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 216,Dust 201.3,Pollen 230.9 *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)Long-lasting Cleanable/True HEPA 3)Activated carbon filter for reducing odor 4)3 UV bulbs 5)Photocatalytic filter 6)Negative-ion generator(Ionizer) *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 *LCD displayer *Remote control