1. Kindly ReminderOnly tap water could be used for this humidifier. Dont use pure water ,distilled water, mineral water or essential oil, which will cause water to accumulate in the mist outlet. soak the cotton filter core for A FEW minutes before use. 2. Mini Cool Mist HumidifierWith colorful atmosphere light setting,this mist humidifier creates a peaceful ambiance while delivering soothing mist. It is suitable for kids and adult who are afraid of the dark in night. 3. ControlThe portable humidifier is easy to operate. One button controls functions. You just need to press the power button to control the mist. It is an ideal gift for children, friends, couples and so on. 4. Working It will not disturb you when you sleep or work, it can effectively moisturize dry skin and help you reduce skin peeling. 5. This personal USB humidifier is lightweight, you can bring it where. It's for your home room, baby bedroom, office desktop, car, travel or yoga.