Hunter 30398 Quiet Flo Air Purifier Air purifier with True HEPA filtration system for rooms up to 20 by 20 feet CADR-certified rating of 260 for smoke and dust and 245 for pollen; whisper-quiet 3-speed fan Separate carbon pre-filter reduces odors; LED filter-change indicator; remote control Electronic controls with 1, 2, 4, and 8-hour auto run timer; portable, space-saving design Measures approximately 20 by 16 by 9 inches; 5-year limited warranty