Sqair Air Purifier

4.68 out of 5
(19 customer reviews)


Offer No of items Discounted price
Bulk discount - 2 pack - 5% off 2 £125.40
Bulk discount - 3+ - 10% off 3 - 19 £118.80
Bulk discount - 20+ - 20% off 20 + £105.60

The Sqair is one of the most cost-effective air purifiers in its class. The regular Sqair HEPA E11 air purifier packs a CADR of 315m3/hr and comes with optional Carbon and/or HEPA H13 filters (see below for details). You are viewing the HEPA only version. For HEPA & Carbon filters, click here to view our Sqair Chemical Warfare pack ». We are open with our data and produce our technical specs on all speeds.


What makes the Sqair special?

As a B-corp social enterprise helping the world breathe clean air, we designed the Sqair because we were tired of the gimmicks and BS from current air purifier companies. The Sqair gives you far more clean air at a fraction of the cost of the purifiers from those “big guys”.

How did we do this? We cut out the fancy marketing gimmicks such as ionisers and photocatalytic filters that science shows can actually make your air worse. We designed the Sqair for performance, not marketing ploys. The Sqair is data-backed and is excellent at one thing: cleaning air. And it does that better than its competition.

One of the most POWERFUL purifiers in its class

Packing a powerful clean air delivery rate (CADR) of 315m³/hr, the Sqair generates more clean air than most of the competition. The Sqair is suitable for spaces up to 40 m² (430 sqft), the size of a one bedroom apartment

One of the QUIETEST purifiers in the market

On high, it sounds like soft rainfall. It is up to 12 decibels quieter than the hugely popular Dyson purifier, yet provides more clean air and costs less

Blows the competition out of the water on both price and effectiveness

The Sqair gives you the most clean air per pound than most of the purifiers in the UK

Like all HEPAs, captures virtually 100% of viruses, bacteria, PM2.5 and other dangerous pollutants

Watch the pollution collect in your filter (instead of your lungs) and enjoy the experience of breathing clean air
Carbon* (optional)



Paint odour







*The carbon filter is an optional add-on in our Chemical Warfare version. Not everyone needs carbon, so we let air-breathers choose whether they want carbon or not
Options for the Sqair
Sqair + HEPA E11*
Sqair + HEPA H13*
Chemical Warfare
Sqair + HEPA E11* + Carbon filters

PM2.5, dust, allergens, viruses

PM2.5, dust, allergens, viruses

PM2.5, dust, allergens, viruses

Chemicals, VOCs, odours, smoke

Chemicals, VOCs, odours, smoke

Chemicals, VOCs, odours, smoke

Why do we recommend a HEPA E11 grade filter for the Sqair?

We ran tests for different grades of HEPA filters when designing the Sqair, and we found that the HEPA E11 filter actually produced the best clean air result for the Sqair. If you'd really prefer a higher grade filter, we offer the Sqair with H13 HEPA but we highly recommend the Sqair with a HEPA E11 filter across its full use of applications

Want to filter smoke and odours too? Check out the Sqair Chemical Warfare pack »

* All Smart Air filters are certified to GB13554-2008 (now updated to GB13554-2020) & GBT6165-2008 standards. This is the Chinese equivalent of EN1822 / ISO29463 and is independently tested.

Three things you should know about the Sqair

Sqair Minimalist European design

Minimalist clean air

Simple 1 - 2 - 3 speed control for easy on-off

No hype, no

Clean air for an honest price. Crafted to increase effectiveness and lower cost

The Sqair gives no hype, no markup, just clean air
Sqair Simple Elegant design

Simple and elegant

It looks the part. Warm and cosy European beechwood legs

Sqair in numbers

Smart Air Sqair air purifier specifications

Technical Specifications

Your purchase includes 1 × Sqair air purifier (includes 1 × HEPA E11 filter), 1 × detachable cord, 1 × Smart Air handbook
Colour Matte White
Dimensions L × W × H (cm) 33 × 33 × 37
Weight (kg) 4.3
CADR (m3/h) 65 – 180 – 315 (low – mid – high) † 
Airflow (m3/h) 650 (on high) † 
HEPA lifespan 1400 hrs or 6 months (8hrs a day) Beijing Air
2550 hrs or 10 months (8hrs a day) UK Air*

Power consumption (w) 6 – 18 – 38 (low – mid – high)
Noise level (dB) 23 – 43 – 52 (low – mid – high)
Recommended room size 15 – 22 – 40m² (low – mid – high)
Power supply 220 – 240V/50-60Hz
Safety certifications Smart Air purifier CE safety certificateSmart Air purifier CQC safety certificateCE Certified (LVD/EMC/RoHS) | CQC | GB/T 18801-2015 Certified
Warranty 1 year

Click to view the Sqair manual

* The GBT 18801 standard recommends replacing HEPA filters after effectiveness drops to 50% of its initial value. Our lifespan tests were conducted in Beijing but the UK average lifespan is based W.H.O. air quality data. Our filter calculator gives you a rough guideline of lifespan based on how many hours a day you run your air purifier but note, the lifespan will vary depending on the pollution levels in your city and is based on running at top speed (it will last longer on lower speeds).

† The standard Sqair filter is a HEPA E11 (95%). We selected this grade HEPA as it outperformed the higher grades. We offer optional variations of HEPA H13 (99.97%) filter and/or carbon filter in our Chemical Warfare version but note the airflow and CADR will be different:

  • H13 filter: Top CADR 225m³/h, Airflow 520m³/h
  • Carbon filter: Top CADR 190m³/h, Airflow 480m³/h (note if you choose not to replace the carbon filter as you no longer have a need for it, the spec will be as shown in the main table for the HEPA version)

The Smart Air family

Air Purifier
SA600 air purifier by Smart Air

Blast Mini Mk II

Blast Mk II
Speed1 - 2 - 31 - 2 - 31 - 2 - 31 - 2 - 3
CADR (m³/h)65 – 180 – 315130 – 245 – 470340 – 450 – 740450 – 680 – 950
Noise (dBA)23 – 43 – 5223 - 39 - 5236 – 43 – 4929 – 37 – 43
Power (W)6 – 18 – 383 – 9 – 6049 - 82 - 12248 – 81–118
Coverage (m²)15 – 22 – 4016 – 29 – 5648 – 63 – 8574 – 99 – 130
HEPA lifespan (months)*6 (UK: 10)9 (UK: 20)13 (UK: 32)22 (UK: 42)
Dimensions L × W × H (cm)33 × 33 × 3735 × 23.2 × 5157.5 × 33 × 6357.5 × 33 × 123
Warranty (years)1122
Price£132 - £160£210£399 - £426£582 - £636
* The lifespan of a filter is based on pollution levels. We have created a filter replacement calculator to give you a rough idea of when you need to change your filter. It should be used as a guideline only. https://smartairfilters.com/en/when-change-hepa-filter/

Additional information

Weight 6 kg
Filter type:

HEPA E11 filter (Regular), HEPA & Carbon filters, HEPA H13 filter, HEPA H13 & Carbon filters

19 reviews for Sqair Air Purifier

  1. 5 out of 5

    Mari (verified owner)

    Absolutely brilliant!
    I have Long Covid, and any bug, not just Covid, can cause a relapse which can take months to get over, so these air purifiers are making a huge difference to my life
    I already have a portable air purifier from here which I use anytime there are other people visiting me or when I have an appointment to go to
    Finding out that the Sqair was affordable was fantastic! I got one just in time to take with me for a weekend away with family, and knowing that was on all the time made such a difference.

  2. 5 out of 5

    Sarah (verified owner)

    I bought two Sqairs primarily so that we can invite family into our home for the first time in 3 years when the weather makes outside visits a problem. They clean the air very efficiently - I can monitor the air quality with the QP Lite and have seen how effective they are. Very pleased with my purchase.

  3. 5 out of 5

    HW (verified owner)

    First unit arrived with a faulty switch, but return and replacement were quick and easy.
    Lovely design, seems very effective, and, whilst quite loud on maximum speed, is quieter than a big-brand unit we also have when on a comparable CADR setting.
    Very happy, thank you!

  4. 5 out of 5

    Lisa (verified owner)

    ❤️ my Sqair! Easy to assemble, looks good in a room (love those little legs!) and very quiet to run in the bedroom at night on the lowest setting. Have also used it when the plumber had to come to the house, along with having windows open. The different fan speeds are very useful.Looking forward to using it when family/friends come round, to keep us all a bit safer, in these uncertain times. After nearly three years, this will be a game changer for me.

  5. 5 out of 5

    Teena (verified owner)

    Very happy with the Sqair, delivery was quick and assembly was very straightforward. It looks good, runs quietly on the lowest setting, providing clean air and peace of mind.

  6. 2 out of 5

    Ina Dau

    Yes, it is a wonderful device, easy to use, straightforward settings, cleans the air, looks nice.
    Unfortunately it comes with only 1 year guarantee. After 18 months the switch on my device failed and the fan does not work at all. It seems impossible to just replace the fan and switch, so I am now left with a nice looking coffee table. 🙁
    It is a pity they have not built it in such a way that parts can be replaced.

  7. 5 out of 5

    Alissa (verified owner)

    Purchased this for my office and classroom to help keep me safe now that mask mandates have been dropped. It arrived quickly, was easy to put together, and is reasonably portable (I can carry it around to different rooms my building). It is quiet enough that it doesn't disrupt meetings.

  8. 5 out of 5

    Graham (verified owner)

    Nice design. We generally run it on "low" setting in our little sitting room, and it's almost silent. Great product!

  9. 5 out of 5


    Easy to assemble, stylish in room hepa filter with low noise, excellent device

  10. 5 out of 5

    Philip (verified owner)

    Excellent product at an affordable price. Just a little noisier than hoped but I'm happy if it cleans more air!
    Using it in my music teaching room (on 2nd speed) and will also use it for friends and family visits. Very portable too.

  11. 5 out of 5


    Fantastic product! I bought this because of covid and also because I suffer from hayfever, which has me coughing through the night when the pollen is very high. I’ve used it on the lowest setting whilst sleeping and managed to get a good night’s sleep. Worth the investment and will give me peace of mind when I have visitors, even with the windows open.

  12. 5 out of 5


    Had this unit for about 11 months now (pre-ordered it so was one of the first to get it in the UK) and frankly the filters are looking very black... so I guess its working. Nice looking unit, really does move the air and a PM2.5 sensor seems to suggest that it really is working. I run mine on a smart socket to have some automation and it works a charm. My only criticism is the footprint - it takes up a fair amount of space that a more vertical unit doesn't.

  13. 5 out of 5


    Delivery service excellent. Company helpful. Easy to assemble. Looks smart. I wanted three air cleaners for a room of my size with 10 people in it. I was lent another one. I monitored the air with a CO2 monitor. Cleaners on setting 2. Windows either end of the room open a little. Kept below 650. I opened the French doors at that point for a couple of minutes. Sent down to under 500 and stayed under 600 for the rest of the evening. (400-600 fresh air quality, under 800 very good). Happier having people around now!

  14. 5 out of 5


    Fantastic. The item is stunning in every way, beautiful to look at, beautiful to use, and most importantly delivers a lot of power for an amazing price. Klarna was a huge help in being able to own this.

  15. 5 out of 5


    Works like a dream. Not too loud, even at the highest setting, elegantly designed and beautiful to look at. I love it!

  16. 3 out of 5


    It was noisier than expected. An extra setting between 1 and 2 may help allow a better balance between noise and clean air delivery.

  17. 4 out of 5


    Very happy with this filter. It's simple and seems robust. Filter changes couldn't be easier. Has a good CADR for its cost. The noise produced in use on full power isn't too loud to hold a conversation over, and is quieter than many, though sufficiently loud that we often have it on a lower setting for a longer time. The lowest setting produces a pleasant hum, the middle setting produces a noticeable noise but quiet enough to blend into the background noise of family life.

  18. 5 out of 5


    Absolutely love the Squair. Never knew an air purifier could be so quiet, efficient and so cheap!

  19. 5 out of 5

    Verified Reviewer

    Great information and advice on the website. Quick delivery and it looks really nice too. Hoping it will help keep us safer.

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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