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Can Humans Hear Ultrasonic Pest Repellers?

Although humans may sometimes fail to notice ultrasonic noise, the sound produced by these devices have high frequency waves above their hearing capacity. 

March 8, 2022

7 min read time

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Can Humans Hear Ultrasonic Pest Repellers?


There is a lot of puff and hype around ultrasonic pest control, not forgetting marketing efforts.

Ultrasonic pest repellers have recently gotten much publicity because they are much easier and safer to control pest populations in many homes.

But the underlying question is when you install it in your house, can you hear ultrasonic sounds?

Although humans may sometimes fail to notice ultrasonic noise, the sound produced by these devices have high frequency waves above their hearing capacity.

To establish a firm argument on the functionality of these devices, it is important to highlight the major points in a concisely,


Results from studies conducted show that the public is currently disclosed in their houses with no authorization to use ultrasonic devices.

These recommendations come almost five decades after thorough research, only to be considered null and void, the reason being that, the research’s outcome was built upon incorrect proof.

Later, this evidence was outweighed after different organizations from many countries took on newer guidelines. Therefore, presuppositions that underpin both physical measurements and audiology at frequency higher ought to be.

There are also additional essential question on the functionality of the ultrasonic that ought to be established, for example;

How do ultrasonic pest repellents work?

Ultrasonic pest repellent devices use effective technology that employs waves of exceedingly high frequencies above the range of human hearing.

In hypothesis, the shaking of this electronic pest repeller brings about an emotional reaction that in turn affects insect pests in your house.

ultrasonic pest repeller with strobe light

The result?

Since the pests cannot take the high-frequency sound emitting from an ultrasonic repeller, they have to flee for “safety” or rather areas with no pest repellents.

Ultrasonic pest repellents are built in such a way that they can plug into wall outlets. The advantage of wall plugging is that it prevents any electrocution when in use.

Ultrasonic pest control devices also have a battery set substitute to choose from; it is designed for those who prefer to keep mosquitoes while spending quality time outside.

If you have small children or pets, or rather have concerns about your chemical disclosure, then it denotes that your chances of getting an ultrasonic pest repeller are high.

Whether you intend to keep away insects, wild games, bed bugs, or rodents, the device is there for you.

ultrasonic pest repeller with strobe light

Do pest repellers really work?

These devices are not controlled by the EPA; numerous individuals are skeptical of their claims.

Entomology researchers assert that there is no single scientific evidence whatsoever that ultrasound can repel mosquitoes. The aftermath of studies of these devices are all over showing some pests are responding, at the same time, others, not so much.

Does that mean that ultrasonic rodent control is a hoax?

Well, hold on, let’s get to it.

The truth about ultrasonic pest repellers

Many unsuspecting consumers have especially, been fooled by the plenty of 5-star reviews on online retailers sites.

Usually, the sounds produced and signals by the device are virtually weakened by almost everything in your house; carpet, cushions and furniture. They customarily reduce the signs to a minimum, hence a low chance to repel rodents and other pesky critters.

The working of ultrasonic pest repeller may take a longer time to prove its working, but even though the testing continues.

Is ultrasonic pest control safe?

Fortunately, to humans, it does not cause hearing problem to the human ear thus it is a safe device since it does not use harmful or toxic chemicals.

Other than chemical control, the ultrasonic repellers use ultrasonic sound waves that have severe adverse effect to curb pest problem in your entire house.

Because of the absence of any harmful chemicals, you can freely use them around your kids and any household pets, making it an excellent device to use around your home.

ultrasonic pest repeller with strobe light

What about hearing damage? Can it cause hearing loss?

Naturally, humans can typically detect sound frequencies that go all the way up to 20 kHz.

Besides, there is still no evidence that the device has caused hearing damage to the human ear or injury of any kind.

Are ultrasonic sounds safe for humans?

The sound produced by ultrasonic at adequate pressure level normally extremely irritates rodents. And when it comes to humans with hearing sensitivity, they can easily cause damage, mainly if it is not audible enough.

In whatever way, even such devices designed for human safety may be a nuisance and cause harm to your pets and other animals, mostly because of their high-frequency sounds.

Such ultrasonic waves in these devices are because they emit airborne ultrasounds.

Are electric pest repellers safe?

These devices are indeed safe for humans; however, there is no evidence that they function to all intents and purposes.

Recently, ultrasonic pest repellers advertised as cautious environmentally friendly, more so when kicking pests out of your home.

Common pest control myths you may need to know.

Unfortunately, many people come across online and believe in them. That is very shocking and inappropriate.

A sample of these myths are;

  • The official residence for bed bugs is in dirty beds.
  • The absence of pests in your house for some time means that you do not have pest problems in your home.
  • Cheese is the traditional food attracting mice and other pests.
  • Allow your cat to do the job to keep your property free from insects and any invading species.
  • The most excellent way of controlling pests is by using ultrasonic repellents.

How loud are ultrasonic pest repellers?

An ultrasonic pest repellent device uses an effective technology and is known to emit sounds at a high frequency, and may have adverse effects causing hearing damage and may even lead to hearing loss.

Some rodents and pests can hear frequencies that are below 100kHz. You ought to, therefore, keep in mind when purchasing the device. Though it is a pest control method, the frequency should at least be higher than your pet can hear.

Animals and other pesky critters by nature hear high-frequency sound waves in the much higher range and are considered best in chasing small insects and pests.

On average, an ultrasonic device emits a sound of almost 65,000kHz, which has adverse effects on extremely pesky rodents and other pests alike.

Because of the high-frequency sound, several manufacturers claim that it is a good pest repeller for your entire house.

pest control banner

Safety and side effects of ultrasonic pest repellents

Ultrasonic rodent repellents that use ultrasonic technology are safe and have no adverse effects on your health.

There is no substantial risk associated with plugging the device in your home. You can, however, confirm wave propagation with your radio signal to prevent any interference.

In other cases, study shows that occupational exposure to ultrasonic noise may end up causing some signs.

Symptoms of ultrasonic pest repeller

  • Vomiting and nausea
  • Sleep disturbances and fatigue
  • Ringing in the ears, or tinnitus
  • Fainting and dizziness
  • Chronic migraines and headache

Cons of using ultrasonic bug repellers

When buying ultrasonic devices, you may want to familiarize yourself with the cons and pros. Unluckily the pros of using ultrasonic bug repellers are more significant than the cons,

The common pros are;

  • They are generally safe for both pets and human.
  • They can handle numerous different pests, depending on the product you purchase.
  • They are not costly; besides, they consume less power.
  • You will have a one-time investment apart from electric bills and maintenance in many cases.

Bottom line

With or without a sensitive hearing, human ears can detect frequencies that go all the way up to 20kHz with no damage to the ear whatsoever, unless the ultrasonic sound waves have a high-frequency range. then this may cause severe adverse effects. I hope this guide will help you in answering if can humans hear ultrasonic pest repellers.

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