... tempered glassGenerator SettingExhaust air from rear side; galvanized steel molding frame, white coated steel coverIntake and Exhaust Air System5.5KW double intake centrifugal ... airFiltering SystemPre-filter, high efficiency filter, exhaust fiberglass filterRoof PlateGalvanized steel platesControl SystemFan operation switch, lighting switch, emergency stopSetting StyleSuspending ...