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All the Information You Want About Pest Repellents is Here

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How Pest Repellents Work

Yehudah Posnick

Do you have problems with mosquitoes, flies or other insects inside your home? An pest repellents may offer a solution. These devices emit high-frequency sound waves that humans can't hear but that bugs find intolerable, driving them away.

1. How pest repellents work?
Ultrasonic sound waves are above the range of human hearing, but well within the hearing range of many common household pests, including cockroaches, ants, mice and spiders. These sound waves are so high in frequency that they cause the insects' nervous systems to malfunction, ultimately killing them.

However, before you run out and buy an pest repellents, it's important to understand how they work and whether or not they're actually effective.

2. How They Work

Pest repellents work by emitting sound waves at a frequency of about 20,000 to 50,000 hertz (Hz). These sound waves are above the range of human hearing but well within the hearing range of many common household pests, including cockroaches, ants, mice and spiders.

The sound waves cause the insects' nervous systems to malfunction, ultimately killing them.

3. Are They Effective?

There is some scientific evidence to suggest that ultrasonic sound waves can be effective at repelling certain pests, but there is also evidence that suggests they are not effective at repelling others. 

For example, a 2012 study found that ultrasonic sound waves were effective at repelling cockroaches, while a 2013 study found that they were not effective at repelling mosquitoes.

It's also important to note that ultrasonic sound waves only affect pests that are within a certain range of the device. So, if you have a large infestation of cockroaches, for example, you may need to purchase multiple devices to place around your home in order to achieve desired results.

4. Drawbacks

One potential drawback of pest repellents is that they can also repel other small animals, including bats, rodents and lizards. So, if you have pets, you may want to avoid using these devices. 

Another potential drawback is that some people find the high-pitched sound emitted by these devices to be annoying. If this is the case, you may want to try a different type of pest control device, such as an electric fly swatter.

If you decide to use an pest repellents, be sure to purchase one that is specifically designed to repel the type of pests you have in your home.

Do your research and read reviews before making a purchase, and always follow the manufacturer's instructions for use.