... Car Oxygen Bar (anion air purifier, anion purifier, purifier, ozone purifier) Model TT-612 Features:1.Ozone density: 0.06 ppm ... Blue, Red, Black and Silver Functions:---Lightly ozone can sterilize and disinfect the air of automobiles, restrain bug and virus propagating ... can dispel dust, smog in the automobiles, make the air clear.---Ozone can dispel mildew smell, smoke smell, and formaldehyde, ...