Ultra Quiet and Very Safe: The air humidifier works with almost silent 23 dB thanks to ultrasonic technology. It will never affect your work or your life. The humidifier can automatically shut off when the tank runs out of water. To prevent accidents and prolong the life of the humidifier. Note: If you receive an oblique inner core, please don't worry that it is a wrong product, it can be used normally! Large Capacity and Digital Display: The humidifier of air can work for a long time with 500ml water capacity. The digital display can clearly show the remaining battery power. With a compatible USB cable adapter, the laptop power bank can be easily charged in time. Adjustable Spray: Our ultrasonic humidifier has two spray modes: single spray and double spray jet. With an adjustable mist output of up to 45ML/H, you can easily control the level of humidity for maximum comfort. Night Light Mode: Soft light helps eliminate fear of the dark and does not harm the eyes. For parents with newborns, the light makes nighttime changes and feeding easier without having to turn on a real light to see. Buy with Confidence: The material of our humidifier is ABS and high quality silicone, BPA free. You don't have to tolerate dry air all day.