... in car, such as benzene,formaldehyde,ammonia and TVOC,up-to-standard rate:98% b.Sterilize the harmful bacteria ... purifier primarily. The high standard test only two hours using the product to formaldehyde adsorption rate is as high ... occupy the home: the sitting room, bedroom, kitchen, toilet, storeroom, cinema room, studio, cigar roomPublic space: office, conference room, hall, hotel, hospital, school ...