[Deep Sterilization and Deodorization] The donut air purifier adopts advanced ozone stereo ozone mode, which can easily eliminate carcinogens such as formaldehyde, benzene, quinone and other carcinogens in the air. air, as well as odors such as smoke, paint, and odors, create a feeling of comfort. Quiet Purification: The air purifier uses 10dB quiet operation, which effectively reduces noise, allowing you to enjoy quietly without disturbing your sleep. The buttons that correspond to the arc are activated with the touch of a finger. USB charging can be used for a long timeThe home air purifier adopts USB interface, the 700mAh large capacity lithium battery can be used for 7 days, and it takes about 3 hours to charge, which continuously removes pollutants in the air, and the mini design makes it easy to carry. Product size9*9*3cm. Wide useOur air purifiers are widely used in refrigerators, shoe cabinets, cabinets, leather products , travel bags and can also be used for sterilization of baby products, tableware and daily toiletries. We only sell air purifiers, not other items in the photo. Due to the difference between different monitors, the pictures may not reflect the color ur actual item. Due to manual measurement, please allow slight errors in size.