QT3 E11 Filter (2 pack)
$24.99
Replacement HEPA filter (2 pack) for the QT3 portable air purifier. HEPA filters capture particulate pollution like PM2.5, dust, and pollen. HEPA filters are the key to clean air, so make sure to replace them regularly. The QT3’s HEPA can give you up to 800 hours of clean air.
QT3 EPA Filter
Clean air, wherever you go
The QT3 portable EPA filter protects you from air pollution
Air pollution is a serious environmental and health issue. And it’s hard to escape – even our homes are filled with these dangerous microscopic particles.
The QT3’s EPA filter effectively traps particles like PM2.5, dust, pet fur, viruses and mold. You won’t have to worry about your allergies or asthma any longer!
 PM2.5 |
 Dust |
 Viruses |
 Allergens |
 Pollen |
 Mold |
Are HEPA/EPA filters effective against COVID?
A common concern is whether HEPA/EPA filters can filter viruses like the COVID-19 coronavirus. HEPA/EPA 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/EPA filters work great at capturing viruses. This is because a HEPA/EPA filter works not like a net, but through a process called diffusion. Learn more about how this works here.
How often should I change my QT3 E11 filter?
We recommend changing the filter after 800 hours of use. The QT3 has a built-in feature to remind you when 800 hours of use have passed.
Can I wash a dirty HEPA/EPA filter?
Unfortunately not. We ran experiments to test this and found that washing HEPA/EPA filters does not prolong their lifespan. In fact, washing HEPA/EPA filters with water actually decreases performance. That’s why we recommend you replace your HEPA/EPA filter after the maximum hours of use.
| Your Purchase Includes | 2 × QT3 EPA filters |
|---|---|
| Type | E11 grade (95%) |
| Color | White |
| Lifespan | Approx. 800 hours |
| Dimensions L x W x H (mm） | Single Filter: 118 x 112 x 88mm |
Read more about how to dispose of a used HEPA filter here.
Additional information
| Weight | 0.5 kg |
|---|---|
| Dimensions | 23.6 × 12.4 × 5.3 cm |
| Brand | Smart Air |
| Colour | White |
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