An air humidifier with 4 humidity control functions. Also intelligent LED digital display, night vision design, real-time display of temperature, humidity and working status at any time. With the touch of a button, we can automatically humidify the house and keep the humidity within the standard range. We can also manually adjust to our desired range from 40 to 90 percent. 36 decibels provide a low noise level and a comfortable environment. It also automatically shuts off the power when emptying the tank, so we can leave it alone overnight.