What noise is there when the humidifier is running?

This is because the water flow is not smooth when the machine is running, resulting in underwater sound.

Solution: tidy up the internal wet film to keep the machine water flowing smoothly.

1. Turn off the power supply and open the running water port, as shown in the figure, and pick up the machine cover.

2. Observation: The source of underwater sound is caused by overflow here.

3. Observation: Too tight installation of wet film leads to poor water flow at the point.

4. Gently pull down the wet film at all corresponding points. (Don't pull the wet film out of the tank) When the water flow at the dot is clear, the sound of water disappears.