Air Purifier with High Efficiency Dual Layer Filter3 Stage Filtration: Initial Effect Filter, Activated Carbon Filter Work Perfectly Together. Air Filter, USB Power, Air Purifier with Lighting night, PM2.5 Elimination of cigarette smoke, etc. Filtering 99.97% of dust. Save EnergyWith advanced brushless motors, the air purifiers only consume 2W of power. This air purifier is used 24 hours, which is 6%-30% less than other air purifiers. Does not emit UV and harmful air pollutants. Simple operation and one button, two modesThe two modes of the home air purifier are realized by one button, and different modes correspond to different speeds. Mode 1: standby, the ambient light is dim, emit dim light at night, and the speed is low; Mode 2: natural, with the ambient light decoration around the button and the air outlet, the speed is high. Adjust at will according to different needs. Nightlight & AromatherapyThe real air purifier is equipped with an LED night light, and there are two brightness settings, and the brightness changes with the mode. aromatherapy and several sponges. Add aromatic essential oils to remove the bad smell. 360 Purification & QuietThe air purifier adopts a quiet air duct design with 360 degree air inlet and outlet, and the minimum noise is less than 32db; it is very suitable for a calm and soothing indoor environment and aids in deep sleep. Note: Please remove the plastic bag from the filter before use.