Amcor AM-90 Air Purifier with Electronic Controls 44-watt air purifier/ionizer for rooms up to 400 square feet HEPA-type filter removes up to 99-percent of airborne pollutants Filter can be washed at least 8 times; quiet operation 3 fan speeds; electronic controls; LCD display; clock; 8-hour timer Measures 7 by 14-1/2 by 19-3/4 inches; 1-year limited warranty