Remote control: The effective distance of the remote control is 2m, and the remote control is powered by one AAA battery (battery not included). All these functions can be performed by pressing the buttons on the box and the remote control. If you don’t use the remote control for a long time, take out the batteries. Ultra-quiet: This aromatherapy machine uses ultrasonic technology, which is very quiet when working. 2 Atomization mode: There are two levels of atomization, which can be changed by pressing the atomization button. The intensity of the spray can be adjusted to varying degrees. Strong and weak fog output for different occasions and preferences. The intensity of the steam can be easily controlled with two adjustable levels. The humidifier can hold up to 550 ml of water. Automatic shutdown: automatic shutdown due to lack of water, safe and reliable. It effectively kills bacteria and purifies the air.It is an indispensable tool for nursing staff at home and in the