Features and Benefits: CADR certified rating for rooms up to 12 x 12, 90/Smoke, 90/Dust, 90/Pollen Changes the air in the room up to 6 times per hour Separate washable pre-filter Ionizer with separate on/off switch Mechanical filter change reminders Portable design for floor or bookshelf Whisper-Quiet 3-speed Hunter fan Replacement Filters and Pre-Filters: Replacement HEPA filter: 30928 Replacement carbon pre-filter: 30901 Dimensions and Weight: Size: 15.69 x 14.38 x 7.80 Weight: 10.0 lbs. Warranty: 5 year limited warranty Please Note: This appliance complies with the U.S. Electrical Standard.