The Sqair Air Purifier

5.00 out of 5
(18 customer reviews)
Up to 40m² (430 sqft)


Out of stock

The Sqair is the world’s most cost-effective air purifier. The Sqair packs a CADR of 315cbm/hr, all packed into a sleek, modern design. Never before has clean air looked so good. Need to filter odours or gases? Check out our Sqair Chemical Warfare pack.

Cleans 40 sqm in 25 minutes

The Sqair stands for performance and design, not for marketing hype and useless gimmicks. The Sqair is streamlined to do only one thing: cleaning air. And it does that one thing really well.

We’ve spent thousands of hours tweaking every part of the Sqairs design to make it a great air purifier. All for an affordable, cost-effective price.

By cutting out unnecessary add-ons, we’re able to give you more clean air, and less noise for a smaller price. See for yourself.

The Sqair at a glance


315 m³/hr

Room size

40 sqm

HEPA life-span

6-12 months


2 Years

Noise level

23-52 dB

Energy Consumption

6W – 38W

Dimensions LxWxH

33x33x37 cm


6 kg

The Sqair against COVID-19

A common concern is whether HEPA filters can filter viruses like the COVID-19 coronavirus. Science proves, air purifiers that contain HEPA filters or even lower grade filters can capture virtually all sizes of solid particles, including particles 0.06 to 0.14 microns in diameter – or the same size as the coronavirus.

Captures over 99.5% of PM2.5, virus & bacteria

Chosen among 10 different tested materials, The Sqair’s H12 HEPA filter effectively traps 99.5% of viruses, PM2.5, bacteria dust, pet fur, and mold, giving you clean air in your bedroom. Sleep soundly without worrying about fine dust, allergies or asthma.


Want to filter chemicals and odors as well?

Check our Sqair Chemical Warfare pack that comes with an additional carbon filter.

How long can I use the Sqair’s HEPA filter?

HEPA lifespans are tricky. Purifier companies like to give lifespan numbers without data-backed reasoning. Clearly, the HEPA filter will not last as long in Thailand air as compared to Swiss air.

We estimated the lifespan of the Sqair’s HEPA filter using two methods that you can check here. From the data we’ve collected, we recommend up to 1400 hours of usage. This equals up to 6 months if you run the Sqair 8 hours a day.


6 months

Why the Sqair is a great choice


On high, all air purifiers make noise. However, the Sqair is of the quietest on the market, in fact, 12 decibels quieter than the hugely popular Xiaomi 3H air purifier.

Eco-friendly packaging

We’re committed to reducing our impact on the environment, and one way we do this is by eradicating plastic from our packaging.

Minimalist design

The Sqair has a sleek, modern design, which fits perfectly in your bedroom, living room, or office. Never before has clean air looked so good.

Energy efficient

On the highest setting, the Sqair only consumes 38 Watt electricity. Depending on your usage (8 hours a day), The Sqair won’t cost you more than 5 – 35 Baht a month.

Real beech wood legs

The Sqair has real wood legs from sustainable forestry in Europe that provide a warm, homely feeling. Also they reduce noise and vibrations.

Easy filter replacement

Changing the filter is a child’s play. Just open up the Sqair, remove the old filter and insert a new one. It only takes 10 seconds.

Smart Air: better air purifiers for a lower price

The Sqair: The World's Most Cost-Effective Air Purifier

Smart Air Youtube

Most air purifier companies stuff their purifiers with unnecessary gimmicks to drive up prices. We at Smart Air, in contrast, are promoting the simple fact that air purifiers are just fans and filters. And by leaving pointless gizmos away, we’re able to provide you better air purifiers for a lower price.

These organizations below trust Smart Air and made a smart choice.

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Are Smart Air purifiers better than other air purifiers?

Our air purifiers work on the same principle as any other brand’s air purifiers. However, we’re the only air purifier company in the world that is transparent with its data and that doesn’t deny the fact that air purifiers consist of little more than fans and filters. We don’t make air purifiers overcomplicated and overprized by adding useless gimmicks to them. Our machines are honest, fully data-backed and streamlined to do one thing: cleaning air. And they do this one thing really well.

Why is Smart Air a Social Enterprise? And what is a B Corp?

In 2013, we set Smart Air up as a social enterprise. That means we’re not driven by greedy investors who are looking for huge profits, but by a mission to protect people from air pollution. Since 2018, we’ve been independently verified by B Lab for our social, environmental performance, transparency and accountability. B Corps are businesses that meet the highest social and environmental standards for people and the planet. See our impact score here.

Do Smart Air purifiers filter the coronavirus (Covid-19)?

HEPA filter air purifiers like Smart Air’s have been shown to filter out COVID-19 viruses, and lower transmission. See the data and learn how to protect yourself now.

What else do Smart Air purifiers filter?

Our HEPA filters capture all kinds of particles ranging from 0.005 μm (nanoparticles) to 30 μm (pollen). This includes virus, bacteria, PM2.5, PM10, pet allergens, dust, and mold.

Our Carbon filters absorb VOC’s (Volatile Organic Compounds) such as formaldehyde, paint thinners, petroleoum fuels, or dry cleaning agents. Carbon filters also remove odors.

Of note: Not everyone needs carbon filters that’s why all our air purifiers come without them by default. We want our users to decide by themselves if they want carbon or not.

Find in-depth explanations on both filter types here.

Do you have an office in Bangkok? And where can I see the products?

Yes, we do have an office in Bangkok. You’re very welcome to drop by to get to know us and our products. Please contact us for an appointment.

Line (@smartairth), via Email ([email protected]), call us: +66 80 626 6140
333/15 Soi Sukhumvit 55, Thonglor, Khlong Tan Nuea, Watthana, Bangkok 10110, Thailand

How long is the delivery?

Usually, we’ll deliver all orders within 24 to 48 hours (except Sunday) across Thailand. Longer delivery times are rare but may occur.

Can I get a tax invoice for my order?

Sure. Just leave us a note on the checkout page. Tax invoices will be sent separately via EMS.

How long is the warranty?

We provide 2 year warranty on all air purifiers for manufacturing defects. 1 year warranty applies to our air quality monitors.

What’s the lifespan of the Sqair HEPA filter?

Around 6 months. After going through the national standards test and our tests in our Beijing laboratory, the Sqair can be used for 6 months (or 1,400 hours) if it is on for 8 hours daily. The actual longevity will be according to how much time you use it daily, and the pollution situation in your area.

You can find an in-depth article about the filter life span here.

Additional information

Weight 6 kg
Dimensions 38.7 × 38.7 × 35 cm
Room Size

Up to 40m² (430 sqft)

Power (W)

6 – 18 – 38 (low – mid – high)

Noise Level (dB)

23 – 43 – 52 (low – mid – high)

Weight (kg)


Dimensions Box

38 × 38 × 33.5 (cm)

Dimensions Item

30 x 30 x 37 cm

CADR (m3/hr)

65 – 180 – 315 (low – mid – high)

HEPA Lifespan

1400 hours (6 months with 8 hours of daily use)

18 reviews for The Sqair Air Purifier

  1. 5 out of 5

    Nathan (verified owner)

    These guys have built a great product at an excellent price point. Clean air (measured with a PM2.5 Detector), quiet and designed well. Read the details on the website. The big name brands are severely overcharging. The tech involved in building a solid air purifier is not complex.

  2. 5 out of 5

    Thomas Stone (verified owner)

    Disgusting! That is what I think when I change the filter on my Sqairs. After 6 months running daily on the lowest setting, the filter turns black. All that grunge would be in my lungs without the Sqairs. I can’t see anything in the air, but all that gunk attests to the fact there there is, indeed, significant amounts of pollutants in the air in my house. Just because you can’t see it doesn’t mean that it is not there. I keep one running all night in the bedroom and that one gets just as black and grungy as the one in my office space. We now have a Blast Mini in our living room.

  3. 5 out of 5

    Thomas Stone (verified owner)

    I have always looked for products that do their primary function very well without a bunch of bells and whistles. The design of this air purifier is perfect in that regard. No fancy displays or features. It does one thing, it purifies the air via a simply, straightforward design. It is simply the best, most cost efficient air purifier on the market. If you don’t want to pay for a bunch of extra features that don’t clean the air then this is the air purifier for you.

    • Smart Air Thailand

      Hi Thomas,

      Thanks for your review! We’re glad you like it!

      Breathe safe!

  4. 5 out of 5

    Tyler Vanzo

    Wonderful design and effectiveness.

  5. 5 out of 5


    Bought one Sqair for our bedroom…..Ordered another one for the livingroom whilst getting more filters…Looks good and cleans the air, love it!

  6. 5 out of 5


    Overall it works very well. It looks good, is easy to assembly, easy to use (only 4 settings including “off”), and is easy to take apart. I usually run it on level 2/3 and it has replaced my noise machine in my room (which I had used when sleeping before getting the Sqair.

  7. 5 out of 5

    Prottay H.

    The Sqair works. One of the best investments I’ve made. Easily pays for itself many times over in terms of tangible benefit to my health and reduced sick days and medicine. Will get one for my office as well, probably.

  8. 5 out of 5


    I have been using The Sqair for a while now and I must say it does really work well. I love it! No more allergies for me. It is cost effective and has a very stylish design. This is probably the best air purifier. 👍

    • Rachel Chung

      Great to hear that Kayreene! Fellow air-breathers will be very glad to know that it helped with your allergies 🙂

  9. 5 out of 5

    Juliet Lim

    Love it! 😍 Using the sqair in my bedroom and planning to get the Blast Mini for my (double volume) living room. Air feels clean and the stuffiness in my nose and throat when I wake up is gone!

    • Smart Air Thailand

      So glad to hear you love it! 🙂 Breathe safe Juliet

  10. 5 out of 5


    Its amazing the amount of data these people have put out on their blogs and on their website. If you understand that an air purifier does not need to be complicated and is an extremely simple device, you will see no reason to spend any more money on any other brand. All Their data is verified by 3rd party labs btw, no joke. The other companies might be good also, but this is hands down the most bang for buck, Sexiest looking air purifier. Build quality is great for the money and this thing is built to last. I don’t want bells and whistles, fancy leds, just an air purifier that works.

  11. 5 out of 5

    Rachel Chung

    Have had The Sqair since it’s launch. It’s the best air purifier I have come across in the last 15 years (and I had them all!). Quiet, effective, and a great design. Well done!

  12. 5 out of 5


    I have Sqair since November, it has been a very pleasing experience. The USP of this product is its simplicity and efficiency. I recommend to everyone.

  13. 5 out of 5


    Buy this, breathe deep, and never look back. A no nonsense quality product that is super effective, quiet and stylish (because we do all actually need to show off to the neighbours). I’ve been buying from SmartAir since they launched. This is the best product to date and the affordability of the unit and new filters is unquestionably the best offer on the market.

  14. 5 out of 5


    Been using the Sqair for a couple of months now and I am extremely satisfied – it’s an excellent air purifier for smaller spaces (it works great in my bedroom!) and the price is lower than any other comparable product from bigger brands. Sleek, stylish and compact – so it goes well with your interior decor in any household.

  15. 5 out of 5


    I purchased this sqair to replace a large and loud xiaomi purifier in my bedroom. I’ve used it for over three months and still absolutely love it. I usually use it overnight at level 1, very quiet, but can still feel it is working. I haven’t replaced the filter yet but they seem to have a reasonable price, too. Overall, I’m happy with this product and would recommend to my friends.

  16. 5 out of 5

    Mathew John

    Have been using the sqair for the last week. its beautifully designed, works silently in the background even on the highest fan speed and brings down particulate counts in my bedroom very quickly.

  17. 5 out of 5


    Super happy with The Sqair! It’s an excellent air purifier and is very reasonably priced, unlike most other air purifiers that are either not up to the mark or are very heavily priced…

  18. 5 out of 5


    Super happy with The Sqair! It’s an excellent air purifier and is very reasonably priced, unlike most other air purifiers that are either not up to the mark or are very heavily priced.

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Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.

Certified B-Corp air purifier company