... mould and invisible all kinds of bacteria in air, effective to prevent a variety of diseases.Deodorization: can be completely ... in the airDecomposition: rapid decomposition air formaldehyde, benzene, ammonia, radon and the harmful gas of carbon dioxide.Purification: refining the liquid ... ,Oceania,South Asia,Southeast AsiaPicture showing,Picture one:how dose it workPicture two:Picture three,Picture four ...