Are Ultrasounds Harmful to Humans? Does it affect livestock and pets?

Are Ultrasounds Harmful to Humans? Does it affect livestock and pets?

The hearing range of the human ear is about 16-20000Hz. The output frequency of the ultrasonic mouse repeller is generally above 20000Hz. The human auditory system cannot respond to the frequency above 20000Hz, so our ears cannot hear it at all, and the power of the ultrasonic mouse repellent has not reached the ability to penetrate the human body, so it has no effect on the human body. For cats, dogs and other pets, as long as the output frequency of the mouse or insect repeller is not set in the sensitive area of the cat and dog, it will not cause any impact. (Reference: The Nature of Sound)

How to use insect repellent correctly?

Place the repellent in a pest-infested area, but repeller's ultrasonic output do not face window or doorway directly.

Does it still need to continue to use it when no longer see pests such as mice and cockroaches after getting good results?

Yes, continuous use is necessary to prevent new pests such as mice and cockroaches from entering the control area and building nests to multiply. If it cannot be used continuously, it will directly affect the use effect of the product.

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