Note: The tubular suction cores should be moistened (soaked a little in the water tank) beforehand, otherwise it will take some time for the humidifier to start fogging. Please let the absorbent core soak completely before operating the switch. [Humidification and Air Purification] An ultrasonic humidifier that vibrates water slightly and releases it like mist, and because it is not a hot mist, there is no risk of burns. If the air is dry, there is a risk of catching a cold or flu. Maintaining sufficient humidity with a humidifier also helps prevent colds and flu. It is effective for a healthy and beautiful life. It eliminates dryness in hot and cold weather and moisturizes the skin. [Silent Humidification and USB Power Supply] Quiet humidifier, operating noise is 30dB or less, very quiet, keeps the humidity in the room and does not disturb comfortable sleep. Because it is USB powered, it can be powered by a computer or mobile battery, and can be used not only in the bedroom, but also