Removing 99% of harmful airborne particles; capturing dust, pollen, animal dander, mold spores and tobacco smoke while quietly purifying and completely changing the air in a 13'x13' room five times an hour, our HEPA Air Purifier by Honeywell® also features both a Permanent HEPA & Washable Prefilter that never need replacing allowing for great savings. Size: 28"Hx6"Wx8"D. Weighs 12 lbs.