Description: The USB Portable Humidifier creates a soothing personal space at home, office, car, or traveling. To use, fill bottle or cup with purified water, place the humidifier into the opening, making sure the filter is submerged, plug the humidifier into a USB port for instant comfort. Specifications: Material: ABS Voltage: DC 5V Power: 2W Container Capacity: 220ml Applied Area: 15?O Amount of water spray: mist: ¡§R50ml/hr Working Temperature: 10~40?? Operation instruction: 1, Open the cover, add 60ml water into the container(approx. 80% of container capacity) 2, Cover the container. 3, Connect USB cable with your computer or other USB port battery. 4, Press the button to spray. Attention: 1, Please keep the mouth of the spray clean and use clean water. 2, Please add water in time when used up. Package Included: 1 * USB humidifier 1 * USB cable 1 * User manual