Product Name: Activated Carbon Panel Air Purifier Type: Panel Filter Filtration Grade: Pre Filter Medium Material: Fiberglass Clapboard: without Clapboard Trademark: AST's Brand or OEM is available Transport Package: Carton Origin: China HS Code: 84219990 Product Description Features and applications:Effectively eliminate low content harmful VOC including Tolune & formaldehyde.For different target harmful gas,corresponding chemical-impregnated obsorbents are optinally available.frame Material: Cardboard,PETMedium:Activated carbon,chemical-impregnant carbon,obsorbent with catalysts and oxidizerType 1 - Remove FormaldehydeType 2 - Remove AmmoniaType 3 - Remove VOCType 4 - Remove smokeType 5 - Remove SO2,NO2,O3Absorptivity:80%-95%