features: 1. Nano activated carbon adsorption, deep purification, and easy breathing 2. The circulating air duct is equipped with dual gravity silent motor, which is quiet and does not disturb sleep. It silently guards quiet night and accompanies you silently 3. One-touch switch for easy air purification 4. Equipped with the function of flexible eye protection night light, it can be turned on automatically or turned off when it is turned on, bringing you a different purification experience. 5. The USB power supply design can connect the plug adapter to the charging bank and computer notebook, which is more convenient to use and can purify the air anytime and anywhere. Specifications: Product name: desktop air purifier Model: DGS-151 Product function: purification and disinfection Rated voltage: DC5V Rated frequency: 50HZ Output power: 5W Power supply mode: USB direct supply Filter type: composite activated carbon Disinfection type: UV light Product size: 21 x 12.3cm Material: ABS colour: white Package Contents: 1 x air purifier 1 x filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.