【Air Purifier with High Efficiency Double Layer Filter】 3-stage filtration: The first effect filter and the activated carbon filter work perfectly together. Air Purifier, USB Powered, Air Purifier with Night Light, PM2.5 Elimination of Cigarette Smoke, etc. Filters 99.97% of dust. 【Energy Saving】Thanks to advanced brushless motors, the air purifiers only consume 2W of power. This air purifier is used for 24 hours, which is 6% to 30% less than other air purifiers. Does not emit UV radiation and harmful air pollutants. 【Simple operation and one button, two modes】 The two modes of the home air purifier are realized by one button, and different modes correspond to different speeds. Mode 1: Sleep, the ambient light is dimly bright, emits dim light at night, and the speed is low; Mode 2: Natural, with ambient light decoration around the button and air outlet, the speed is fast. Adjust it at will to meet different needs. 【Night light & 【Aromatherapy】The real air purifier is equipped with an