... -5532-5932-64 Features:Super-powerful,Highly efficient,4-Stage air filtration system: Pre-filter + HEPA + Active carbon + N-ion ... carbon filter---Absorbs harmful gases and malodors in the air like formaldehyde,benzene,cigarette smoke,food smells,and other ... can effectively disinfect,deodorize and purify air.Smoke and dust sensor---Automatic perceived indoor dust, cigarettes, pollen and various ...