... 2.Pre-filter+HEPA+Active carbon+N-ion 3.Air purifier ozone 4.Manufacturer;OEM Detalis:Model Number AP001-01 ... essence removed 98% of formaldehyde,ammonia,benzene, TVOC,and other decoration pollution.Alveolate modified active carbon, efficient removal ... group release high concentrations of mould, allergen airborne viruses and other harmful substances.Steel body, environmental protection, elegant, ...