air ionizer purifier 1.Air purifier with HEPA 2.Ionizer 3.Active carbon pre-filter 4.Tio2 removes odors Detalis ... carbon filter---Absorbs harmful gases and malodors in the air like formaldehyde,benzene,cigarette smoke,food smells,and other ... hydroxyl radical,photocatalytic oxidation can effectively disinfect,deodorize and purify air.Smoke and dust sensor---Automatic perceived indoor dust, cigarettes, ...