People who have used ultrasound cleaning machines know that the machine will make a more harsh sound when working. This sound is issued on the high-frequency work of the ultrasonic cleaning machine. So the people will have questions. In fact, this fear is unnecessary. Although any electronic equipment has more or less radiation, the ultrasonic cleaning machine is also the same. But it is not harmful to the human body. Ultrasonic is different from microwave oven.
An ultrasonic cleaning machine is using high-frequency ultrasonic waves to work on water molecules. The energy is also absorbed by water, so it cannot be harmful. The sound you hear is not ultrasonic when the machine is working. You can't hear ultrasonic sound. It is the sound of resonance of the tank and water. You may not be comfortable and accustomed when you just heard the sound, but this is just a psychological role. It is actually not harmful.