... anion to air,making air freshWe are a factory,offering wholesale Using with essence,aromatherapy effect is very well Functions: ... gas of carbon dioxide.Purification: refining the liquid water molecules from the water,releasing many negative ions, and renewable factor, ... large companies at oversea,such as,NS from Japan,INSTRORE from UK,AVON from USA, and CONAIR from canada.And we are both welcome OEMand ...