Cannon DIY Air Purifier

Rated 3.40 out of 5 based on 5 customer ratings
(5 customer reviews)

7,000 incl. Tax

Clean air should not be a luxury! All you need to breathe clean is a fan and a HEPA filter to clean PM2.5, PM10, and allergens from the air.

What’s in the box?

  1. 1 White Cannon Fan (some assembly required, tools provided)
  2. 1 HEPA Filter with Pre-filter attached
  3. 1 Velcro Strap
  4. 1 Info Booklet

Please note that there is some assembly required. The legs of the Cannon have to be screwed on and there’s a handy screwdriver in the package. Then the HEPA filter has to be slipped under the elastic strap. See our video below that explains the assembly process. If this is too complicated for you, we can come over and assemble your fan for a small fee. Send us a message and we’ll figure out a time that works.

Watch this video to learn how to assemble your Cannon DIY Air Purifier:

The Cannon DIY’s CADR (smoke) (Clean Air Delivery Rate) is 289 CMH (m3/hr).

Technical details:

Room Size: up to 250 sq-ft

Filtration Technology: 2 Stage, Pre-filter, H13 HEPA filter

Filter Life: 720 hours (3 months at 8 hrs/day)

Noise Level: High 56 dB, Medium 52 dB, Low 45 dB

Fan Speed: 3 speeds: High, Medium, Low

Energy Consumption (on High): 65 W/hr (electricity cost about Rs 65/month using for 8 hrs/day)

Constructed with: ABS Plastic

Dimensions (L x W x H): 13 x 15 x 13 inches

Weight: 3 kgs

Ionizer / Ozone / UV: No!

Our H13 HEPA filters are CE certified:

CE Certified

CE 2047 according to PED (97/23/EC). Certified by Regal Quality Registrars, Inc, UK. Made in India with imported HEPA material.

Your Purchase Includes                                  1x Cannon Fan, 1x Cannon HEPA, 1x Strap, 1x Smart Air Handbook

Colour                                                                   White, Grey, Black

CADR (cm3/h)                                                     131 (with pre-filter), 170 (without pre-filter)

Sound (dB)                                                          53 – 58 – 61 (low – mid – high)

Power Consumption (W)                                65

Electricity Voltage (V)                                       220 – 240

Recommended Room Size (m2)                   Up to 30

Dimensions L x W x H (cm)                            36.5 x 33.5 x 35

For assembly instructions, see this page.


Clean air should not be a luxury!

Smart Air founder Thomas Talhelm started with a goal of making air purifiers affordable for everyone. Cannon DIY air purifier does exactly that.

Clean Air for your family

How effective is the Cannon DIY Air Purifier?

From our testing, we’ve seen that the Cannon is 92% effective against PM2.5 in a room size of 323 sq-ft.



Additional information

Weight 9.5 kg
Dimensions 10.5 x 15 x 18 in

5 reviews for Cannon DIY Air Purifier

  1. Rated 4 out of 5


    Just wondering how should we clean the filter?

  2. Rated 5 out of 5


    Works as well or better than BluAir / Sharp units I have. Economical and convenient availaibility of replacement filters. Keep up the great work!

  3. Rated 4 out of 5

    Sri (verified owner)

    Can feel the difference in the air quality.

  4. Rated 3 out of 5

    Mayank (verified owner)

    Its doing the job of cleaning the air — AQI drops from 150+ to 55-65, PM2.5 goes under 15 as per Laser Egg monitor within 2-3 hours with window slightly open for ventilation (AQI drops below 30 if room is tightly closed, though this is not recommended) — on “high” fan (medium and low fan speeds are useless); BUT the design is not kid friendly — strap provided is not what is sold separately, becomes lose often, extremely inconvenient to put back on; If filter is removed, the fan gets exposed which is dangerous; A lot of air is being deflected back as air is pushed on to filter — a pull approach would have worked same/better with a less powerful silent fan — it does make significant sound in high speed; I ordered extra pre-filters and face masks, for which delivery charge was added-up, even though they didn’t add any extra weight to consignment;

  5. Rated 1 out of 5

    n_anand (verified owner)

    I don’t feel air flowing thru the Hepa filter. Is that normal?

    • Paddy Robertson (verified owner)

      Hi n_anand! We’ve run tests on the Cannon, and despite it feeling like not much air is flowing through the HEPA, there is still clean air coming out and its enough to clean a 300sft room! You can see Tom’s HEPA outlet test on Youtube showing how we’ve tested this: (this test was done on the DIY 2.0, the Cannon has an even stronger fan!)

      You can also find more answers to frequently asked questions on our data pages:

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