The USB humidifier is portable for various occasions. Silent work with multi-color night lamp, the humidifier is no influence for your work or sleep. Humidify the air, helps to get rid of flu and cold germs to take care of family members and protect them from getting sick. Features: Large Capacity and Long Using Time: 320ml tank capacity & 40ML/H spray volume can work for 4-10 hours. Silent Design: Silent work with multi-color night lamp, the humidifier is no influence for your work or sleep. Two Mist Mode: Ultrasonic continuous spay and Interval spray mode (spray 3 seconds and then stop 3 seconds become a cycle) for different demand. Portable Small Size: Small and lightweight to take it wherever you go. The humidifier size is 6868143mm, it can be placed at bedroom, living room for babies, kids, or take to office, car or travel easily. Intelligent Switch Off: It automatically turns off when water is lower than safety line. The steam does not leave drops on the desk, makes sure your