1: The initial effect nylon mesh can filter hair and debris. H11 high-efficiency filter can effectively filter PM2.5 and PM0.3. Customized composite activated carbon can effectively adsorb formaldehyde, benzene and other harmful gases to the human body. 2:Large air volume design, CADR value is 60m³/h, 20m² room can be purified 5 times per hour. 3: 2 gear speed regulation. 4: Filter life reminder ,Carbon cotton+H11 high-efficiency composite mesh 5: Power: 10 W · Product size: 200*210*240mm · Net weight: 2kg · Color available: White & Black