Sounds above 85 decibels are considered harmful to human hearing, so we should avoid prolonged exposure to them. This can become a problem when you consider that the fans inside air purifiers can get really freaking loud – especially if you have more than one device inside a room.
All this is to say that sound matters when it comes to air purifiers, and unfortunately, sound levels in product listings and marketing materials cannot be trusted.
In fact, if you click on a random air purifier on Amazon, you will likely see very low sound levels (around 20 dB) mentioned. But you should know that these incredibly low decibel figures are generally what you can expect when running the air purifier on sleep mode…
Sadly, it’s now common for air purifier manufacturers to only share the sound level at the lowest fan speed. The problem is that at this low fan speed, any small air purifier will not be able to provide multiple air changes per hour in even the smallest of rooms.
That is why we not only test the air cleaning performance of air purifiers at top speed but also at fan speeds below 45 dBA, which is the limit set by Clean Air Stars for noisy classrooms and offices.
My recommendations today are based on benchmark testing of over 130 different air purifiers running at fan speeds that generate less than 45 decibels of sound.
TL;DR: These are the best quiet air purifiers
If reading is not your thing, you can just watch the video version of this article.
I’ve also put together a table with information about each of the air purifiers I recommend for those looking for solid performance with quiet operation:
| BEST OVERALL | BUDGET | SMART | SMALL | LARGE | BUY-IT-FOR-LIFE | |
|---|---|---|---|---|---|---|
| CleanAirKits Luggable XL Ultra | AirFanta 3Pro | Blueair Blue Signature | CleanAirKits Triple Exhalaron | Coway Airmega ProX | Nukit Tempest Pro | |
 |  |  |  |  |  | |
| Top speed performance | 315 cfm @ 47.2 dB | 353 cfm @ 56.3 dB | 400 cfm @ 59.6 dB | 128 cfm @ 40.5 dB | 462 cfm @ 53.6 dB | 462 cfm @ 53.6 dB |
| Quiet speed performance | 284 cfm @ 44.1 dB | 213 cfm @ 43.3 dB | 229 cfm @ 40 dB | 128 cfm @ dB | 299 cfm @ 44.4 dB | 462 cfm @ 53.6 dB |
| Filter tech | MERV 13 | HEPA H11 + carbon | Particle + carbon + ionizer | HEPA H10 + carbon | True HEPA + carbon | MERV 13 |
| Max room size | 472.5 sq. ft. | 529 sq. ft. | 600 sq. ft. | 192 sq. ft. | 693 sq. ft. | 693 sq. ft. |
| Long-term running costs | $65.70 / year | $169.99 / year | $179.81 / year | $123.62 / year | $269.82 / year | $269.82 / year |
| List price | $310.00 | $164.99 | $449.00 | $359.00 | $999.00 | $999.00 |
Read on to learn more about my top picks for the best-performing quiet air purifiers you will find today. If none of them is right for you, scroll down to my list of excellent devices that nearly made the list or drop us a message on Reddit.
1. Best overall: CleanAirKits Luggable XL Ultra
It is honestly so quiet that the first week we had it, I found myself walking up to it now and again to check if it was running.
The Luggable XL Ultra cleaned our 728 cubic ft. test room of all PM1 pollutants in 19 minutes while generating only 47.2 dB of sound. Just to put this into perspective, that is around the same time it took the larger Winix 9800 and the Coway Airmega 350 — incredible air cleaning performance below 50dB!
It’s super quiet because it’s powered by seven Cooler Master Mobius 120 PC fans, which combined with two Filtrete MPR 1900 MERV 13 filters lead to excellent performance at whisper-quiet operation.
With the Luggable Ultra you’ll get 315 cfm under 50 dB, which will be powerful enough for five air changes in spaces of up to 472.5 sq. ft.
CONS
PROS
| Clean air delivery rate (CADR): | – Top speed PM1 CADR: 315 cfm – Sub-45 dBA PM1 CADR: 260 cfm – EnergyStar PM2.5: 402 cfm (dust) |
| Filter technology: | MERV 13 (20×25) |
| Recommended room size: | 390 sq. ft. (5 air changes per hour) |
| Dimensions: | 7D x 25W x 20H in (18D x 64W x 51 cm) |
| Weight: | 8 lbs (3.63 kg) |
| Noise level in decibels from 3 ft. away: | 47.2 dBA |
| Electricity consumption in watts: | 16.43 watts |
| Filter lifespan: | 6-12 months |
| Manufacturer’s warranty: | 1 year |
| Country of origin: | United States |
| Country of manufacture: | United States |
Northbox Systems is a Canadian manufacturer that produces PC fan-powered air purifier kits that use HVAC filters. We tested the 6XL and its air cleaning performance is outstanding.
2. Best budget option: AirFanta 3Pro
More than just quiet: this is the only air purifier with a CADR above 350 cfm that you can fit inside a carry-on bag.
Use the discount code HOUSEFRESH for 5% off when buying directly from AirFanta.
This is another PC fan-powered air purifier like the Luggable XL Ultra (above) but this one is much easier to build and cheaper to buy. Based on our tests, we estimate a CADR of 353 cfm (56.3 dB), which will provide five air changes per hour in rooms up to 529 sq. ft for just $164.99.
The 3Pro arrives in parts, so you’ll need to build it yourself but it’s super easy: you get plastic square-shaped base, four H11 HEPA filters (carbon is optional) and four PC fans on top.
It has a speed controller, so you can set it to 6.54V and it will offer 213 cfm while generating just 43.3 dB of noise – excellent quiet performance at an affordable price!
CONS
PROS
| Clean air delivery rate (CADR): | – Top speed PM1 CADR: 353 cfm – Sub-45 dBA PM1 CADR: 213 cfm |
| Filter technology: | True HEPA H11 and optional pelleted activated carbon |
| Recommended room size: | 529 sq. ft. (5 air changes per hour) |
| Dimensions: | 12.6D x 12.6W x 12.6H inches (32D x 32W X 32H cm) |
| Weight: | 7.7 lbs (3.49 kg) |
| Noise level in decibels from 3 ft. away: | 3.63 volts: 36.1 dB 4.19 volts: 36.9 dB 5.24 volts: 39.7 dB 6.54 volts: 43.3 dB 7.44 volts: 46.7 dB 8.56 volts: 49.1 dB 12.6 volts: 56.3 dB |
| Electricity consumption in watts : | 43.23 watts |
| Filter lifespan: | 6 – 12 months |
| Manufacturer’s warranty: | 1 year |
| Country of origin: | China |
| Country of manufacture: | China |
3. Best smart option: Blueair Blue Signature
A quiet option for those who want a more traditional air purifier with an onboard sensor, smart features and app connectivity.
The Blue Signature is a cylindrical air purifier that doubles as a table with powerful air cleaning performance, a laser PM2.5 sensor, smart modes and app connectivity. At top speed, it will give you 400 cfm while generating 59.6 dB of noise. This will be enough to clean the air five times per hour in spaces up to 600 sq. ft.
When set to speed 2, the Signature will reach 40 dB while still being able to provide a CADR of 229 cfm – pretty impressive quiet performance!
It comes with wraparound filter that combines particle filtration with a layer of pelleted activated carbon and Blueair’s HEPASilent ionizer technology.
CONS
PROS
| Clean air delivery rate (CADR): | – Top speed PM1 CADR: 400 cfm – Sub-45 dBA PM1 CADR: 229 cfm – AHAM PM2.5 CADR: 434 cfm (dust) |
| Filter technology: | HEPASilent particle filter with pelleted activated carbon and a removable pre-filter fabric. |
| Recommended room size: | 600 sq. ft. (5 air changes per hour) |
| Dimensions: | 17.3 x 15.7 x 15.7 in (44 x 40 x 40 cm) |
| Weight: | 13.2 lbs (5.98 kg) |
| Noise level in decibels from 3 ft. away: | Sleep mode: 34.8 dBA Speed 1: 35.3 dBA Speed 2: 40 dBA Speed 3: 51.9 dBA Speed 4: 59.6 dBA |
| Electricity consumption in watts: | Standby: 0.96 watts Sleep mode: 2.63 watts Speed 1: 2.95 watts Speed 2: 6.63 watts Speed 3: 19.08 watts Speed 4: 38.65 watts |
| Filter lifespan: | 9 months |
| Manufacturer’s warranty: | 1 year (3 years with product registration) |
| Country of origin: | Sweden |
| Country of manufacture: | China |
4. Best for small spaces: CleanAirKits Triple Exhalaron
An air purifier with a CADR of 120 cfm that has been designed to be used as a table centerpiece.
As much as I would like every person to buy the largest, most powerful air purifier they can live with, I know that not everyone has the space for a full-sized device. If this is you and you find yourself looking for a small and quiet air purifier with good air-cleaning performance, you should definitely consider the Triple Exhalaron from CleanAirKits.
At its highest fan speed, it hit 40.5 dB while having a CADR of 128 cfm so it can clean the air five times per hour in small areas no larger than 192 sq. ft.
In terms of design, the Exhalaron consists of three cylindrical filters covered by a washable pre-filter mesh with a wooden base and three CoolerMaster Mobius PC fans at the top.
CONS
PROS
| Clean air delivery rate (CADR): | – Top speed PM1 CADR: 128 cfm – Sub-45 dBA PM1 CADR: 128 cfm – Intertek PM2.5 CADR: 120 cfm |
| Filter technology: | HEPA H11 with a layer of carbon-impregnated fabric |
| Recommended room size: | 192 sq. ft. (5 air changes per hour) |
| Dimensions: | 22W x 7.25D x 8.5H in (56W x 14D x 22 cm) |
| Weight: | 6 lbs (2.72 kg) |
| Noise level in decibels from 3 ft. away: | Speed 1: 35.2 dBA Speed 2: 37.7 dBA Speed 3: 40.5 dBA |
| Electricity consumption in watts: | Standby: 0.1 watts Speed 1: 1.1 watts Speed 2: 2.8 watts Speed 3: 6 watts |
| Filter lifespan: | 6 months |
| Manufacturer’s warranty: | 1 year |
| Country of origin: | United States |
| Country of manufacture: | United States |
5. Best for large spaces: Coway Airmega ProX
The ProX offers an impressive CADR of 586 cfm (dust) for large rooms without generating excessive noise.
The ProX is the largest air purifier in the Coway Airmega line and can provide five air changes per hour in rooms of up to 693 sq. ft. (CADR of 462 cfm) when running at top speed (53.6 dB). It lacks app support but comes with an onboard air quality sensor that unlocks smart modes.
It’s the only traditional air purifier that comes close to the quiet performance of PC fan models like those from CleanAirKits, Nukit and AirFanta.
It uses two filters, each combining a Green HEPA filter with a pelleted carbon filter to help with both particles and VOCs.
CONS
PROS
| Clean air delivery rate (CADR): | – Top speed PM1 CADR: 462 cfm – Sub-45 dBA PM1 CADR: 299 cfm – AHAM PM2.5 CADR: 586 cfm (dust) |
| Filter technology: | Green True HEPA filter with pelleted activated carbon |
| Recommended room size: | 693 sq. ft. (5 air changes per hour) |
| Dimensions: | 18.9 x 36.6 x 24.3 in (48 x 93 x 62 cm) |
| Weight: | 51 lbs (23kg) |
| Noise level in decibels from 3 ft. away: | Speed 1: 37.4 dBA Speed 2: 44.4 dBA Speed 3: 53.6 dBA |
| Electricity consumption in watts: | Standby: 0 watts Speed 1: 11.76 watts Speed 2: 26.09 watts Speed 3: 58.88 watts |
| Filter lifespan: | 12 months |
| Manufacturer’s warranty: | 3 years |
| Country of origin: | South Korea |
| Country of manufacture: | South Korea |
6. Best buy-it-for-life: Nukit Tempest Pro
The Tempest Pro is the latest PC fan powered air purifier from Nukit and it’s entirely made out of metal.
The design of the Tempest Pro is similar to other Nukit models, with panels made out of black steel that will last a lifetime. But unlike the Euro and the original Tempest, the Pro uses six fans placed in two rows of three and 25×20 MERV 13 filters, so its body is larger — the same size as the Luggable XL Ultra from CleanAirKits.
With its OEM fans, it reached 38.1 dB at top speed with a CADR of 188 cfm – powerful enough for five air changes per hour in rooms up to 282 sq. ft.
it isn’t cheap but I honestly think it’s an investment for the long term, for those looking for an air purifier that will last a lifetime and are happy to pay extra for it.
CONS
PROS
| Clean air delivery rate (CADR): | – Top speed PM1 CADR: 188 cfm – Sub-45 dBA PM1 CADR: 188 cfm |
| Filter technology: | MERV 13 (20×25) |
| Recommended room size: | 282 sq. ft. (5 air changes per hour) |
| Dimensions: | 26.65 x 20.27 x 7.55 in (67.7 x 51.5 x 19.2 cm) |
| Weight: | 18.7 lbs (8.5 kg) |
| Noise level in decibels from 3 ft. away: | Top speed: 39.1 dBA |
| Electricity consumption in watts: | Standby: 0 watts Top speed: 16.44 watts |
| Filter lifespan: | 12 months |
| Manufacturer’s warranty: | 1 year |
| Country of origin: | China |
| Country of manufacture: | China |
Special mentions
These air purifiers also offer solid performance at quiet fan speeds, even though the didn’t make my final list. Perhaps one of them could be a better choice for you, depending on what you’re looking for:
Alen BreatheSmart 45i (36.2 – 51.1 dB)
A medium-sized air purifier with touchscreen controls, a H13 HEPA filter with pelleted activated carbon, and an ionizer function that you can turn on and off.
With a PM1 CADR of 198 cfm, it used to be my top recommendation but its 51 dB is too loud compared to what we see today from the new generation of PC fan-powered air purifiers.
Levoit Vital 200S (38.3 – 57.7 dB)
Considering it has smart functions, pelleted carbon and a PM1 CADR of 249 cfm, this was my top budget option thanks to its list price of $189.99.
It hits 41.9 dB at speed 2 with a PM1 CADR of 128 cfm but this result was blown out of the water by the highly affordable and quiet AirFanta 3Pro.
Smart Air Blast Mini (44.9 – 56.3 dB)
Unlike most air purifiers, the Blast Mini is made from metal instead of plastic, which makes it super durable. It’s large and powerful,, with a PM1 CADR of 400 cfm and 56.3 dB at top speed.
When running at its lowest speed, it hit 44.9 dB and 272 cfm. This is a great option for large spaces, but it didn’t make the cut because the ProX hit 299 cfm at 44.4 dB.
What to look for when buying a quiet air purifier
If you want to ensure the air in your home is clean, you should run your air purifier 24/7/365. That means that if your air purifier is noisy, it will affect the quality of life of those who live in your home… or even worse, you will likely turn it off sooner or later.
That is why you could say that the Holy Grail of air purifiers is a high CADR unit powered by a quiet fan, but these units are not easy to find, so I rounded up some tips to help you navigate the world of sound when looking for a quiet air purifier:
1. Don’t get duped by reported noise levels
Most air purifier guides on the Internet are nothing more than a repetition of manufacturers’ claims and data, and the thing with manufacturers is that it is in their interest to show you the best numbers, even if they had to jump through hoops to achieve them in a controlled test environment that won’t be reflective of day-to-day use.
That is why you will often see articles about quiet air purifiers quoting very low decibel figures, as manufacturers tend to promote noise levels of their units running at its lowest fan speeds.
When buying an air purifier for your home, be sure to check how much noise it produces at both low AND high fan speeds. Ideally, look for third-party data like the one we publish here at HouseFresh.
Check out this tool from Clean Air Stars, where you can enter the desired noise levels to find devices that will fit that criteria.
2. Pay attention to the CADR rating
By checking the air purifier’s clean air delivery rate (CADR) rating, you can determine how effectively the device filters pollutants within a given room size.
For example, a device with a 250 CADR rating for dust will be more effective than one with a 200 CADR rating for the same room size. The 250 rating means the air purifier can produce 250 cubic feet of fresh air per minute to remove dust from the room. Therefore, the higher the CADR rating, the faster the air purifier will clean a room’s air.
You can use our handy calculator to find out what CADR rating you should be looking for depending on the size of the room where you will be using the air purifier:
3. Check whether the air purifier has a Sleep Mode
If you are looking for an air purifier for your bedroom, don’t just focus on noise levels; choose one with a sleep mode option.
The sleep mode option not only sets the device to run at the lowest fan speed possible but also turns off the lights on the display, minimizing the chances of the air purifier disturbing the darkness of your room.
4. Beware of small air purifiers that promise whisper-quiet operation
Most lists you will find ranking on Google for “quiet air purifiers” will recommend tons of tiny air purifiers because they operate super quietly at low fan speeds. The problem is that these small devices won’t be able to clean enough air even when running at their top fan speeds (which are usually a lot noisier), so they will offer even worse performance at low fan speeds.
Take the popular Levoit Core Mini, for example. In our test, its top fan speed hit just 44.5 dB, which is below the 45 dB limit we set for this list of recommendations. The reason why this air purifier didn’t make the list is that when running at its highest speed, it took 1 hour and 53 minutes for the Core Mini to clean our fairly small test room of PM1 pollutants. Compare this to the 17 minutes it took the AirFanta 3Pro to complete the exact same test, and you’ll understand why I’m not recommending devices like the Levoit Core Mini.
If you choose the traditional air purifier route over PC fan-powered devices, the best option is to buy a big unit that is powerful enough to clean your air even when running at its lowest fan speeds.
Wrapping up
Our motto at HouseFresh is that our tests reveal what manufacturers won’t tell you. To fulfill that promise, we buy all our devices with our own money to avoid any bias and we spend months testing them thoroughly.
If you buy one of the air purifiers I recommended today by clicking the buttons throughout this page, you will be supporting our work so we can keep testing and reviewing air quality products. In simple terms, when you buy a device through our website, we will get a 3% commission on the sale at no extra cost to you.
These funds will help us continue testing and reviewing air purifiers, so we can identify more devices that offer exceptional air cleaning performance without generating too much noise.
As always, if you have any questions about any of the air purifiers I mentioned in this article, then let me know in the comments.
March 17th, 2026
- Replaced the CleanAirKits Luggable XL-7 with the CleanAirKits Luggable XL Ultra now that the XL-7 has been discontinued in the U.S.
- Replaced the Levoit EverestAir with the Blueair Blue Signature, which offers more powerful quiet performance.
- Added two new categories: best for large rooms and best buy-it-for-life.
- Trimmed the text in the Special Mentions section to make it easier to digest.
April 28th, 2025
- Updated the list of devices under ‘Special mentions’.
- Updated the buttons with new designs that include real-time pricing data.
December 12th, 2024
- Updated the entire article, from the intro to the conclusion.
- Replaced the Alen 45i as the best overall pick with the CleanAirKits Luggable XL-7.
- Replaced the Levoit Vital 200S as the best budget pick with the AirFanta 3Pro.
- Replaced the Levoit Core 300S as the best small for the CleanAirKits Triple Exhalaron.
- Added the Levoit EverestAir as the best smart option.
June 26th, 2024
- Updated the Okaysou section to update readers: the brand entered Chapter 4 bankruptcy procedures.
April 29th, 2024
- Updated my picks with embedded Flourish graphs showing test data.
February 18th, 2024
- Added a summary table at the top.
