Can the ultrasonic sound produced by ultrasonic cleaners damage my hearing

Can the ultrasonic sound produced by ultrasonic cleaners damage my hearing

The frequencies of the ultrasonic sound waves used by ultrasonic cleaners to clean objects are very high, above 20 kHz. That is beyond the level of frequency that human ears can detect. Therefore, even though ultrasonic frequencies are very high, they cannot damage our ears. What you should be concerned about are the undertone frequencies. These sound frequencies, which are below the ultrasonic frequencies, are detectable by the human ear. The vibrations of ultrasonic cleaner parts such as the tank and cover produce undertone frequencies. Other ultrasonic cleaner parts like blowers and pumps also produce sound. Constant and long exposure to all these sounds can damage human ears.

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