Filtrete Ultra Quiet Air Purifier, Circulates The Air More Efficiently Than A Hepa Filter, This Filtrete Air Purifier & Filter Is 98% Effective At Capturing Large Allergens Like Pollen, Mold Spores & Dust Mite Debris, Quiet Operation & No Ozone Generation, Contemporary Design Fits Into Any Room, 8.25" x 8.25" x 20.5".