DIY1.1 HEPA Filter

(1 customer review)


13 in stock

This HEPA filter from Smart Air Philippines traps small particles like PM2.5, soot and pollen. They’re a technology that was invented over 70 years ago and they’re not expensive! We’ve thrown out the marketing hype other companies use, and provide a simple, effective no-nonsense HEPA filter that can capture over 99.5% of all particles to get you breathing safe


IMPORTANT: Due to high volume of orders and messages we receive at this period, we kindly ask to patiently wait for our email that confirms your order and payment. We’ll also advise once your Smart Air order is ready. =)

Please note that proof of payment must be sent within 24 hrs to confirm the order. No reservations.

Breathe safe!



Your Purchase Includes                                1x DIY1.1 HEPA Filter

Type                                                                      H12 (99.5%)

Colour                                                                  White with black rim

Lifespan (hours)                                                1000

Dimensions L x W x H (cm)                            30 x 2 x 30

H12 HEPA filter – filters out 99.5% of all particles

HEPA filters (or High efficiency particulate air) are filters that capture the really tiny air pollution particles that penetrate into our lungs and blood. The Smart Air filters capture 99.5% of even the tiniest particles, cleaning out smog, soot, PM2.5, pollen and mould.

Buy now - Philippines HEPA filter for capturing PM2.5, pollen, viruses, mold and bacteria

How often should I change the HEPA filter?

We ran tests in our lab in Beijing, showing the filter should be replaced 140 days of use at 8 hours a day. That’s maximum 1000 hours in total. For the Philippines, we recommend between 140-160 days based on where you live. Living next to the dirty EDSA that’s polluting Manila? You may even need to replace it sooner.

Here’s one filter a Smart Air user from Manila in the Philippines showed us, which they’d used after just 11 weeks. Why so black? That’s because this user was living next to Manila’s busy roads, where PM2.5 levels are at their worst.

Dirty HEPA filter Manila, Philippines

Where did the ‘140 days’ come from? Smart Air co-founder Gus tested a single HEPA on his Original DIY for 200 days to see how long it would last in real Beijing air. After 100 days of use at 8 hours a day, effectiveness dropped 4%. After 200 days of testing, Gus’s dirty filter was only removing half the particles in the room.

HEPA filter lifespan when used every day in

We know that buying new HEPA filters is a significant recurring cost, so we do our best to keep prices low.

Buy an Reliable HEPA For the Right Price

We wanted to know if HEPA filters could be made even cheaper. We tested a filter we bought from China for 220 pesos and compared it to our own filters. The cheap HEPA filter performed much worse. We recommend avoiding unknown HEPA filters, with no performance or effectiveness tests to back them up.

Smart Air India effective and quality HEPA filters - buy now

Read more about the tests we did with a cheap HEPA on our blog.

Can I wash my HEPA filter?

We tested this in our labs, we tried washing, vacuuming and scrubbing a HEPA filter to find out if there was a cheaper way of making your filter last longer. Turns out none of these methods were effective in increasing the lifespan of a HEPA filter, so we still recommend replacing them when their time is up.

Can you wash a HEPA filter?


CE Certified

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

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1 review for DIY1.1 HEPA Filter

  1. Dr Rajesh

    very good device.I will recommend for my patients

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