Bluelans Car Air Purifier,Ionizer, Air cleaner, Ionic air purifier, Car Air Freshener and Order Eliminator, Help Kill Germs and Bacteria's keeping you healthy (Black) Material: Aluminum Alloy Power: 0.8W , Ozone Concentration: 3mg/h Anion Concentration: 3800,000pcs/cm3 Working Temperature: -10- +40 Size (Lx Dia): 9cm x 2.3cm/3.54" x 0.91" (Approx.)