Ultraviolet sterilization: The air purifier can irradiate microorganisms (bacteria, bacteria and other bacteria), interfere with the function of nucleic acid, kill microorganisms, and achieve the purpose of disinfection. It can effectively clean a room of 10-25 square meters. Does not use UV rays to irradiate the skin Effective HEPA filter: The perfect combination of HEPA filter and highly active carbon filter: filters 99.97% of dust, pollen, smoke, odor, bacteria, PM 2.5, particles, dust mites, mold and pet dander can filter down to 0.3 microns. No ozone. 3 kinds of lights: Our air purifier automatically detects the air quality within 3 minutes after it is turned on: red light means the air quality is too bad, yellow light means the air quality is average, green light means the air quality is average, and the air quality is good. Quiet Air Purifier: 360 quiet air channel design at the air inlet and outlet, the lowest noise in the filtered air is only 35 decibels. Create a completely calm and relaxing environment, so you can sleep peacefully without disturbance. Portable design: The air purifier with a weight of 200G is very small and light, perfect for cars, corridors, study rooms, bedrooms, offices, kitchens, etc. With a USB cable, you can charge it with an adapter (USB port). laptop or power .