Remove smoke small or another. Generates millions od Negative lons. Pocket size easy to plug into cigarette lighter. Working Voltage:DC12VPower Consumption:0.6wNegative Ion:130,000 ions per centimeterOzone output: <0.04ppmSize:22.5x85mmProduct Weight:35gMaterial:aluminum alloyPacking:blisterCarton meas:65X33X49cm 160pcs/ctn;N.W/G.W:5.5/6.5kgs SG140 car air purifier