Triple screen 7 grade purification function of high quality air purifier products briefly: 1, smell sensors detect the air quality, the whole circle of light with 2 display air quality condition 3, touch button operation, set the switch/auto/wind/sleep/timing/six keys 4, PG motor function, 3 shift speed, 5, and can use with ultraviolet sterilization function. 6, 24 hours timer shutdown automatic protection system