1 Decompose and absorb the the sulfid ,hydrid, benzene,leaven ect. Toxicant.

2 Release far infrared,carbanion, clean up the benzene, formaldehyde

  Ect. Toxicant

3 Get rid of the bad smell ,release negative ion, clarify air.provide you the flesh air.

4 strongpoint: competitive price ,cute toy style, beautify car.