... purifier 1.Lower noise Motor 2.Pre-filter+HEPA+Active carbon+N-ion 3.Air purifier ozone 4.Manufacturer;OEM Detalis ... formaldehyde,ammonia,benzene, TVOC,and other decoration pollution.Alveolate modified active carbon, efficient removal of smoke, musty smell more than three ... times.Finally, the filter is decomposed into water and carbon dioxide, no secondary pollution. It is an internationally recognized ...