The advanced 3-in-1, whisper quiet, air-cleaning system by Honeywell combines three powerful technologies into an attractive and compact tower design. Its germ fighting Ultraviolet Technology removes germs such as viruses, bacteria, fungi and mold spores while its permanent HEPA filter is efficient at removing 99% of airborne particles such as mold spores, dust, pet dander, tobacco smoke and pollen while completely changing the air in a 12' x 15' room every twelve minutes. The enhanced Carbon Zeolite pre-filter removes common household odors. This advanced air cleaning system also features easy-to-use electronic controls that include 12-cleaning power levels, 1 to 18 hour automatic shutoff timer, optional ionizer, electronic time to clean filter indicator and optional oscillation to increase air circulation. Its Permanent HEPA filter never needs replacing allowing for great savings. Size: 29"H x 5"W x9"D. Weights: 15 lbs. Five-year manufacturer's warranty.