Description: Professional air care, removal PM2.5, second-hand smoke, odor, and other odors. True HEPA Filter reduces pet odors, and traps pet fur and other contaminants It also helps relieve allergies by capturing airborne contaminants such as dust, pet dander, pollen, and mold. The air cleaner makes as little noise as 30dB on its lowest setting, so it doesn’t disturb you while you rest. Use fan to accelerate air flow, the machine releases a large number of anion to purify air odor , built-in purification sponge to filter dust and foreign matter, improve air quality. It is small size and modern design make it easy to fit in any small areas or rooms.Perfect for office desktop/mini bedroom/office/car/living room or take to travel etc. Specification: Material: Plastic Size: 60x60x131.8mm/2.4x2.4x5.2inch Rate voltage: 5V Power Mode: USB Noise: 30db Anion Concentration: 3 Million The anion concentration is 300 W Package Includes: 1 Piece Air Cleaner 1 Piece USB Cable 1 Piece Manual 1 Piece Filter Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.