This is a lovely mushroom-shaped humidifier and LED night light. When used as humidifier, It can add 10ml of water to air each hour. When used as night light, the intensity of light slowly changes to give a romantic environment. To turn the humidifier on, you only need to click on the touch switch once, and you will see fine mist coming out from the top of the mushroom. The water bottle can hold 200ml of water. To turn the LED light on, double click on the touch switch.