Lightweight and USB-C powered , It wont take so much space so you can use it anywhere! it sits perfectly at your bedside, work desk, by your babys crib, or in your car! Perfect as travel air purifier and as car air purifier. which can effectively filter any particles larger than 0.3 microns, such as Smoke, Pollen, Dander, Hair, Smell. no need to worry about any air quality problems anymore, just turn on the product and enjoy a healthy life. Perfect for Bedroom, Home Office and Small Room: 30 mins to breathe fresh in the small room (Coverage area 20 sqm) . It is a good gift for your family and your friend . Running at an ultra quiet , you wont even notice it working efficiently in the background while working at your desk or at your bedside while you're asleep. EASY TO USE. Please note For the health of you and your family, we recommend that you replace the filter cartridge once every 3-6 months.