UV sterilization The air purifier can irradiate microorganisms bacteria, bacteria and other bacteria, disrupt nucleic acid functions, make microorganisms die and achieve disinfection purposes. And it can effectively clean rooms up to 1025 sq m. Does not use ultraviolet light to irradiate the skinEfficient HEPA filter The HEPA class filter and the high activated carbon filter efficiency work perfectly filtering 99.97 of dust, pollen, smoke, odors, bacteria, PM 2.5, particles, dust mites, mold spores and pet allergens can be filtered down to 0.3 microns. Ozone free.3 types of lights Our air purifier will automatically detect the air quality after turning on the machine within 3 minutes, a red light indicates that the air quality is too poor, a yellow light indicates that the air quality is average, and a green light indicates that the air quality is good.Quiet air purifier air intake and outlet 360 silent air duct design, the lowest and lowest noise level of filtered air is only 35 decibels. Create a completely quiet and relaxing environment, allowing you to sleep peacefully without disturbance.Portable design air purifier weight is 200G, it is very small and light, perfect for the car, halls, study rooms, bedrooms, offices, kitchens, etc. With a USB cable, you can use an adapter USB interface, laptop or mobile power to charge.