Car Air Purifier Ionizer HEPA Filter Freshener, Air Cleaner for Car Home Office 12V Adapter Removes Cigarette Smoke Bacteria Bad Odor Removes Smells Air Cleaner Black Small size,while multipurpose purifier,you can use not only in car,but also in office,In maternal infantile ward,in bedroom.Eliminate dust of air conditioner,secondhand smoke in the car, off-gas, gasoline smell of the engine, bacteria on the steering wheel, the formaldehyde produced by cushion leaher. No.1 Photocatalyst:This can effectively discompose harmful gases, like formaldehyde and benzeneammoniaTVOC, and finally turn out water and carbon dioxide, which helps avoid secondary pollution, and realize thorough purification. No.2 Anion Filter:Through high-voltage discharge at a top speed, the purifier can turn out more than 3 million pcs/cm3 anion. And your car can thus become an ion oxygen bar. No.3 Cocoanut Active Charcoal Filter:This will absorb harmful and even fatal gases, like formaldehyde, benzene, dimethylbenzene, methylbenzene,and etc. No.4 HEPA Filter:This will filtrate granule, and can clear smog and PM 2.5;No.5 Cold Catalyst Filter:This will filtrate large particles, dust, unpleasant odors and etc.