O3 Pure Whole Home Air Purifier This unit does not ship to California or Canada Added features include a cleanable HEPA Filtration System Ultra Violet Sterilization - Germicidal UVX Light. / Positive and Negative Ions This 7-mechanism system helps reduce not only pollution from the air, but also reduces pollution embedded in walls, ceilings, floors, carpets, furniture, clothing, and on countertops and other surfaces.