H13 True HEPA Filter: FITNATE HEPA air purifier has 3-stage filtration system, can efficiently capture 99.97% of air particles from all around as small as 0.3 microns such as smoke, pet hair, dander, dust, pollen, odors, etc. Powerful & Effective Purification: The home air purifier covers an area up to 1076ft²(CADR 139 m³/h), filters air 5x per hour in 215ft². Perfect for small to large room,bedroom, baby room, living room, kitchen, office, dorm room.