Humidifier: Get a 3L USB mist humidifier! Strong: With a double nozzle design for heavy humidifying. Large tank: With a 3000ml water capacity - no need to refill all the time. Automatic: With a 12-hour automatic power-off. Quiet: Stays under 20 decibels so you can sleep easily. USB-powered: Comes with USB charging cable. 3L Usb Mist Humidifier | Living Social