Pest Repeller

Pet Safety

Are Ultrasonic Pest Repellers Safe for Pets? A Vet-Informed Answer

By The Pest Repeller LLC Team · March 25, 2026 · 6 min read

Family with dog in living room — pest repeller in the background

It's the most common question we get: 'Will an ultrasonic pest repeller hurt my dog or cat?' The short answer is no — but the longer answer requires unpacking what 'ultrasonic' actually means for different animals.

Hearing ranges, plain and simple

Humans hear roughly 20 Hz to 20 kHz. Above that, we're deaf. But many animals hear much higher:

  • Dogs: 67 Hz – 45 kHz
  • Cats: 48 Hz – 85 kHz
  • Mice: 1 kHz – 90 kHz (with peak sensitivity around 16 kHz)
  • Rats: 500 Hz – 80 kHz (peak sensitivity around 8 kHz)
  • Cockroaches: ~5 kHz – 75 kHz (chemoreceptors play a bigger role than hearing)

So yes — your dog or cat can technically hear the upper end of the ultrasonic range a repeller produces. The question is whether that hearing translates to discomfort, and the answer (per most veterinary literature) is no.

Why pests respond but pets don't

Ultrasonic pest repellers don't just emit sound — they emit specific wave patterns and intensities tuned to disturb the nervous-system response of insects and small rodents. Dogs and cats have evolved to filter and process high-frequency information very differently. A dog hearing a 30 kHz tone perceives it more like a faint whistle in the background than a continuous neurological irritation.

There's also the question of intensity. Pest repellers operate at low decibel levels — typically 50–70 dB — well below thresholds that cause hearing fatigue or stress in larger mammals.

What veterinarians say

Multiple veterinary publications, including outlets from the AVMA and several academic veterinary schools, have addressed ultrasonic devices. The consensus: they pose no documented health risk to dogs, cats, or birds. Some sensitive dogs may pause briefly when first hearing a new ultrasonic source — usually for a few minutes, then they ignore it.

Pets you should be cautious with

There is one category of pet to be careful with: small rodent companions. Hamsters, gerbils, mice, and rats kept as pets share the same hearing physiology as their wild counterparts. An ultrasonic repeller will absolutely disturb them. Keep the device in a different room — never in the same space as a rodent enclosure.

Other small mammals to be cautious about: rabbits, ferrets, chinchillas. There's less research on these species, so as a precaution we recommend keeping the repeller out of their immediate room.

Bottom line

If you have a dog, cat, bird, or fish, you can plug in our 6-pack with no concern. If you have small rodent or other prey-species pets, place the repellers in rooms they don't occupy.

Want to try a chemical-free pest control approach yourself? Our 6-pack ultrasonic repeller ships free in the US with a 30-day money-back guarantee.