... adsorption in odors pleated air filter type with gauze backing honeycomb activated carbon air filterbetter adsorption ... in effect by handling smell and contaminated .used in airport , CMOS chip factory,film factory, library, home air conditioner, refrigeratory, martial ... the benzene,formacldehyde, ammonia .. MEDIA: Activated carbon aperturestandard thickness of filter:22 mm or 46 mm