Note: Tubular Absorbent Cores must be pre-moistened (soaked a little in the water tank), otherwise it will take some time for the humidifier to begin to mist. Please let the absorbent core soak completely before turning on the switch. [Humidification and Air Purification] An ultrasonic humidifier that gently vibrates the water and emits it as a mist, and as it is not a hot mist, there is no risk of burns. If the air is dry, you risk catching a cold or the flu. Maintaining adequate humidity with a humidifier also helps prevent colds and flu. It is effective for a healthy and beautiful life. It removes dryness in heat and cooling and moisturizes the skin. [Quiet humidification and USB power supply] Quiet humidifier, operating sound is 30dB or less, very quiet, keeps the humidity in the room and does not disturb a comfortable sleep. As it is USB powered, it can be powered by computer or mobile battery, it can be used not only in bedroom but also in car or office. It only consumes 2W and