Mini Air Ultrasonic Humidifier USB Charging 5 Color Led Night Light AromatherapyWhy you need this small USB Ultrasonic Humidifier? 1. Make your home smell wonderful. 2. Prevent dry and chapped skin in dry winter months. 3. Humidify the air, breathe easier, and relieve cough and sinus congestion due to colds, allergies, and flu. 4. Reduce odors in your house from cigarettes, cooking, and pets. Portable for Home, Yoga, Office, Spa, Bedroom, Baby Room. 5.Perfect gift idea for family and friends who love aromatherapy or can benefit from Aromatherapy healing. How to use it? LIGHT Button Press first: turn on the LED light, color changes automatically Press second: choose one of LED light color you like MIST Button Press first: continuous mist coming out Press continuously to select the time Note: 1. Be sure to use a mild detergent if you want to clean the humidifier. 2. Don't fill water over the Max line at any time. 3. Don't switch on power when the tank is empty. 4. Clean regularly as per Maintenance instruction to avoid malfunction. 5. Per 100 Ml of water proposed to add 2-3 drops of essential oil. Maintenance instruction: 1. Add a small amount of warm kitchen detergent remover. 2. Clean with water. 3. Use the swab to wipe gently, and then use cleaning cloth to dry it lightly.