Winix 5500-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter True-HEPA filter captures 99.97% of airborne pollutants; dust mites, pet dander, pollen and other allergens as small as 0.3 microns. Washable AOC Carbon Filter, made from activated carbon granulars for removal of household odors. PlasmaWave acts as a permanent filter to safely break down odor, allergens, chemical vapors and other pollutants - with no harmful ozone. Smart Sensors gauge the air and our Auto Mode adjusts the fan to filter the air as needed; with a sleep mode for silent night-time operation. CADR rated for 360 sq. ft. room size. Suitable for medium and large rooms; kids bedrooms, family rooms and kitchens. AOC (Advanced Odor Control) Carbon Filter - Reduces VOCs and household odors from cooking, pets, and smoke. It is designed to catch airborne particles found indoors, which also helps prolong the True HEPA Filter life. True HEPA Filter- Captures 99.97%* of airborne allergens including; pollen, mold spores, dust, pet dander, microbes, and smoke (particles as small as 0.3 microns in size). PlasmaWave Technology