Blueair 400 Series HEPASilent Particle Filter
Compatible with these Blueair purifiers: 402, 403, 450E (any model number beginning with a 4)
Patented HEPASilent filter
technology generally provides higher filtration performance than other
air purifiers, trapping up to six times more dirt. Fine polypropylene
fibers effectively capture 99.97% of airborne particles. The Blueair
3-stage progressive filter effectively removes every type of particulate
air pollutant,, including allergens, pollen, mold spores, dust, pet
dander, bacteria, and viruses.
