Ultrasonic Pest Repeller Side Effects on Humans: Is it Safe for Adults, Infants, and Pets?

There is nothing worse than a pest problem. Getting an ultrasonic paste repeller is a standard solution, but are these devices safe? Are there any ultrasonic pest repeller side effects on humans?

Ultrasonic Pest Repeller Side Effects on Humans

Before we go into further detail, it is essential to note that these devices are tested and completely safe for your health. If you hate chemical control & your choice is an ultrasonic device, it is good to be aware of ultrasonic pest repeller side effects, advantages, disadvantages, and potential harms. But, there is more to learn than that, so you have to finish the whole article to study this subject.

How Do Ultrasonic Pest Repellents Work?

Ultrasonic paste repellers are electronic devices that emit high-frequency sounds designed to repel, injure or kill domestic insects such as rats and insects. Testing labs and the US FTC (Federal Trade Commission) have differed on whether they can do so. These gadgets got made to emit sounds that only rats can hear, and the sound is supposed to disturb them until they leave the area.


Ideally, humans may not hear this sound, but as we all know, things are never perfect. But unfortunately, there are ultrasonic pest repeller side effects on humans too. Moreover, Below is a table showing the range of sound waves (in Hz) that different animals can hear:

The range of animal sound waves is:

RABBITS360 – 42,000
GUINEA PIGS54-50,000

As you can see above, many animals have a hearing limit that is much higher than humans.

Based on this information, manufacturers of ultrasonic paste repellents claim that they can emit sound waves that will irritate and disturb mice and insects, but not humans. It will not harm humans or pets in any way but will cause them to move elsewhere and build a nest. So there is hardly any ultrasonic pest repeller side effects on humans

How to Use An Ultrasonic Pest Repeller?

After buying an ultrasonic pest repeller, the first problem is “How To Use Ultrasonic Pest Repeller”. Also, for your ease, we have written a complete guide about the usage of ultrasonic pest repellers.

First of all, Unpack your ultrasonic pest repeller and Plug it into your wall socket 10″— 50″ inches above the floor. 

  • Lower-to-the-floor wall sockets are best for crawling pests. 
  • Higher wall sockets for flying pests. 
  • Kitchen wall sockets above the counter are best for ants. 

What areas of the house should get avoided?

  • Ultrasonic sound waves cannot penetrate walls. 
  • Just as these ultrasound waves do not go through walls, they do not do well behind curtains or next to or between large solid furniture. 
  • Ultrasonic sound waves cannot penetrate Lazy Boy Chairs that go all the way down to the floor, so do not plug into wall sockets between two Lazy Boy Chairs with a table and lamp between them, as the only space the ultrasonic sound waves will work is between the chairs and directly under the table. Not very effective. 
  • Ultrasonic sound waves cannot penetrate bookshelves jammed solid with books and other large solid objects. 
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What is the coverage of a single ultrasonic pest repeller?

Each Ultrasonic Pest Repeller covers approximately 1,075 to 1,600 sq.ft. That is the equivalent of a 350’— 500′ foot room. Also, larger rooms/spaces will require more ultrasonic pest repellers installed.

How long does ultrasonic pest repeller takes to repel pests?

Although you may see results of the device in a few days, we recommend giving the repellent 2 to 3 weeks for the best product results. However, General results may vary depending on the insect, the type of insect, and the size of the room.

How do I know my ultrasonic pest repeller is working?

The indicator light (red, green or blue) on the front of the unit will blink off to let you know that unit is working. On average, an ultrasonic paste repeller lasts three to five years. Also, You know that if the LED light on the device is on, it works. You can buy six packs of these devices for less than $ 30

Ultrasonic Pest Repellers Side Effects:

One of the main reasons many people decide to stay away from repellers is that they think they are dangerous and there should be some ultrasonic pest repellers side effects. There is no real health risk from having this type of device in your home, but you should always be aware of the symptoms associated with the presence of ultrasonic waves.


We have decided to list some of the rarest but possible side effects that a person can experience.

Ultrasonic Pest Repellers Side Effects on Humans


Although the sound waves emitted by these devices are beyond human hearing. But those who are already sensitive to sounds may experience some discomfort. Also, less aged people are more likely to hear more frequently than older people. Children can sometimes mention that they can listen to sounds that no one else in the room can hear.

Ultrasonic pest repeller side effects on humans may include:

Ultrasonic pest repeller side effects on humans may include
  • Ringing In The Ears
  • Dizziness
  • Nausea
  • Headache
  • Migraine
  • Insomnia
  • Vomiting
  • Fainting

If you ever experience these symptoms, you should contact your doctor. The chances are that these can be ultrasonic pest repeller side effects or not, and you need to see if there is another underlying health problem.

The thing about ultrasonic repealers is that they have to go through a very detailed testing process before being released for sale. Also, No device would be available if it did not undergo strict security tests. Moreover, It would be best to choose a well-known brand that does not sell counterfeit, dangerous products.

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Ultrasonic Pest Repellers Side Effects on Pets

Cats and dogs can hear high-frequency waves, but they are not affected in most cases. If your pet barks at the device, run towards it, or screams, you should take it to a room where the pet cannot reach. If this behaviour continues, it may be due to a particularly nervous or hearing sensitivity. Signs indicate that the pet is in distress, so you should probably remove the repeller from home.


Small pets such as hamsters and rabbits can hear these sounds and are often disturbed. You should keep these devices at a safe distance from pets. You can still have a pest repeller in the house and keep a hamster, as long as there is a certain distance. Also, remember to read the instructions for the animal protection device.

Some of the signs of discomfort they observed with their pets include:

  • Whining
  • Teeth chattering
  • Pacing a lot
  • Extra jumpy
  • Backing away
  • Staying close to their caretaker
  • Crying


The most worse ultrasonic pest repeller side effect is Habituation. It is a situation when a person or animal becomes accustomed to a sound or repeated stimuli. We mention habitat because there are claims that insects know that the noise emitted from these devices does not harm them. Once they do, they stop being frightened and start attacking the house again.


This claim has not been well researched, and many families report consistent success with the use of ultrasonic repealers.

Ultrasonic Pest Repellers Side Effects on Children:

A child can hear more frequent sounds than an adult. It is because the range of sounds we can listen to decreases with age. Although ultrasonic waves will not cause any physical harm, there are some significant ultrasonic side effects on infants and children.

Although these effects may be mild and temporary, you should decide for yourself whether they are more than the positive effects of the device.


Prolonged ultrasonic side effects on infants and children can be harmful to children and infants. According to a study by the National Institutes of Health (NIH), the overall effects on children of this type of repeller may include:

  • Tinnitus (or ringing in the ears)
  • Fatigue
  • Headache
  • Imbalance
  • Dizziness
  • Sleep Disturbances
  • To Pass Out
  • Nausea
  • Chronic Migraine
  • Vomit

Things to Remember Before Buying an Ultrasonic Pest Repeller:

Before buying an excellent and safe pests repeller, it is essential to check the following elements:

Things to Remember Before Buying an Ultrasonic Pest Repeller
  1. Producer Name
  2. Model quality
  3. Ability to power
  4. Vibration coverage
  5. Date of production
  6. User reviews

The safest insect repellents, which will not cause any side effects, are distinguished by the excellent reputation of the producer. They have undergone numerous tests and are made of the highest quality materials.

FAQs Regarding Ultrasonic Pest Repeller:

Is the ultrasonic pest repeller safe to use?

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According to the above study, there is no risk to adults from ultrasonic insect repellents. In general, ultrasonics are safe for insect repellents.

Although this study found a trace level of problems with ringing in the ears and difficulty concentrating, there is no evidence that it is worse than the sounds we can feel. It logically follows that such devices are more secure than chemical pest control and humane than many traps or gloves.

However, it is keen to note that the study described above was not performed on children or domestic pets such as dogs and cats, all of whom are more hearing-impaired than adults.

Can ultrasonic pest repellers hurt humans?

Repellents using ultrasonic technology are safe and do not harm human health. Some people report side effects such as headache, dizziness, fatigue and vomiting, but these are usually sensitive hearing as they can hear frequencies that normal humans cannot hear.

Do ultrasonic pest repellers interfere with Wi-Fi?

While electric paste repealers do not affect Wi-Fi, they have been reported to interfere with the quality of telephones and the reception of both landlines and cell phones. In addition to home security systems, there have been reports of interference and obstruction in hearing aids.

Do ultrasonic pest repellers work through walls?

Ultrasonic waves cannot penetrate furniture, cupboards or walls. You should have accommodated ample space around the area where it is plugged in. Multiple rooms require multiple units.

Do electronic pest repellers work on roach?

Ultrasonic pest control devices emit high-frequency sounds beyond the limits of human hearing. Cockroaches, by the way, detect these sounds through special hair. But while ultrasonic devices disturb those coming out of cricket, they have a slightly rebellious effect on roach (or ants, spiders, mosquitoes and rats).

Why can I hear ultrasonic pest repeller sound?

Ultrasonic sound waves products have a higher frequency than the human ear can hear, but the invading races can detect them. The purpose of the sound is to disturb disturbing critics and prevent them from building houses near the source of the noise.

How long does ultrasonic pest repeller takes to repel pests?

Although you may see results of the device in a few days, we recommend giving the repellent 2 to 3 weeks for the best product results. General results may vary depending on the insect, the type of insect, and the size of the room.

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