The Nuairs Sterilizer Uses Titanium Oxide To Produce The Highest Strength And Longest Life C Band Ultraviolet Rays To Purify The Air With Up To 99.99% Sterilization. It Also Has No Dead Angles; Pulling Air From A Full 360 Degrees. Ozone Produces Powerful Oxidant Immediately Upon Reaction With Bacteria, Toxic Substance, Or Odor To Quickly And Efficiently Achieve Full Sterilization And Deodorization. Features: • Energy Efficient And Of Industrial Grade • Low Maintenance With No Consumables And Few Replaceable Parts Other Than The Uv Bulbs. • Can Be Opened From The Top For Cleaning And Bulb Replacement, But Cannot Be Opened When The Uv Lights Are On.