... humidifier takes an independent sub-structure UV air sterilization,HEPA,photo catalyst,Activated carbon, ions air purifier and humidifier:Model:B- ... more easy.Three fan speed controls:low,middle,high.UV/TIO2 photocatalyst: Kills essentially all bacteria, mold spores, viruses and ... the area of humidity 30%,UV air sterilization,HEPA,photo catalyst,Activated carbon, ions air purifier and humidifier