Bell & Howell® Desktop Ionizer cleans and purifies the air so quietly, you won't even hear it! Streams of negative ions are released to quickly remove odors, fumes, dust, smoke, pet dander, pollen and other pollutants from home, office or workshop. Unit comes with AC adapter and uses just 7 watts of power, less than a 60-watt bulb! Filters easily rinse out and never need replacing. Two-speed operation. 12" H.