Features:*Water-droplet backflow black technology, ultrasonic atomization technology, fine water mist, while moisturizing the airs, it can also relieve stress, help you restore your mood, and make life more interesting.*The bedroom humidifier will automatically shut down after 4 hours of continuous use, and the machine will be powered off regularly to protecting the machine, which is durable and worry-free.*800ml water tank, the water level detector monitors the water level in real time, if the water level is too low, the indicator light turns-orange, prompts to add water, and then shuts off.*Our large room humidifier is virtually quiet and also shuts off automatically when out of water; safe to use in nurseries and bedrooms.*Easy to add water: The first method is to open the water tank and fill it up to the water level. The other is to the outlet of the water-drop and inject an appropriate amount of bottled water. You can choose the method that is more convenient for you. Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurement Material: ABSSiliconeProduct size: 12*23.1cmWorking temperature: 0-40CWater tank capacity: 800mlPower supply: USB plug-inPackage List:1 x Anti-Gravity Humidifier