O3 Pure Closet Space Ozone Air Purifier Deodorizer and Odor Eliminator, Small Full 1 year manufacturer warranty backed by o3 pure and kel technologies Designed to neutralizes and combat odors and bacteria in small spaces (30-120 sq. ft.) Ideal for laundry rooms, under kitchen and bathroom sinks, pet areas, garbage rooms, and of course closets Removes musty smells from clothes and linen with powerful filter less anion and oz.one technology Effective against bacteria, viruses, pet odors, cigarette smoke, mold, mildew, and fungus