Hunter 30027 HEPAtech Air Purifier and Ionizer, White Air purifier designed for room sizes up to 10 by 11 feet CADR 72 smoke, 62 dust, and 65 pollen; changes air up to 6 times per hour HEPAtech technology; separate carbon pre-filter; ionizer with on/off switch Top-mounted controls; portable, slim-line styling; whisper-quiet, 3-speed fan Measures approximately 14 by 7-3/4 by 14-1/2 inches; 5-year limited warranty