Description: Dissolve cigarette smoke, dust and even PM2.5 air pollutants Easy to use, plug the air purifier in the cigarette lighter socket Dual USB for charging car electronics or cell phone or something eles. Max output current up to 2.1A. Technology: Photocatalytic Oxidation When the device is connect with power supply, the light is red, then when you start the air purifier function, the light turns to blue Specification: Rated Voltage: 12V Power Dissipation: less than 2W Anion Concentration: 3,000,000 Package Includes: 1 Piece Car Air Purifier