This mini car air purifier is easy to use, just plug in this in your 12V car socket,very convenient. It adopts pulse oxygen anion to make your car internal environment more healthy. Material: aluminum alloy Ingredient: anion & ozone Working Voltage: 12V/DC (Car Cigarette Lighter) Power: less than 0.8w Negative Ions Concentrations: 3800000pcs/cm Ozone Concentration: 3 mg/h Working Temperature: -10℃ to 40℃ Storage Temperature: -10℃ to 60℃ Color: Black Indication Light: Blue LED Application area: Car, office, home Package : 1 x Car Air Purifier