Levoit Core 600S review

The Levoit Core 600S is one of the fastest air purifiers we’ve tested that won’t break the bank.
Updated on June 3, 2024
Written by
Danny Ashton
Danny is the founder of HouseFresh and has been writing about air purifiers since 2010. He is our lead tester and reviewer, and is also the human in front of the camera in our YouTube channel.

Our verdict

Costing $299.99, the Core 600S provides incredible bang for its buck. Not only does it have a colossal CADR of 410 CFM, but it also completed our clean air speed test faster than any other unit in its price range. 


You’ll also find that the 600S comes with all the latest features to make cleaning your home’s air simple and efficient in the long run.

If you’ve been shopping around for a new air purifier, you will no doubt have come across the brand Levoit. 

Having emerged on the scene in 2017, they’ve become one of the most popular manufacturers on the market, with an array of air purifiers to suit different needs and budgets.

Levoit’s Core line has sold millions of units thanks to impressive performance and low prices. It all began with the immensely popular Core 300 model in 2019 and has since expanded to provide purifiers to different-sized spaces using Levoits signature technology such as VortexAir™, QuietKEAP™ and AIRSIGHT™.

The latest addition is the Core 600S, the largest and most powerful unit in the range. It is designed to clear all contaminants in spaces as large as 635 sq ft. This purifier has plenty of smart features to help clean the air while remaining a cost-effective option for consumers.  

Intro out of the way, let’s get on with this review, shall we?

The lowdown on the Levoit Core 600S

“A big device that is capable of keeping even the largest rooms clean. It won’t win any design awards but for those looking for a low-cost unit for a large space, the Core 600S has to be at the top of your list. Would love to see more carbon in future versions but for removing particles the Levoit Core 600S is a great device for the price.”
— Danny Ashton, HouseFresh Founder & Senior Writer

Looking for the highlights? Here are my key findings from reviewing the Levoit Core 600S. 

What we really like

With a CADR of 410, it provides powerful performance without a premium price tag
Despite its size, it remains lightweight and easy to move
Works well in large, open-plan rooms, delivering two air changes per hour in a 1588 sq. ft. space 
The VeSync app is easy to use and allows users to customize Auto performance, create schedules and view air quality readings
I like that the unit provides accurate PM2.5 readings as well as the color-coded rings

What we think could be better

Filters aren’t HEPA certified, which may deter some users
Some users may find the design a little bland or cheap
It would be great if you could remove the pre-filter for thorough cleaning

The Core 600S retails for $299.99, with its colossal CADR of 410 CFM, which equates to just 73 cents per CADR. In comparison, the Blueair Blue Pure 211+ is currently on sale for $211.49 with a CADR of 350 CFM, while the Smart Air Blast Mini costs $599.99, delivering 435 CFM. 

HouseFresh rating:★★★★★
Time to clean our 728 cubic feet test room (with the device running at top speed):15 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):584 sq. ft. 
Clean air delivery rate (CADR):Dust: 373 CFM
Smoke: 377 CFM
Pollen: 437 CFM
Dimensions (in inches / in cm):12.3 x 12.3 x 23.6 inches (31.3 x 31.3 x 60 cm)
Weight (in pounds / in kg):13.7 lbs (6.2 kg)
Filter life:6 months
Noise level in decibels (measured from 3 ft. away with a sound level meter):Speed 1: 40.9 dB
Speed 2: 45.9 dB
Speed 3: 61.4 dB
Electricity consumption in watts (recorded with an electricity usage monitor):Standby mode: 1.53 watts
Speed 1: 7.92 watts
Speed 2: 11.35 watts
Speed 3: 21.15 watts
Speed 4: 49.27 watts
Estimated running cost (electricity consumption + official filter replacement):$195.13 per year
Cost per CADR cfm (based on dust CFM as reported by AHAM):$0.80
Manufacturer’s warranty:2 years
Country of manufacture:China

Powerful performance doesn’t come in small packages

The 600S has impressive features and a design that blends easily into the home.

The 600S is exactly what you’d expect an air purifier to look like. It’s a simple white appliance with a tall, boxy design. 

Compared to other air purifiers, it may seem a little bland when placed next to the Blue Pure 211+ or Levoit’s more premium EverestAir.

But this paired back design is shared by its siblings in the Core range, which are hugely popular amongst millions of households, with many appreciating the neutral aesthetic.  

It’s worth noting that this is a large unit, but that is to be expected for such a powerful purifier. Despite its size, it remains relatively lightweight, so isn’t too tricky to move around the home.

A sleek-looking control panel makes the 600S easy to use, with intuitive capacitive icons to cycle through the settings. 

The icons include an on/off button, a filter replacement indicator, a fan to switch between the 3-speed settings and a padlock to lock the controls. 

Where things get interesting is in the 600S additional features. Here, you can set a timer between 1 and 24 hours, activate the ultra quiet and light-free sleep mode, or utilize the Auto function, which monitors your space’s air quality and adjusts the settings automatically.

This has proved to be very useful as it allows you to sit back and relax while the unit does all the heavy lifting. It works by using an AirSight sensor, which is impressively accurate and even relays real-time data back to you through the PM2.5 digital display and color-coded rings on the unit or directly to the VeSync app. 

Air Quality Indicator Chart
Indicator ColorAir QualityAuto Mode Fan SpeedPM2.5 Range
BlueVery GoodSleep Mode0-35 ug/m³
GreenGoodLow36-75 ug/m³
OrangeModerateMedium76-115 ug/m³
RedBadHigh>115 ug/m³

 I found the app easy to install on both Android and IOS devices and straightforward to use.

Once you’ve connected your device (requiring a wifi connection and close proximity), you can then program your purifier remotely. This allows you to adjust settings, set timers and schedules or just check in on the space’s air quality readings while you’re out and about. 

Through the app you can also input data on the room you’re using the purifier in. This allows for a tailor-made Auto setting that calculates the precise time to complete an air change in the space and can make your unit run much more efficiently. 

Big filters to capture the smallest particles

Levoit’s 3-in-1 filter effectively removes minuscule particulates and VOCs.

The Core 600S uses a 3-in-1 filter that combines a pre-filter (a), primary filter (b) and activated carbon filter (c) to combat the wide range of pollutants in the home.

The pre-filter captures large particles, such as hair or dust, which helps prolong the primary filter’s lifespan. Levoit recommends cleaning the pre-filter using a vacuum cleaner every 2-4 weeks. However, I found it slightly annoying to remove the particle build-up due to the cylindrical design which doesn’t detach from the main filter. 

The primary filter is the lynchpin of your air purifier. This removes the smallest PM1 particles, such as fine dust, smoke and allergens. 

When the Core 600S was first released, this primary filter was advertised as meeting the H13 HEPA standard. Following a complaint by Dyson, this terminology has since been removed, leaving question marks over the quality of the filter.

Although this is a fair concern for any consumer, when we tested the filter for ourselves, we found it quickly removed minuscule particles, which certainly put our minds at ease. 

We are also happy to confirm that its marketed CADR score matched up with the lab results from AHAM. You can see its full report on Energystar.gov, but it had the following CADR scores based on the AHAM/ANSI AC-1-2002 test procedure based on how fast the device removed pollen, dust and smoke:

Smoke CADR377 cfm
Dust CADR373 cfm
Pollen CADR437 cfm

Finally, the carbon filter is designed to remove odor and VOCs from your space. To do so, it needs lots of carbon substrate to lock in gaseous particles. The standard filter included with the 600S contains 160g of carbon, which isn’t a huge amount considering the size of the filter itself. 

You can upgrade this filter to the Pet, Toxin or Smoke option, each containing 360g of carbon that will be much more effective against household odors, but these quantities are still lower than what you’ll find on the 400S or EverestAir

The warning covers 900 toxins and carcinogens that, if exposed to, can result in adverse health effects. 

The 1986 act now covers any goods sold in California, which has enforced labels on everything from bread to bikinis and even Starbucks coffee

Regarding the 600S, and air purifiers in general, the warning usually relates to the electrical components inside, with solder known to contain chromium and circuit boards often found to contain lead. These are trace amounts and won’t pose any danger through normal use. 

The Core 600S is FCC-compliant and CARB-certified to ensure it meets the health and safety standards both Federally and in the State of California. 

Installing and replacing the filter on the Core 600S couldn’t be easier. Simply twist the body of the unit and slot in the filter with the tabs facing up. Check out our video below to see just how easy it is. 


Remember that all new filters come in a plastic wrapper. Be sure to remove this packaging before installing your new filter into the unit.

The Core 600S cleared our test room in 15 minutes

Rapid particulate removal makes the 600S one of the fastest air purifiers we’ve ever tested.

Every air purifier featured on HouseFresh undergoes the same clean air speed test. 

This is where we fill a 728 cubic foot space with incense smoke and time how long it takes for the unit to reduce levels of PM1.0ug/m3, PM2.5ug/m3 and PM10.0 ug/m3 to zero, measured using our PurpleAir air quality monitor. 

Air cleaning performance test results

The 600S got to work instantly and removed all PM1 particles in just 15 minutes. This time was so fast we had to repeat the test straight after to truly believe the results. 

To date, this time makes the Levoit Core 600S the third fastest air purifier we’ve ever tested, beaten only by the Smart Air Blast Mini ($599) Levoit EverestAir ($499.99) and AirDoctor 3000 ($629).

Looking at air purifiers in a similar price range, the 600S beat the Mila, Coway Ap-1512hh and the Bueair Blue Pure 211+, making it the standout option in its class. 

Noise levels test results

Sound can be a crucial factor in how often people use their purifiers, with loud and distracting units left to collect dust – and not in a good way. 

To help you understand how loud a purifier runs before you purchase, we record the decibels created at its lowest and highest fan speeds. 

The Core 600S creates 40.9 dB when at the lowest fan speed and peaks at 61.4 dB at top speed. To put this into perspective, these levels range from the sound of the hum of a refrigerator to an air conditioner. 

These sound levels are similar to other units in its price range, ranking marginally quieter than the Honeywell HPA 300 and Smart Air Blast Mini but not quite as low as the Alen BreatheSmart 75i or Coway Ap-1512hh.

Hearing really is believing when it comes to noise levels, so check out our sound guide below. 

The cost to run a Levoit Core 600S: $191.49 per year

Low long-term costs make the 600S a truly cheap investment. 

1. Electricity costs = $51.51 per year

Before purchasing a new electrical appliance, it’s always wise to consider how much energy it will use. 

After connecting the Core 600S to our energy use monitor, we recorded 49.27 watts when used at its highest speed setting. 

This is surprisingly efficient for a powerful unit that delivers a CADR of 410 CFM and 2 air changes per hour in a 1588 ft² space. Even if you used the purifier at top speed 24 hours a day, 365 days a year, it would cost you less than $6,25 a month. 

2. Filter costs = $139.98 per year

Another key cost to consider is filter replacements. All mechanical filters, like those used in the 600S, have a finite lifespan as they will eventually become saturated with particles and lose efficiency.  

Levoit states that their filter will last between 6-12 months if used around the clock. Replacement filters retail at $59.99, which is reasonable considering the level of protection they provide. 

Levoit Core 600S 3-in-1 Replacement Filter
  • 𝐏𝐑𝐎𝐓𝐄𝐂𝐓 𝐘𝐎𝐔𝐑 𝐈𝐍𝐕𝐄𝐒𝐓𝐌𝐄𝐍𝐓: It is highly recommended to use this officially designated replacement filterto keep your Core 600S-P/Core 600S air purifier at its best working efficiency and capacity, breathing fresher and cleaner air all the time
  • 𝐂𝐀𝐏𝐓𝐔𝐑𝐄 𝐋𝐀𝐑𝐆𝐄 𝐏𝐀𝐑𝐓𝐈𝐂𝐋𝐄: Ultra-fine Nylon Pre-Filter captures large particles such as dust, lint, fibers, hair, and pet fur, also helpful to maximize the filter’s life
  • 𝐔𝐏𝐆𝐑𝐀𝐃𝐄𝐃 𝟑-𝐈𝐍-𝟏 𝐅𝐈𝐋𝐓𝐑𝐀𝐓𝐈𝐎𝐍: Our Efficient Middle Filter is safer than medical surgical mask materials. It captures 99.97% of dust and allergens as small as 0.3 microns such as household dust, pet dander, mold spores and plant pollen

In my experience, Levoit’s primary filters meet the upper end of their estimated lifespan if used in the average home, which should cap replacement costs to just 60 bucks a year but we will use the 12 month estimate for calculation.  

As the 600S is such a popular model, there are plenty of non-branded filters to consider too. Opting for generic filters can save you even more money, with options available for as little as $31.50 per unit

Bottom line

Unrivalled speed and high-tech features make the Core 600S a steal. 

If you’re looking for an air purifier to work in a large room without a huge budget to spend, then the Core 600S is the best option for you. 

It delivers clean air quicker than any other unit in its price range and even beats the Alen BreatheSmart 75i and IQAir Healthpro Plus which cost more than double its price tag.

You’ll also find useful features like an Auto mode and app compatibility, while using the purifier incurs low costs, making this unit a great option long into the future.

While it may not be as stylish as the Blueair Blue Pure 211+ or come with a CADR score as high as the Smart Air Blast Mini, it’s hard to overlook the 600S’s value for money and adaptability to the modern home. 


We calculated yearly costs associated with running the Levoit Core 600S for 24 hours a day, 365 days per year utilizing the Energy Appliance Calculator from the U.S. Department of Energy as of June 2024.

Last update on 2024-07-13 / Affiliate links / Images from Amazon Product Advertising API

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About the author

Danny Ashton

Danny is the founder of HouseFresh and has been writing about air purifiers since 2010. He is our lead tester and reviewer, and is also the human in front of the camera in our YouTube channel.

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Your support makes it possible for us to keep doing what we do.
We are ad-free and buy all the devices we test with our own money. When you buy through links on our site, we may earn an affiliate commission, which we use to fund new product tests. Learn more