1.Material:PP,PET 2.Feature:purify air well ,with small volume,portable 3.Certificate:CE,CB,RoHS Features:Adopt high ... dust ,pollen,micro particles in the airDecomposition: rapid decomposition air formaldehyde, benzene, ammonia, radon and the harmful gas of ... sitting room, study, bedroom, children room, toilet, etc.2.Office: air-conditioned environment, the bathroom, tea and smoking room.3. ...