Ultraviolet sterilization: Air purifiers can irradiate microorganisms (bacteria, bacteria, etc.), disrupt the function of nucleic acids, cause the death of microorganisms, and achieve the purpose of disinfection. It can effectively clean rooms with an area of 10-25 square meters. Does not use UV rays to irradiate the skinEffective HEPA filter: HEPA grade filter and high activated carbon filter efficiency work perfectly together: filter 99.97% of dust, pollen, smoke, odor, bacteria, PM 2.5, particulate matter, dust Mites, mold spores and pet dander can be filtered down to 0.3 microns. Ozone-free. 3 kinds of lights: Our air purifier will automatically detect 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 good and average, and green light means the air quality is good. Silent air purifier: 360° silent air duct design at the air inlet and outlet. The minimum noise of the filtered air is only 35 decibels. Create a completely calm and relaxing environment for you to sleep peacefully without interruption. Portable design: The air purifier weighs 200G, very small and lightweight, perfect for cars, corridors, study rooms, bedrooms, offices, kitchens, etc. Just a USB cable can be used to charge using an adapter (USB interface), laptop or mobile power supply.