and Winix that offer better performance for the money, including the Core 300S (its younger sibling), Core 200S and the Winix A230/Compact Zero.

If budget is not an issue, you might also want to consider upgrading to the Levoit Vital 200S or Core 400S; for less than $200, you will get a CADR of 245 CFM and a much higher amount of pelleted activated carbon. The 400S even comes with a laser air quality sensor.

SOURCES

We calculated yearly costs associated with running the Levoit Core 300 24 hours a day, 365 days per year utilizing the latest average energy prices as reported by the Bureau of Labor Statistics of $0.174/kWh as of May 2024.

Retailer Lowest Ever Highest Ever

The best air quality monitors you can buy in 2026

air quality monitors

While you can download apps to find out the quality of the air outside, these apps won’t complete the picture because the air quality indoors is different. In fact, according to the EPA, indoor pollution can be 2-5 times worse than outside.

Poor air quality can lead to dizziness, headaches and fatigue in the short term โ€” all of which can lead to respiratory diseases, cancer, and heart disease in the long term. That is why monitoring the air quality indoors matters.

Since 2020, I have tested over 100 air purifiers, and along the way, I have used nearly 20 air quality sensors as part of our air purifier testing process. In this article, I will share my findings and highlight the best air quality monitors on the market right now.

If you want to know the air quality in your area, many free apps can provide this data. For those in the U.S., the EPA has an app called AirNow, and even Google Maps now provides air quality data. For those outside the U.S., the IQAir AirVisual app is straightforward and, more importantly, free. 

These tools can help you get local information on air quality without spending money, which you can then use to mitigate the problem, such as investing in an air purifier. If you only have $150, you are better off investing the entire budget in a good performing (and affordable) air purifier instead of buying a cheap sensor and a cheap air purifier.

If you want to start monitoring the quality of your air indoors, then keep reading.

Staff picks: The air quality monitors we recommend

BEST PORTABLE MONITORBEST VALUE FOR MOST PEOPLEMOST ACCURATE MONITORBEST UNDER $30
Aranet4 HOMEQP Pro 2PurpleAir ZenTemptop S1
ARANET4 Close UpQP Pro 2 Close UpPurpleAir Zen Close Up
Measurements:CO2, temp, RH and pressureCO2, PM2.5, PM10, tVOC, temp, RH and soundPM1, PM2.5, PM10, tVOC, temp, RH and pressurePM2.5, temp and RH
Power source:2 AA batteries5V, USB-C5V, USB Micro5V, USB-C
Mounting type:Indoors table top or wall mountedIndoors table topOutdoors wall mounted and indoors table topIndoors table top
Sensor type:Nondispersive infrared sensor (NDIR sensor)Grandway P5500 optical particle counterPlantower PMS6003 optical particle counter + Bosch BME688 gas sensorGrandway 7500 optical particle counter
Dimensions:7.01 x 7.01 x 2.38 cm8.5 x 7.5 x 8.6 cm8.5 x 8.5 x 10 cm6.36 ร— 4.6 ร— 5.46 cm
List price$189Check Price$299.00Check Price

If you are short on time and can’t ready my full article, then you can watch my YouTube video below where I share some more info on the best air quality sensors we tested since 2020:

Since the start of the COVID-19 pandemic, there has been an increasing number of people who are interested in understanding the air quality in their home. The problem is that most of the cheap sensors you’ll find online are nothing more than random number machines.

Read on to learn more about the only air quality monitors we recommend here at HouseFresh.

1. Best portable monitor: Aranet4 HOME

A battery-powered CO2 monitor that you can bring with you wherever you go.

ARANET4 Close Up

While you might be tempted to go straight for a particle sensor, many people will find a CO2 sensor way more useful as a first step towards understanding indoor air quality. High levels of CO2 have been linked to poor decision-making, slower reaction times, and increased tiredness. Plus, a study from 2021 showed that the level of CO2 can reflect risks of COVID as it can be a proxy of how well ventilated a room is.

The Aranet4 HOME is small, portable CO2 monitor that you can bring with you wherever you go. I highly recommend this CO2 monitor for those who want a device that can quickly assess the need for better ventilation in a space.

What we really like

With lithium AA batteries, you can extend battery life to up to seven (7!) years.
Excellent e-ink display that makes it easy to see readings even under the sun.
Its NDIR sensor has a long lifespan and requires less recalibration than other types of CO2 sensors.
The buzzer emits a sound when the CO2 concentration reaches the red threshold (1400 ppm). 

What we think could be better

The battery cover slid off the device a few times when I had it inside my backpack.
It is an expensive monitor and won’t be affordable for many people.

I bought the Aranet4 HOME back in 2022, when it was selling for $250. However, you can now find it for around $170. This is still a significant investment but you will be buying an air quality monitor that can last up to four (4) years on one set of batteries thanks to its e-ink screen โ€” and battery life can be extended to up to seven (7!) years if you set it to record CO2 readings every 10 minutes.

โžœ Read our full review

Measurements:CO2, temperature, relative humidity and atmospheric pressure
Sensor type:Grandway P5500 optical particle counter (non-FEM)
CO2 concentration accuracy:ยฑ 30 ppm (+ 3% of reading)
Mounting type:Indoors table top or wall mounted (with this wall mount bracket)
Power source:Two AA alkaline batteries (included)
Dimensions (in inches / in cm):โ€Ž2.76 x 2.76 x 0.94 in (7.01 x 7.01 x 2.38 cm)
Weight (in pounds / in kg):0.23 lbs (104 g)
App connectivity:Yes
Manufacturerโ€™s warranty:1 year

Tip

The Aranet4 HOME uses a highly accurate NDIR (nondispersive infrared sensor) and this is a big reason why it has a high price tag. However, you can find cheaper (and smaller) CO2 sensors that use photo-acoustic sensors. These sensors have been shown to work well indoors but are not as useful outside, according to a study by AirGradient, but they can be found for less than $50.

I have also tested the Qingping CO2 Monitor from Smart Air that can be found for less than $70. It uses an NDIR sensor and is very accurate but it has a much shorter battery life compared to the Aranet4 (around 30 days).

While CO2 monitors are very useful for triggering important actions like improving ventilation, there will be times when you want to know exactly what particles are in your air and, for this, you will need a monitor with a particle sensor.

2. Best value for most people: Qingping Pro (Gen 2)

A good looking air quality monitor with a touch screen and a high quality optical particle counter that will set you back $149.99.

QP Pro 2 Close Up

PRICE on amazon

The QP Pro 2 is the second release of the Qingping Pro model. Similarly to the first generation, the QP Pro 2 not only measures CO2 levels but also PM2.5 and PM10 (particulate matter) levels. And, according to AQMD’s Air Quality Sensor Performance Evaluation Center, the Qingping series from Smart Air has been shown to perform as accurately as much higher-priced devices.

What we really like

You can replace the PM sensor when the time comes.
It has been made with high quality materials and the touchscreen displays the most important air quality data in an easy-to-digest way.
Set up takes only a few minutes, and the settings are straightforward and intuitive.
You can connect it to the Xiaomi Home app to build routines for your Xiaomi devices around air quality readings from the Qingping Pro.

What we think could be better

The Qingping+ app can be buggy โ€” especially after updates.
The Air Quality Index data is not measured locally, so it is only available for a set list of large U.S. cities but might not show any data depending on where you are based.

On top of CO2 and PM, the QP Pro 2 also measures temperature, relative humidity and noise levels. It also detects VOCs, which is rare as VOC sensors are expensive and are hardly ever included in budget air quality monitors. Plus, the QP Pro also functions as a clock (with alarms) and it displays the weather, air quality index and UV index in your area.

And the thing about the QP Pro is that it looks GREAT thanks to the combination of a high quality aluminium outer casing that houses a replaceable sensor and a 4-inch touchscreen display.

Measurements:CO2, PM2.5, PM10, tVOC, temperature, relative humidity and sound levels
Sensor type:Grandway P5500 optical particle counter (non-FEM)
CO2 concentration accuracy:ยฑ15%
PM2.5 concentration accuracy:ยฑ10%
Mounting type:Indoors table top
Power source:5V, USB-C
Dimensions (in inches / in cm):โ€Ž3.35 x 2.69 x 3.4 in (8.5 x 7.5 x 8.6 cm)
Weight (in pounds / in kg):0.23 lbs (104 g)
App connectivity:Yes
Manufacturerโ€™s warranty:1 year

Tip

The internal battery of the QingPing Pro Gen 2 will only last a few hours so be sure to keep the sensor plugged into a battery pack or the well with a USB-C cable if you are pulling regular readings.

3. The most accurate monitor: PurpleAir Zen

The PurpleAir Zen is the very sensor we use here at HouseFresh to test the particle removal speed of every air purifier we review.

PurpleAir Zen Close Up

I first heard about PurpleAir sensors from a report from the South Coast Air Quality Management District (AQMD), which tests air quality monitors and compares their performance against that of reference devices that cost upwards of $20K. Inside the Zen, you will get a replaceable dual laser particle counter and a gas sensor โ€” the most powerful combo of any of the sensors on my list.

It doesn’t come with a fancy screen but you do get an in-built color-coded LED ring that ranges from green (good) to purple (hazardous). allowing you to quickly see the overall quality of your air at a glance. This sensor can be used indoors (with the table top mount) and also outdoors (with the use of cable ties).

We use the PurpleAir Zen as our main sensor for our hands-on air purifier tests, as it allows us to track PM1, PM2.5, and PM10 every few seconds. What I love about the Zen (and one of the reasons why we use it for our testing) is that it allows you to export all your data, which is something you don’t get with many sensors.

What we really like

It has two Plantower PMS6003 laser particle counters and a Bosch BME688 gas sensor for improved accuracy.
For PM1.0 particles, its results are highly aligned with those from a reference sensor like the $25K GRIMM EDM 180, based on the field report from AQMD.
The particle sensors are user-replaceable, so if you have any issues, you can swap out the sensor rather than buy a new device. 
It has a color-coded LED light that shows the quality of your air and you can also view real-time data using the PurpleAir map.

What we think could be better

This device is a little ‘techy-er’ than others on this list, so if you don’t want to do any technical steps, this sensor might not be the best option.
You used to be able to download the data directly from the website but now you need to use their API. which will be trickier for non-technical people.
It doesnโ€™t have an app like you will find in other plug-and-play sensors that I look at later on.

If accuracy is your core concern, then the PurpleAir Zen sensor is the best you can get without investing tens of thousands of dollars in reference instruments like the GRIMM EDM 180 or the Teledyne API T640.

Measurements:PM1, PM2.5, PM10, tVOC, temperature, relative humidity and atmospheric pressure
Sensor type:Plantower PMS6003 optical particle counter (non-FEM) + Bosch BME688 gas sensor
PM2.5 concentration accuracy:ยฑ10% at 100 to 500ฮผg/mยณ
ยฑ10ฮผg/mยณ at 0 to 100ฮผg/mยณ
Mounting type:Indoors table top or wall mounted
Power source:5V USB Micro, 0.18A continuous, 600mA peak
Dimensions (in inches / in cm):3.5 x 3.5 x 4 in (8.5 x 8.5 x 10 cm)
Weight (in pounds / in kg):0.78 lb (357 g)
App connectivity:No
Manufacturerโ€™s warranty:1 year

Tip

If you like the sound of a PurpleAir sensor but you can’t justify the $200+ price tag of the Touch or the Zen sensors then check out the new PurpleAir PIXEL. It is small, portable and powered by USB. Plus, it also has an LED color coded light to show the quality of the air at a glance.

4. The best monitor under $100: Qingping Lite

Retailing at $76, the QP Lite is the most reliable air quality sensor you can buy for less than 100 bucks.

QP Lite Close Up

PRICE on amazon

The smaller sibling of the Qingping Pro, the QP Lite is a small cube with a big OLED screen that houses a Grandway 7500 optical particle counter (non-FEM) sensor that can measure CO2, PM2.5, PM10, relative humidity and temperature.

The QP Lite can detect CO2, PM2.5, PM10, relative humidity and temperature. You can rotate through each of the measurements by tapping or sliding the touch bar on the top of the device.

What we really like

Its simplicity! This device requires no lengthy setup or manual to be read: you can use it straight out of the box.
It shows the overall air quality in your home at a glance with a color-coded LED light that sits on top of the screen.
You can connect it to the Xiaomi Home or the Apple Home app to build routines for your existing air purifiers and dehumidifiers based on the air quality readings from the monitor.

What we think could be better

When in battery mode, the sensor switches off automatically after 30 minutes as the default.
Unlike what we see with the QP Pro Gen 2, you can’t replace the particle sensor in the QP Lite so when the lifespan of the sensor comes to an end, you’ll need to buy an entire new device.

If you don’t need to take this monitor with you, I recommend you plug it in USB power all the time as it will ensure you have constant air quality readings. That said, the QP Lite has a 2000mAh lithium battery built-in, so you will be able to use it unplugged for up to seven (7) hours.

Measurements:CO2, PM2.5, PM10, temperature and relative humidity.
Sensor type:Grandway 7500 optical particle counter (non-FEM)
CO2 concentration accuracy:ยฑ15%
PM2.5 concentration accuracy:ยฑ10%
Mounting type:Indoors table top
Power source:5V, USB-C
Dimensions (in inches / in cm):โ€Ž3.35 x 2.69 x 3.4 in (8.5 x 7.5 x 8.6 cm)
Weight (in pounds / in kg):0.31 lbs (143 g)
App connectivity:Yes
Manufacturerโ€™s warranty:1 year

5. The best formaldehyde sensor: Elitech Temtop LKC-1000S+

This is the only monitor on this list that can detect HCHO (formaldehyde) molecules.

Temtop LKC 1000S Close Up

PRICE on amazon

The Temtop LKC-1000S+ is a handheld air quality monitor that measures PM2.5, PM10, formaldehyde (HCHO), tVOC, temperature and relative humidity. It comes with a little stand at the back so you can place it on surfaces without the need to be holding it all the time.

Something I really like about this monitor is that it has a function that shows the changes of PM2.5 levels for the last 12 hours represented as a histogram chart, which makes it easy to digest the data as a bar chart compared to a simple line chart. However, I know this is a subjective thing because I am a sucker for data visualization ๐Ÿ™‚

What we really like

This is my second Temptop monitor and I really appreciate the flip-out stand at the back.
The color LCD screen shows the data across all metrics clearly, including the
It can store up to three (3) months of continuous data inside the device, and you can also export the data through a USB cable.

What we think could be better

The laser particle sensor has a lifetime up to 20,000 hours but you won’t be able to replace it once the lifetime comes to an end.
It doesn’t measure CO2 levels. If you like the Temptop design but need a CO2 monitor, I’d recommend the Temtop M2000 (Gen 2).

At the bottom of the screen, you get a color-coded air quality indicator light that ranges from green (good) to maroon (hazardous) so you can quickly see what the quality of your air is at a glance.

Measurements:PM2.5, PM10, HCHO (formaldehyde), tVOC, temperature and relative humidity
Sensor type:Dart electrochemical HCHO sensor + Temptop laser PM2.5 sensor + Sensirion temp & humidity sensor
PM2.5 concentration accuracy:ยฑ10ฮผg/m3 (0-100ฮผg/m3)
ยฑ10%(100-500ฮผg/m3)
Mounting type:Indoors handheld and table top
Power source:5V
Dimensions (in inches / in cm):6.9 x 2.6 x 1.2 in (17.7 x 6.5 x 3.2 cm)
Weight (in pounds / in kg):0.48 lbs (219 g)
App connectivity:No
Manufacturerโ€™s warranty:1 year

6. The best radon detector: Airthings View Plus

The only air quality sensor on our list capable of detecting radioactive gas.

Airthings View Plus 2960 Side

PRICE on amazon

The Airthings View Plus is not cheap at just under $300, but it can detect CO2, PM2.5, tVOCs, temperature, humidity, pressure AND radon. Similarly to the Aranet4 HOME, it comes with an eInk display that can be customized to show the air quality values you want to always have on show.

This monitor integrates with IFTTT, Alexa and Google Assistant, and it also connects to the Airthings app, where you can see historical data visualized in easy-to-digest charts. It runs with six AA batteries and you can also plug it in with a USB-C cable.

What we really like

If you wave in front of the monitor, the LED light on top of the screen activates to show the air quality in the room (green = good, yellow = fair, and red = poor).
The UX of the View Plus is super clean, compared to many of the sensors on this page.
You can can plug it with a USB cable, which also allows the View Plus to become a hub for other Airthings devices.
It works as table top and also has mounting brackets on the back to mount it on the wall.

What we think could be better

You cannot export your data. Data can only be accessed via the Airthings Wave app or the web dashboard.
The reading intervals are a lot more spaced out than other monitors on this list. The shortest interval is 2.5 minutes but this only works when the View Plus is plugged in.
It is an expensive sensor. If radon is not an issue, you’ll be able to get every other measurement for half the price with the QP Pro.

Measurements:Radon, CO2, PM2.5, tVOC, temperature, relative humidity and atmospheric pressure
Sensor type:Alpha-spectrometer for radon + NDIR sensor for CO2 + Laser scattering based optical particle counter
CO2 concentration accuracy:ยฑ50ppm ยฑ3% within 10โ€“35ยฐC (50-95ยฐF) and 0โ€“80% RH
PM2.5 concentration accuracy:0 ~100ฮผg/m3, ยฑ10ฮผg/m3,100 ~200 ฮผg/m3, ยฑ10%
Mounting type:Table top or wall mounted
Power source:6 AA batteries or USB-C
Dimensions (in inches / in cm):6.6 x 3.5 x 1.3 in (17 x 9 x 3.3 cm)
Weight (in pounds / in kg):0.79 lbs (360 g)
App connectivity:Yes
Manufacturerโ€™s warranty:5 years

7. The best open-source DIY sensors: AirGradient ONE & AirGradient Open Air

Two sensors with open-source hardware and firmware that you can assemble yourself with replaceable parts, or buy fully assembled.

AirGradient HouseFresh

AirGradient devices are the best alternative to PurpleAir monitors due to the use of high-end replaceable sensors from industry leaders like Plantower, Sensirion and SenseAir. And unlike PurpleAir, AirGradient follows an open-source model for the data whereas the terms and conditions from PurpleAir make it clear that they own all the data

Another unique aspect of these sensors from AirGradient is that both of them are available as build-it-yourself kits. If you go for the kit version, you will get everything you need to build the monitor at home, including detailed instructions that are clear and easy to follow. And if you have any problems, you can drop a question in the AirGradient Forum and someone from the community will get back to you with their advice.

What we really like

Both monitors use high-end replaceable particle sensors from Plantower (PMS5003), gas sensors from Sensirion and NDIR CO2 sensors from SenseAir.
AirGradient states that all data is yours. They developed a simple backend for accessing your data without setting up an API, which makes exporting data a lot easier than with PurpleAir sensors.
AirGradient sensors come with Home Assistant integration, which is not something I have seen with other sensors we have reviewed. The AirGradient community has also built extensions to existing data platforms like ESPHome, Prometheus, and openHAB.
Both sensors work as table top and can be mounted on walls or poles.

What we think could be better

The sensors have not yet been tested by AQMD, but AirGradient does extensive testing and their devices are used in several universities.
Similarly to what we see with PurpleAir, AirGradient sensors are more suited to tech-savvy people who will be able to get a lot more value than just air quality readings.

Indoor monitor: AirGradient ONE

The AirGradient ONE is an indoor air quality monitor that measures CO2, PM2.5, tVOC, NOX, temperature and humidity. It has a color-coded LED bar and small 1.3-inch OLED display at the front that show the current air quality in the room. Even though it’s an indoor sensor, it comes in a plastic, UV resistant and weather proof enclosure.

AirGradient One Close Up

PRICE FOR FULLY ASSEMBLED PRICE FOR DY KIT

Measurements:CO2, PM2.5, tVOC, NOX, temperature and relative humidity
Sensor type:SenseAir S8/S88 CO2 NDIR sensor + Plantower PMS5003 laser particle counter + Sensirion SGP41 TVOC/NOX sensor + Sensirion SHT3x/4x temperature & humidity sensors
CO2 concentration accuracy:ยฑ40 ppm ยฑ3% of reading at 5 to 30ยฐC, 0-85% RH (400 – 2000ppm range)
PM2.5 concentration accuracy:ยฑ10%@100-500ฮผg/mยณ, ยฑ10ฮผg/mยณ@0~100ฮผg/mยณ
tVOC/NOX concentration accuracy:tVOC <ยฑ15 @ 0 to 500 VOC Index
NOX <ยฑ50 @ 0 – 500 NOX Index
Mounting type:Table top (with clip-on stand) or wall mounted
Power source:2A 5V USB-C
Dimensions (in inches / in cm):5.1 x 5.1 x 1.3 in (13 x 13 x 3.5 cm)
Weight (in pounds / in kg):0.77 lbs (350 g)
App connectivity:Yes
Manufacturerโ€™s warranty:1 year

Outdoor monitor: AirGradient Open Air

The AirGradient Open Air is an outdoor air quality monitor. Similarly to the ONE, the Open Air monitor detects CO2, PM2.5, tVOC, NOX, temperature and relative humidity. At the back of the device, you get zip tie holders you can use for pole mounting and you also get screw holes for wall mounting. There is also a small hole at the back that you can use with a secure screw to prevent the monitor from being stolen.

AirGradient Open Air Close Up

PRICE FOR FULLY ASSEMBLED PRICE FOR DY KIT

Measurements:CO2, PM2.5, tVOC, NOX, temperature and relative humidity
Sensor type:SenseAir S8/S88 CO2 NDIR sensor + Plantower PMS5003T laser particle counter + Sensirion SGP41 TVOC/NOX sensor + ScioSense ENS210 temperature & humidity sensor
CO2 concentration accuracy:ยฑ40 ppm ยฑ3% of reading at 5 to 30ยฐC, 0-85% RH (400 – 2000ppm range)
PM2.5 concentration accuracy:ยฑ10%@100-500ฮผg/mยณ, ยฑ10ฮผg/mยณ@0~100ฮผg/mยณ
tVOC/NOX concentration accuracy:tVOC <ยฑ15 @ 0 to 500 VOC Index
NOX <ยฑ50 @ 0 – 500 NOX Index
Mounting type:Pole or wall mounted
Power source:2A 5V USB-C
Dimensions (in inches / in cm):3.60 x 3.41 x 3.34 in (9.1 x 8.6 x 8.5 cm)
Weight (in pounds / in kg):0.38 lbs (180 g)
App connectivity:Yes
Manufacturerโ€™s warranty:1 year

Common questions about air quality monitors

The air quality sensors available to consumers estimate particulate matter or gaseous pollution in the air, often based on a reading of a different but easier-to-measure substance related to the pollutant. For instance, a sensor may be designed to measure the amount of light that particulate matter scatters, which, more often than not, increases as the levels of pollution rise. These results are then interpreted by the device and shown on a scale of low to high, sometimes with associated colored bars or LEDs.

The most basic air quality monitor is one you probably already have in your homeโ€”a smoke detector, which uses a binary scale and signals whether smoke is present.

Air quality is measured by the EPA using the U.S. Air Quality Index (AQI), and it has six categories corresponding to different levels of health concerns. Each of the six categories has its own color to make it easier for the public to know if the air quality is approaching unhealthy levels. The colors and categories are:

  • Green โ€“ Good
  • Yellow โ€“ Moderate
  • Orange โ€“ Unhealthy for sensitive groups
  • Red โ€“ Unhealthy
  • Purple โ€“ Very unhealthy
  • Maroon โ€“ Hazardous

According to the CDC, โ€œThe EPA has identified six pollutants as โ€œcriteriaโ€ air pollutantsโ€. These six air pollutants are:

  1. Carbon Monoxide. Breathing in high levels of CO can cause confusion, unconsciousness, and death.
  2. Lead. Lead in the air may have an adverse effect on the nervous system, kidneys, immune system, and cardiovascular system.
  3. Nitrogen Oxides (NO2). Breathing air with high levels of NO2 can lead to respiratory problems such as asthma and can become severe.
  4. Ozone. Increased ozone levels can cause coughing, damage your airways, and make the lungs more vulnerable to infections.
  5. Particulate Matter. This pollutant contains solids or liquid droplets so small they can only be seen under a microscope and if inhaled, can cause serious health problems, getting into your lungs, and even into your bloodstream.
  6. Sulfur Dioxide (SO2). Exposure to SO2 can cause harm to your respiratory system and make it difficult to breathe. Asthmatics and young children are at particular risk.

Youโ€™ve probably heard that the air inside your home can contain up to five times more pollutants than the outside air. The only way to accurately monitor the air quality in your home is to invest in a suitable quality air quality monitoring device.

An indoor air quality monitor, by definition, does precisely what the name implies: it monitors the quality of the air inside your home, continuously or periodically, depending on the type of monitor.

If you are concerned about the air quality in your home, get a monitor that tests for nearly all the pollutants found indoors such as the QP Pro.

It all depends on the technology the sensors use, the type of sensor, and lastly, the incorporated display method. Many middle- to high-end air purifiers have at least one integrated sensor. The most commonly found sensor is a PM2.5 sensor, capable of detecting particle matter up to 2.5 micrometers. They are normally the cheapest to manufacture and provide only basic readings and results. PM2.5 sensors found in air purifiers mostly use infrared technology, and while they do what they are supposed to do, the measurements are not very accurate. On the other hand, laser beam technology gives more precise air quality readings.

The display method used by the air purifier to show the quality of the air is also an important factor in determining the accuracy of the sensors. Most of them use a color scale to show the quality of the airโ€”green for good, up to red for badโ€”which may look appealing, but it doesnโ€™t tell you much. A display that shows the air quality index as a number, or a series of numbers, is more accurate.

PM2.5 is the measurement given to fine particulate matter (PM) with a thickness of fewer than 2.5 micrometers. To put that number in perspective, a grain of sand has a diameter of 90 micrometers, and a human hair measures 50-70 micrometers.

A PM2.5 sensor works by counting these fine particles suspended in the air. As air is sucked into an air quality monitoring device, particles in the air stream pass through a laser beam, which causes the light to diffract. The diffracted light will land on the sensor, placed at a right angle to the laser beam. The changes in the light intensity that the sensor picks up mean that individual particles can be counted.

VOC is an acronym for Volatile Organic Compounds and is an extremely broad classification of carbon-based chemicals. Consumer-related devices with integrated VOC sensors have become more and more available in the past few years, but they are relatively low-cost sensors that can only give a general reading as to the total amount of VOCs in the air and cannot pinpoint with any accuracy exactly what VOC it is detecting. They cannot differentiate between VOCs that are harmful and those that are not. There are some sensors on the market specifically designed to detect particular VOCs. For example, you can get a sensor that will detect formaldehyde, one for Carbon Monoxide, another for Radon, and some high-end devices have multiple sensors built-in to cover all major VOC detections with some degree of accuracy. Still, they tend to be a bit pricey.

Depending on your smartphoneโ€™s operating system, two of the best air quality apps are:

  • For Android users, the IQAir AirVisual app gives you historical, real-time, and forecast air quality data for your area. It provides live information on the six โ€œcriteriaโ€ for air pollutants, with health recommendations.
  • For Apple users, then the Air Quality Reader is an excellent choice. With this app, you can switch between the air quality data from the EPA and the air quality index readings provided by PurpleAir on their website.

So… Is it worth getting an air quality monitor?

The short answer is ‘yes’.

Whether you are getting a single-pollutant monitor (such as carbon monoxide or radon) or a sensor that can detect multiple pollutants (like particle matter or tVOCs), getting a sense of the quality of the air in your home will help you take the right precautions when needed โ€” from simply opening a window to setting your air purifier to full speed.

If you have decided to buy your first air quality monitor, I recommend choosing a device that can detect several types of pollutants with an easy-to-understand display screen, such as the Qingping Pro or the Airthings View Plus.

Now, if you are a more technical person and/or care about getting the most accurate results possible, then you should look into the PurpleAir Zen sensor and the open-source AirGradient ONE sensor.

Tip

Once you have introduced an air quality monitor to your space, make sure to calibrate it regularly to get the most accurate results possible.

$27.99

Alen A350 review

AlenA350 2

The Alen A350 managed to clean our test room of 700ft in 35 minutes which is better than the recent Levoit Core 300, which is an air purifier that we recommend and which cleaned the same room in 49 minutes.

Performance:

The downside of the A350 is its power consumption at a whopping 86.7 watts, which is equal to $133.67 a year in California’s electricity costs. Compare that to the far more powerful Levoit Core 400S that has 24.5watts at full power which would only cost residents of California $37 for the year it’s hard to recommend buying an Alen A350 but if you got one still in operation you don’t mind the extra costs of energy to save more plastic being thrown away then you might be tempted to keep it running.

The Alen A350 was an air purifier that was first sold in 2010, if you already have one of these units then congrats on keeping your unit running for 10 years. You will also be happy to know that you can still buy filters for these units:

Alen Air Filter BF25A-Fresh + Carbon Replacement HEPA Filter for A375 & A350 Air Purifier -Captures Allergens, Dust, & Mold + Odors & Smoke (1 Filter)
  • Silver-Ion Technology protects the filter against growth of harmful bacteria and microbes
  • Creates an allergy and asthma friendly environment by removing dust, pet dander, mold spores and pollen from the air
  • Provides pure, breathable air by capturing VOCs (Volatile Organic Compounds) from cleaning products, personal care items and other household materials
  • Pre-Filter layer extends the life of the filter
  • Our standard medical-grade H13 True HEPA air filter offers outstanding protection by removing 99.9% of dust, allergens, and harmful fine pollutants as small as 0.1 microns. Every 30 minutes, our product can purify your home or office air depending on the model of Alen air purifier.

Sadly the Alen A350 is no longer for sale but there are several new Alen units that you might be in interested in that have a similar specifications:

1. Alen BreatheSmart 45i

Alen Air Purifier BreatheSmart 45i HEPA with Pure Filter for Large Rooms up to 1600 Sq. Ft. - Perfect for Bedrooms - Captures Allergens, Dust, & Mold
  • HEPA Pure Filter: Eliminates 99.9% of allergens and pollutants as small as 0.1 micron so you can breathe easy. Ideal for allergy, asthma, and virus concerns.
  • Proven by SleepScore Labs to enhance sleep according to a peer study. Its ultra-quiet operation emits pink noise, optimizing lower octave frequencies, and ensuring a restful night.
  • The BreatheSmart 45i quietly and efficiently circulates air up to 1600 sq. ft. every hour. Perfect for large bedrooms, living rooms, and dining rooms ensuring clean, fresh air throughout your space.
  • Alen air purifiers offer superior performance through the combination of a powerful fan, quiet motor, and advanced filtration. Medical-grade filters capture particles as small as 0.1 micron.
  • SmartSensor technology adjusts fan speed based on air quality, with color-coded feedback. Monitor air purity easily with this home essential.

With a CADR rating of 245, the Breathsmart 45i would be the A350 for the modern era. This unit comes with the same Alen lifetime guarantee so you can expect this air purifier to keep performing beyond 2030!

2. Alen BreatheSmart T500 

Alen T500 Air Purifier, Quiet Air Flow for Large Rooms, 500 SqFt, Portable Air Cleaner for Allergens, Dust, Mold, Pet Odors, Bacteria, In White
  • COMPACT AND MIGHTY: Experience powerful air purification with the Alen T500 Air Purifier, designed to clean 500 SqFt every 30 minutes. Its compact size makes it a perfect fit for small bedrooms, walk-in closets, dens, nurseries, home offices, and utility rooms. Breathe fresh air without compromising on space or performance.
  • FRESH HEPA Air Filter: Breathe cleaner air with the Alen Air Purifier's high-quality HEPA filter. This advanced filter captures allergens, dust, mold, and germs, plus carbon to absorb common household odors, ensuring a healthier and safer environment for you and your loved ones.
  • MEDICAL-GRADE H-13 TRUE HEPA FILTER: Discover the exceptional power of our medical-grade H-13 True HEPA filter within your home. Our filter has an impressive 99.9% elimination rate of airborne particles as small as 0.1 micron, this technology guarantees clean and fresh air throughout your space. Take control of your indoor air quality and create a safe haven for your family.
  • EXTENDED FILTER LIFE: Say goodbye to frequent filter replacements. The Alen Air Purifier offers the convenience of extended filter life, lasting between 6 to 12 months. Enjoy continuous and hassle-free air purification without the worry of constantly replacing filters. Experience the freedom of clean air, day in and day out.
  • IDEAL FOR GIFTING: Show your loved ones you care by gifting them the Alen T500 Air Purifier, a versatile and essential addition to any home. Perfect housewarming gift for a new home, this purifier effectively removes allergens and impurities from the air, promoting a clean and fresh living environment. Its sleek design adds elegance while improving indoor air quality, making it a valuable household essential.

This unit is a little cheaper but still has a CADR rating for dust of 159 so less powerful than the A350 but can often be found for less than $250 so it is significantly cheaper. This is a low-priced unit but still comes with the Alen lifetime guarantee. This unit comes with the H13 which are the same filters used for medical-grade air purifiers.

The following article is our original review of the Alen A350 Air Purifier from 2010:

AlenA350 1

PRICE = $399 (Amazon.com)

Before we start to dig deep into the pros and cons of this particular purifier. Itโ€™s worth having a look at what consumers at the major retailers think of this purifier. Most large internet retailers allow consumers the ability to provide a rating for their purchase. I use this rating as an initial way to quickly gauge the performance of an air purifier.

Review SiteRating
Amazon.com4 Stars (30 reviews)
Epinions.com5 Stars (8 reviews)
Wize.com4.5 Stars (77 reviews)
Shopping.com4.5 Stars (8 reviews)
Air Purifiers America4.5 out of 119 (10 user reviews)

The Alen a350 purifier has achieved favorable scores across a wide range of sites.

Note: Air Purifiers America has business connections to Alen so we need to take their scores less seriously than the other more independent retailers.

The video below will take you through a sample of Amazon.com reviews so you can get an idea of what people like/dislike about it:

The next step we take for this air purifier review is to dig a little deeper into what the experts are saying about this purifier:

1. Air Purifier Power โ€“ Written By Ed Sherbenou

AlenA350 5

Air-Purifier-Power Rating: 82, good

Benefits:

  • In recent assessments by air-purifiers-america.com this A-350 eliminated 98% of the contaminants in the device and 97% of the contaminants within the room.
  • The A 350 purifier is great at airborne dirt and dust and plant pollen elimination, yet is also competitively cost-effective costing under $300..
  • So the projected CADR (for basic comparability to mid priced store-bought models without having chemical substance blocking capability ) is 203.
  • The manufacturer guarantees 95% of purchases will be delivered within Twenty-four hours, and also features a straightforward return policy.

Problems:

  • Significant gas and smell elimination is really a necessity if health benefits can be envisioned: Models with actual carbon VOC ability position higher.
  • Alen A350 air purifier sound amounts will be over normal: 36 decibels(A)on low setting, 65 decibels(A)@214cfm on highest setting. 65 decibels(A) isn’t the loudest, but 214cfm is fairly weak for that amount of noise.
  • The organization doesn’t sell direct, yet drop ships air cleaners marketed by merchants.

2. ConsumerSearch.com

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Provides some reservations that the A350 should only be used in smaller rooms.

Benefits:

  • Highlights that this particular purifier can be mounted on the wall
  • States that the replacement filters  are relatively cheap
  • Mentions that the A350 comes with a Lifetime warranty

Problems:

  • Talks about how come, consumers, mention that the power supply causes a “humming” sound
  • Indicates that this air purifier should only be used in smaller rooms

CADR Results:

Sadly the A350 has not undergone a CADR test so we can not provide these results for this test. Thankfully Ed at air-purifier-power has worked out that this purifier has a similar ranking to a CADR ranking of 203.

The Alen A350, therefore, has an estimated score of: 203 CADR Ranking

Technology Used:

1.HEPA Filter

The Alen A350 uses one combined HEPA, carbon, and pre-filter in one unit. The only issue this raises is the price as the purifier requires this combined filter to be changed every six months. Currently, you can purchase the A350 filters on amazon.com for $49.99 which is not too bad but bear in mind that you will need to replace these twice each year โ€“ so itโ€™s $100 per year. If I compare this with other purifiers that use Lifetime HEPA such as the Honeywell 50250-N, the A350 is considerably more costly to run.

2. Ionizer Function

One of the nice benefits of the Alen A350 is that it comes packaged with an inbuilt non-ozone ionizer unit. Normally I would suggest that people steer clear of ionizer-only units but when combined with a strong HEPA filter it can help improve cleaning efficiency. The ionizer unit will charge the surrounding particles with a negative charge which means that these particles are heavier and thus picked up more easily by the HEPA filter. Negative ions have also been shown to imbue of sense of well-being but this still has not been confirmed by scientific studies. If you are not sure about the ionizer then you can easily disable the function using the on-off switch at the top of the unit.

Power Consumption

The A350 has an Energy Star Rating but compared to modern air purifiers it’s uses a lot of electricity with a maximum of 86.7 watts.

Addressing the Sound Problem

Some reviews have mentioned that the A350 has a whining sound when running. In tests, we came across no such noise and believe that this whining sound was down to broken air purifiers. On the highest setting, the A350 creates a noise level of 65 dB, which is relatively loud. In the video below I show the Alen a350 working at each different sound level so you can evaluate if itโ€™s too loud for your home. 

While the purifier is loud at the level 5 setting, it’s unlikely that you would need to leave it at this level for much time. I am quite happy with the sound output at the lowest level and so I would not find a problem sleeping with it running in my bedroom.

Performance Test

To test the A350’s performance, we set it up in our HouseFresh testing room.

We use this 705 cubic ft bedroom to test all our air purifiers to ensure it is done fairly, in the same conditions for a more accurate comparison.

To create pollution, we use incense sticks which contaminate the room with large amounts of pollutants. When the room is sufficiently polluted, we turned the Alen on at full fan power and left it to see how long it took to clear it of contaminants.

As with all our performance tests, we used the Purple Air Indoor sensor to track the number of small particles down to 1ug in the room, in real-time, allowing us to view the data on a graph.

Hereโ€™s what we found:

The highest point on the graph is where pollutants from the incense reach their maximum contamination.

As you can see from the sharp drop, the A350 goes straight to work on the larger particles in the room, while dealing with the smaller ones at a slightly slower pace.

The A350 cleared the room of contaminants in 35 minutes. Even though this unit is no longer sold, it holds its own against the newer, more modern units on the market.

Conclusion

This purifier provides a significant amount of cleaning for a small price of just under $400. It can be used in medium-sized rooms (400 square feet recommended) and can successfully remove all types of particles. My only issue with this purifier is the cost of replacement filters ($100 annually) and the lack of VOC capabilities.

When comparing with other purifiers, you should make sure that you take into account the $100 a year cost, as some Lifetime HEPA filters will work out far cheaper in the long run and may outweigh the initial extra cost.

The Alen A350 air purifier is currently the highest-rated purifier in my medium range ($200-$700), and I give it a 5-star rating.