The Blueair HEPASilent filter combines three technologies:
1. The Ionic Chamber
2. The Three Stage Progressive Filter
3. SurroundAir

Particles, including dust, pet dander, molds and bacteria are drawn into a sealed chamber inside Blueair Air purifier. While in the chamber the particles are given a slight electrical charge and move to the particle filter.

The Blueair progressive filter has three separate layers of ultra thin fibers in three different sizes. These fibers are loosely packed to prevent clogging and maintain the lowest resistance possible in mechanical filtration. In each stage of filtration the fibers become progressively smaller. The outer layer traps the largest particles including pollen and dust. The middle and inner layer trap even the smallest submicroscopic particles including smoke and bacteria. Because the particles have a slight electrical charge, they become irresistibly attracted to the polyproplyne fibers, where the become trapped forever.

The Blueair SurroundAir technology uses a whisper quiet fan to draw air into the Blueair purifier. Minimal force is needed to move air through the three stage filter because of the low density of it's fibers. Air is than released back into the room via diffusion.

No. In fact, Blueair Air Purifiers actually reduce ozone in the air.

Clean Air Delivery Rate, as determined by The Association of Appliance Manufactures (AHAM), an independent laboratory.
Blueair has the highest CADR for dust, molds and smoke for any air purifier in its class.

Yes. The housing is all steel and has a baked on enamel finish that does not off gas. Next, the filter and the filter housing are bio-degradable. Also Blueair actually reduces ozone, a known lung irritant. Finally, Blueair uses a highly efficient motor and fan. Recognized by the EPA, FDA and ALA (American Lung Association)

After six months of continuous use.

The BlueAir SmokeStop filter has the same three stage particle filter as the HEPASilent filter, with the addition of activated carbon, for enhanced removal of smoke, odors and chemicals.