Honeywell True HEPA Air Purifier wth 360 Filtration. True HEPA filter captures up to 99.97% of airborne allergens, 0.3 microns and larger. Laboratory proven to reduce bacteria & viruses; activated carbon pre-filter helps reduce unpleasant odors; patented 360 degree air intake and discharge; 3 cleaning levels; filter change calendar feature. Recommended room size: 10 x 15. 5 year limited warranty.