The upper circuit humidifier separates the circuit from the water tank and makes cleaning easier than ever. The ultrasonic atomization tube converts the water into a superfine mist, and then releases it into the room through the mist nozzle. The upper cover can be opened to easily add water. When the water level is too low, it will automatically shut down. The atomization film intelligently prevents dry burning. It is easy to operate and has 4 major functions such as adjusting the output of mist, lighting, timer, and sleep mode. The nozzle can be rotated 360 degrees, the spray angle is 70 degrees, and the height is 70mm to prevent the formation of water droplets.