Pure Enrichment Pure Zone Elite HEPA Air Purifier 190 sq ftPureZone Elite safely sanitizes the air in your home or office making it more breathable, enjoyable and healthier. The sleek, modern design complements any decor and features a sleep mode for clean air while you and your family sleep, 3 speed settings, and an automatic 2, 4 or 8 hour timer to conserve energy and extend the life of the air filters. Using a 4 stage purification process which helps eliminate 99. 97% of particles as small as 0. 3 microns