Blast Air Purifier

(8 customer reviews)


In stock

The Blast FFU Air Purifier is a high-powered air purifier which cleans large spaces quickly. Its simple design has been aerodynamically tailored to be effective for large spaces like schools, hospitals and offices, cleaning spaces up to 130sqm.

Add a carbon filter to filter out dangerous chemicals including VOCs, formaldehyde and cigarette smells.

Reliable, Strong & Silent Clean Air

The Blast is a high-airflow air purifier that uses an aerodynamic design and industry standard HEPA filters to provide high airflow, with low noise. The Blast air purifier is suitable for cleaning and purifying large spaces from unwanted pollutants including PM2.5, viruses, mould, allergens and dust.

The Blast is designed to fit perfectly in hospitals, schools, restaurants and clinics, thanks to its quality finish and moveable design. Its super-quiet design, at just 48dB on high, makes it ideal for homes and living rooms too.

Blast HEPA filter Air Purifier comparison Blue air

Blast Air Purifier large cover area


Blast Air Purifier strong yet quiet
tests on Blast Air Purifier noise particle capture wind power

What’s in a Blast?

Blast Air Purifier components

Time to change the filter?

Blast Air Purifier filter change procedure


Your Purchase Includes  1x Blast (includes 1x Blast Air Purifier and 1 x HEPA Filter), 1x Wire cord, 1x Smart Air Handbook
Colour  White
CADR (m3/h) 507 – 680 – 890 (low – mid – high)
Noise Level <48dB
HEPA Lifespan 22 months (5280hrs, running 8hrs per day)
Power Consumption 88W (high)
Power Supply 220 – 240V/50-60Hz/ Plug type:
Safety Certifications Smart Air purifier CE safety certificate CE Certified (LVD/EMC/RoHS) | GB/T 4706.45-2008 Certified
Recommended Room Size Up to 130m2
Dimensions L x W x H (cm)  57.5 x 33 x 123
Product Manual Click to view the Smart Air Blast Manual


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8 reviews for Blast Air Purifier

  1. Brian Meyers (verified owner)

    Everything from the shipping packaging, design, quality of build is exceptional. Being unable to see a product in-person can be daunting. I cannot be more pleased with the Smart Air Blast.

    Brian, Chiang Mai, Thailand
    Chiang Mai air purifier

  2. send2willc (verified owner)

    Shipping was quick to my office in Xi’an. Arrived sooner than promised.

    I am very impressed with the construction — sheet steel is thick, finish is uniform, 3-speed fan is quiet — quiet enough for an office setting even at the highest fan speed.

    The Blast is so simple that it hardly needs any instructions. I had it unpacked and running in less time than it took me to configure the AirVisual Pro Air Pollution Monitor. I also got the monitor in order to know how bad things were in the office. When I unpacked the monitor, the air quality in my office was exactly the outdoor reading. What I like about the monitor is that it exports data, so I could see how the Blast was doing. It cleared the PM2.5 matter from a 3.5mx6mx2.8m office in less about an hour. I plotted readings. (yes, I am a data geek)

    Plot of first hour clearing PM2.5:

    R-code for plot:

    Clean healthy fun!

  3. Liz (verified owner)

    We love the Blast. Our particle counter reading is now 0 or 4! A wonderful peace of mind to finally have clean air in our home in China. It is indeed a big unit so finding the space was a little tricky and the fan blows a lot of cool air so we need to turn it around when sitting near it. Will be welcomed in summer! We are not bothered by the noise definitely quieter than Xiaomi and the Smart Air Cannon.

  4. Duncan

    These are awesome. We have one in our bedroom at full blast constantly and have never considered it loud at all. We watch films fine and don’t even notice it. And we sleep in perfectly clean air… seems like a pretty good deal to me! Thanks guys!

  5. marcel.morgan (verified owner)

    Great service, delivered promptly before expected. Seriously notice the difference when I plugged it in and it is only summer.
    I’m not sure what everyone is talking about, referring to noise etc. the unit is pretty damn quiet…
    thanks team, I will recommend your product to other ex-pats like myself. Cheers 👍

  6. Ak (verified owner)

    Awesome reply. My wife and I are so happy. We are tickled pink that we this unit will be truly silent! It is a sign of what I felt to be true about SmartAir. Mistakes happen so its the response that is the measure of character. A company that quickly takes responsibility for mistakes is rare and commendable. Regarding pricing: I appreciate the detailed response.

  7. Ak (verified owner)

    Strong but…LOUD.

    I wanted to love this unit but overall I am disappointed and give it 2 stars. The Blast cleans the air very well but it is not quiet. I have a small, 2 bedroom apartment in Dalian, China and bought the Blast specifically thinking I can run it on low (quiet) mode. But there is a big problem.

    The Blast produces an annoyingly loud, electrical buzzing sound. How loud? It is very audible at low speed. For me and my wife, the buzzing is too loud to run the Blast at the low speed (quietest) setting, which is why we bought the filter. It is a shame because the fan speed at low is quiet but the buzzing is intolerable. If you have the TV or music on all the time (meaning you sleep with one of them on) its probably ok but we like quiet so no go. At medium speed, the fan does a pretty good job of hiding the sound of the buzzing. I can tolerate it at medium but if you are sensitive to noise pollution it will probably bother you. The fan at medium is a bit loud. Depending on your acoustics and lifestyle (ie you like a quiet house, you have many hard surfaces) you may not like it. At high you can’t hear the buzzing but for our size apartment that is too loud. Moreover, we bought the Blast specifically for the low/quiet mode. In short, if you buy this and you don’t like a buzzing electrical sound (and have an otherwise quiet place – meaning you aren’t always watching TV or listening to music), plan to run it at medium or high. Another problem related to the noise: I can’t run this in a 14 sq meter room with the door closed because at medium it creates too much circulation and at low I hear the irritating, buzzing, electrical sound. For a single bedroom that is 15 sq meters this unit is too strong unless you can tolerate the low speed buzzing sound.

    Perhaps I have a defective unit. If not, I am unhappy with this unit and feel the claims of it being quiet are misleading. SmartAir does a great job of being transparent, which is a rare thing, but in terms of full disclosure on noise for this item they dropped the ball unless, of course, I have a defective unit and they can replace it (then I would be thrilled and give this 10 stars). If I knew this about the product, I would have kept looking or maybe bought the mini Blast. At the moment, I sort of feel cheated. I invite Smart Air to fix this problem and, in the meantime, inform customers about this issue.

    What about the air quality? On the upside, the filter a superb job of cleaning the air. I don’t have a particle counter but my lungs want to take a deep breath for the first time since I’ve been in China. Note: I don’t have the carbon filter because Dalian air is bad due to PM (not gases) and I don’t have new furniture/fixtures, etc so no off-gas.

    I find the unit costly at 1,980 yuan (~$310). It is the same as competition except for the Xiaomi, which I didn’t consider because it is too loud. But I wish SmartAir was pushing the envelope on price for all their units and not just the DIY option.

    It is bulky and heavy but comes with great wheels and it looks pretty nice. It also sports a quality electrical cable but I wish the cable was a couple feet longer.

    • Paddy Robertson

      Hi AK, Paddy here from the Smart Air office in Beijing! Thanks for writing the long review and giving us all this useful info. It sounds like your biggest concern with the Blast is with the noise levels. All air purifiers have motors in them, which are what typically give off the most noise. If a purifier seems to be totally silent (like some purifiers when in sleep mode) then it probably means it isn’t doing anything to clean your air. We tested the Blast in 2 different labs for noise, and the numbers above show it’s much quieter than other purifiers out there. Having said that, everybody has different perceptions of noise and some people are more sensitive, if the noise is really a problem then it might be hard finding something that will work right for you. We run 2 Blasts in the Smart Air office constantly, and it doesn’t affect our work. In fact we all like the ‘whooshing’ noise – it reminds us we’re breathing clean air!

      Whether or not the Blast pushes the envelope on pricing can be answered by looking at the cost per effectiveness of this purifier compared to other purifiers. The ‘bang for your buck’ of this machine is still much much higher than other similarly priced machines (we’ve worked hard to pack as big a HEPA as possible into the machine whilst still keeping the costs down). Similarly priced machines may only have a CADR in the range of 300-400cbm/hr, whereas the Blast has a CADR of 890cbm/hr. We also did make a conscious decision when designing the Blasts to go for a better finish and higher quality than previously (for example, coating the whole machine in white paint as opposed to leaving parts as ‘bare metal’, or sourcing a bigger/more effective HEPA filter and carbon material). These things have definitely brought the costs of the machine up, but we did work very hard to get the balance between cost and quality right for the Blasts.

  8. timothy.percevecz (verified owner)

    Love it!
    To say the least. As a new ex pat in China, buying an air purifier could have been a real headache, but Smart Air helped immensely. I did my research and it made sense to choose SmartAir. It arrived quickly as it had to be shipped. A couple of days after using it a friend with an egg that reads air quality stopped by and honestly, I was concerned. Even told my wife perhaps we are better off not knowing because if we don’t like the results, what could we do?
    That wasn’t a worry because the results were better than expected. Phew.
    I know quite a few people who have bough purifiers since they moved here and I am 100% confident I made the best decision to purchase from Smartair. Some who already bough a purifier are considering buying a SmartAir because their more expensive machines are not cleaning their air nearly as well.

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