Air Purifier with the following features: *Six layers of filters for air treatment to ensure you fresh air *Air flow: 500CBM/H;CADR:200cfm *CADR somke 212,Dust 224,Pollen 236 *4 fan speed settings: Turbo/High/Middle/Low *Turbo:500CBM/H;High:400CBM/H;Middle:300CBM/H;Low:200CBM/H *Noise:<55dB *Coverage area: 350 sq.ft *Filtration system: 1)Washable prefilter for large particles 2)Cleanable/True HEPA and activated carbon combined filter 3)2 UV bulbs 4)Photocatalytic filter 5)Negative-ion generator(Ionizer) *Powerful UVC germicidal irradiation *Effective UVC and photocatalytic sterilization and decomposition *Smoke,Gas sensors to detect the air quality and control the working mode accordingly *Maintenance indicator reminds the user to check filter *3000Hrs countdown timer for HEPA checking *Indicator for UV bulb maintenance *Colorful LED displayer *Remote control *Timer:1-12Hrs