... in vehicles, such as benzene,formaldehyde,ammonia and TVOC,up-to-standard rate:98%2.sterilize ... in vehicles,neutralize nicotine,prevent smoking harm and tailgas pollution4.remove peculiar or off odor5. ... refresh the air,refresh mind,balance blood and relieve the driving fatigue. B.Feature:1 ... .electification,24-hour operating,convenient and timely2.no secondary pollution and using injury C.Use:put in ...