Blast Air Purifier

5.00 out of 5
(6 customer reviews)


In stock

✳️ For US and Canada orders, visit our North America store here. The Blast FFU Air Purifier is a high-powered air purifier 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.





Clean Air

130m² (1400 sqft)

Coverage Area


Noise Level
  • Ideal for offices, hospitals, schools and large apartments
  • Cleans rooms up to 130m²/1400 sqft, or an average American household
  • 2 year warranty
  • Simple and Robust. Easy setup with proven, hassle-free design.
  • Helps with allergies, asthma and sinus problems.
  • Quiet and minimal design. Sounds like light rainfall
  • Easily movable with lock-tight wheel design
  • Incredible filter lifespan: replace your filter only once every 2 years
  • H13 HEPA (99.95% efficiency). Suitable for use in health facilities like hospitals and clinics
  • Optional carbon filter. Filters smoke, odours and chemicals.
  • , and certified

Powerful and efficient – your lungs will have a “Blast”!

The Blast is our simplest yet most powerful air purifier. It’s a powerful fan and huge HEPA filter  – all packed into one minimalist box.

We’ve spent thousands of hours tweaking every part of the Blast’s design to make it a powerful yet quiet purifier. All for an affordable, cost-effective price.

1800 m³/h Airflow 890 m³/h Clean Air (CADR)

Backed up by Open Data Tests

Alright, this photo is staged! But aeronautical engineer Paddy really did run over 200 tests on noise, particle capture, wind speed, and power usage. Because of this, the Blast can be a powerful yet quiet air purifier. And you don’t have to believe us. All this is backed up by thousands of hours of open data in our Clean Air Blog.

The Blast gives out as much clean air as 1.54 Coway AirMega 400S in an hour.

That’s a whole load of clean air!

Don’t break the bank

Our purifiers (and filters!) are the most cost-effective in the world. Save $75 on your clean air annually, when compared to Coway AirMega 400S’ filters. At Smart Air, we firmly believe that clean air shouldn’t be a luxury. Many purifier companies stuff their purifiers with unnecessary gimmicks to drive up the prices. We too were subject to the exorbitant prices of clean air.
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That’s why we simplify our purifiers to the bare essentials – a fan and a filter. Clean air at the simple turn of a dial.

Silent as a Sea Breeze

The Blast’s powerful fan and refined engineering gives you extra-quiet clean air that sounds like a gentle sea breeze.
A huge fan and an oversized HEPA means that the Blast can pump out more clean air at lower noise levels. With its quiet design, the Blast is ideal for those sensitive to noise, or those just wanting a good night’s sleep. Think of it as the strong, silent type.

Use it anywhere

The Blast covers up to 130m², or 1400 sqft. With that type of muscle, the Blast can cover big apartments, offices, or gyms.

(Or run it on low in a normal apartment, and you’ll have the quietest clean air on the block.)

Use the Blast in your:

The Blast’s whisper-quiet operation lets you enjoy clean air and a peaceful sleep.
Living room
The Blast’s powerful filter can purify large apartments of allergens and viruses.
Clean air while you work. Don’t let your homes be the only spaces with clean air.
The Blast’s H13 HEPA filter makes it suitable for health facilities, like hospital rooms or clinics.

Choose your filter

The Blast air purifier offers 3 levels of protection to filter out a range of particles and allergens. Its H13 HEPA filter is ideal for capturing allergens and viruses, making it the perfect purifier for those with allergies and sinus problems.

1. Pre-Filter
  • Removes dust, lint, pet fur and human hair
  • Captures larger particles so your HEPA filter lasts longer
2. Carbon Filter
  • Add a carbon filter to your Blast if you need to remove odours
  • Absorbs formaldehyde, volatile organic compounds (VOCs) and other harmful gases
3. H13 HEPA Filter
  • Effectively filters 99.95% of PM2.5, dust, allergens and viruses
  • Tested to be effective for 5280 hours, just shy of 2 years if used 8 hours daily

Why Hospitals love the Blast

Clean air is especially important to crowded hospitals and medical facilities. The Blast’s H13 grade HEPA filter traps 99.95% of viruses and bacteria, making it extremely effective for use in health facilities. Hospitals around the world are using Smart Air’s powerful purifiers to help filter out the virus in their facilities, and the Blast has been especially popular in many major hospitals Manila, Philippines for coronavirus protection.

The Blast against COVID-19

A common concern is whether HEPA filters can filter viruses like the COVID-19 coronavirus. HEPA filters removes particles greater than or equal to 0.3 microns, but virus particles are smaller. The coronavirus measures 0.06 to 0.14 microns in diameter. Are air purifiers then powerless against viruses? Actually, HEPA filters actually work great at capturing viruses. This is because a HEPA filter works not like a net, but through a process called diffusion. Learn more about how this works here.

Hear it from others!

Manila Doctors Hospital has been using Smart Air purifiers in the Emergency Room, which has really helped decrease the infection rate among us healthcare workers. That’s why I am confident Smart Air purifiers really work!


We’re Featured!

What’s inside a Blast

Purifier companies can make obscene profits when most people don’t understand how purifiers work. Here’s the honest truth: a purifier is a fan + a filter. In this case, that fan and filter are just really big.

Technical Specifications

Your Purchase Includes 1 × Blast (includes 1 × Blast Air Purifier and 1 × HEPA Filter), 1 × Wire cord, 1 × Smart Air Handbook
Colour Matte White
Dimensions L × W × H (cm) 57.5 × 33 × 123
CADR (m3/h) 507 – 680 – 890 (low – mid – high)
Noise Level (dB) 38 – 43 – 48 (low – mid – high)
HEPA Lifespan (W) 22 months (5280hrs, running 8hrs per day)
Power Consumption (W) 64 – 88 (low – high)
Power Supply 220 – 240V/50-60Hz/ Plug type: (Type I)
Safety Certifications Smart Air purifier CE safety certificateCE Certified (LVD/EMC/RoHS) | CQC | GB/T 18801-2015 Certified
Recommended Room Size Up to 130m2
Product Manual Click to view the Smart Air Blast Manual

*What is CADR and how is it different from an air purifier airflow? Learn more here »

Which Purifier Should I Buy?

Choosing the right air purifier can be difficult for first-time buyers. Here’re some important things to consider:

1. Know Your Purpose

Do you have any particular needs? HEPAs are enough for allergies and asthma, but recent renovation may require a carbon filter.

2. Know Your Size

The Sqair purifier is ideal for bedrooms, but larger spaces like offices or hospitals may require the more powerful Blasts.

3. Know the Costs

The main costs of air purifiers are filter replacements. Different purifiers have different HEPA lifespans and costs.

Smart Air Family

DIY1.1 Sqair Blast Mini Blast
Room Size










Max Noise





HEPA Lifespan 4 months 6 months 13 months 22 months
Warranty 1 year 2 years 2 years 2 years

The Blast FAQs

Are Smart Air purifiers better than other air purifiers?

Smart Air purifiers use the same cleaning principle as most other air purifiers. The technology behind air purifiers is not complex, and readily available.

However, Smart Air is the only air purifier company committed to transparent communication through open-data. We avoid overcomplicating our air purifiers with high markups and marketing gimmicks. Smart Air purifiers are honest, data-backed, and streamlined to do one thing: clean air.

And because we don’t overcomplicate things, our purifiers are some of the quietest and most energy-efficient on the market.

Can Smart Air’s purifiers filter COVID-19?

HEPA filter air purifiers like Smart Air’s have been shown to filter out COVID-19 viruses, and lower transmission. View the CDC data on how HEPAs reduce COVID-19 transmission here.

What pollutants does the Blast filter?

Smart Air purifier’s HEPA filters capture many types of particulate air pollution, including nanoparticles as small as 5 nanometers (1/10th the size of COVID-19) to 30 μm (the size of pollen). The whole range includes viruses, bacteria, PM2.5, PM10, pet allergens, dust, and mold.

An additional activated carbon filter can be added on top of the HEPA filter in all of Smart Air’s products. The carbon filters can absorb VOCs (Volatile Organic Compounds) such as formaldehyde, paint thinners, petroleum fuels, or dry cleaning agents. Carbon filters also remove odors. Learn which filters you need in our in-depth guide on air purifier filters.

Learn which filters you need in our in-depth guide on air purifier filters.

Where should I position my Blast air purifier?

Smart Air tests show the position of an air purifier in a room does not matter, as long as: 1) The air purifier is at least 6 inches (15 mm) away from the wall. 2) The air purifier is strong enough for the room it is in.

How to know when it is time to replace the Blast’s HEPA filter?

We recommend replacing the Blast filter every 21 months. But the truth is the exact time depends on many factors such as the number of hours used and local pollution levels. The most accurate way to determine when to replace a HEPA filter is to use an air quality monitor. Learn More: How to use an air quality monitor to test a HEPA filter

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Additional information

CADR (m³/h)

507 – 680 – 890 (low – mid – high)

Noise Level (dB)

38 – 43 – 48 (low – mid – high)

Room Size

Up to 130m² (1400 sqft)

Power (W)

64 – 88 (low – high)

HEPA Lifespan

5280 hours (22 months with 8 hours of daily use)

6 reviews for Blast Air Purifier

  1. 5 out of 5


    We couldn’t be happier with our Blast. I work in a large apartment that has been converted into an office. Some of my co-workers have small purifiers in their closed offices, but my desk is in the 70m2 open-plan living room and the front door is often cracked open to run cables back and forth so I knew we needed a powerful unit. The Blast arrived just in time for the recent Beijing sandstorm (2000+ AQI outside) and it was down to 30 AQI within half an hour. I couldn’t believe it, nor how quiet the machine is. It’s almost silent, even on the highest setting. We’re in love!

  2. 5 out of 5

    Brian Meyers

    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

  3. 5 out of 5


    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!

  4. 5 out of 5


    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. 5 out of 5


    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. 5 out of 5


    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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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.