Pet-safe is a phrase that gets thrown around in pest control marketing without much precision. The truth is that ultrasonic pest repellers interact differently with different species, and lumping every pet into one 'safe' category overlooks meaningful differences. If you have a household with mixed pets — a dog and a cat, or a parrot, or a guinea pig — it pays to know exactly how each species perceives our devices.
Here's a practical rundown by species, drawn from what we know about animal hearing physiology and what real customers report after running our 6-pack at home.
Dogs (20–45 kHz hearing range)
Dogs have a hearing range that extends from about 67 Hz to 45 kHz, which means they can perceive the lower portion of our ultrasonic output (we cycle from roughly 20 to 65 kHz). The upper end of our range is above what dogs hear; the middle and lower portions are within their auditory window.
In practice, the vast majority of dogs show no observable response to ultrasonic repellers. Dogs are excellent at filtering background noise — it's a survival adaptation for an animal that lives in chaotic, multi-sound environments. A continuous low-volume ultrasonic hum is, for most dogs, treated the same way a refrigerator hum is treated by us: noticed once, then completely ignored.
Some particularly noise-sensitive dogs — especially anxious breeds or dogs with prior trauma around sounds — may pause briefly when they first encounter a new repeller. This typically resolves within hours to a day. If your dog seems persistently uncomfortable, that's a signal to relocate the units away from their primary spaces.
Cats (up to 85 kHz hearing range)
Cats have the most extensive hearing range of any common household pet, perceiving frequencies up to roughly 85 kHz. This means our entire ultrasonic output (20–65 kHz) is technically within their auditory window — they can hear all of it.
But hearing and being bothered are different things. Cats evolved to filter ultrasonic information selectively, tuning in to meaningful prey signals (a mouse squeaking) and tuning out steady background noise. The continuous ultrasonic hum from a repeller falls into the 'background' category for most cats, and they ignore it entirely.
A small minority of cats — perhaps 1 in 50 based on customer reports — appear to be more sensitive and may seem mildly unsettled in the first few days. Patterns to watch: hiding in rooms away from units, reduced appetite, or unusual vocalization. If these persist beyond 2–3 days, relocate the units to spaces your cat doesn't occupy.
We have three cats and the 6-pack runs continuously throughout our home. They genuinely don't seem to notice. The mice, on the other hand, vacated the kitchen within three weeks. — Customer feedback, Cleveland OH
Birds (especially parrots and parakeets)
Birds are where the picture gets more nuanced and where we recommend caution. Most pet birds — parakeets, cockatiels, conures, parrots — have hearing ranges similar to or slightly above human range, generally peaking around 8–10 kHz with sensitivity extending to roughly 20 kHz. Most of our ultrasonic output is above their primary hearing range.
However, parrots in particular are highly intelligent, sensitive animals, and we recommend keeping ultrasonic repellers out of the immediate room where bird cages are kept. There's limited research on long-term effects on caged birds, and we'd rather err on the side of caution. Place units in rooms your bird doesn't occupy.
Small mammals (hamsters, rabbits, guinea pigs, ferrets, chinchillas)
This is the category to be most careful with. Small mammal pets share auditory physiology with their wild counterparts — and many of those wild counterparts are exactly what our devices are designed to repel. Hamsters, gerbils, mice, and rats kept as pets will be disturbed by ultrasonic devices in the same room. Don't run repellers near them, period.
Rabbits, guinea pigs, ferrets, and chinchillas are less directly studied but share enough auditory range with rodents that we recommend the same precaution. Keep these pets and your repellers in different rooms.
Why pets don't leave home like pests do
A common worry from new customers is 'if pests are bothered enough to leave my house, won't my pet eventually want to leave too?' This is a thoughtful question, and the answer comes down to stress response and attachment behavior, not just acoustic sensitivity.
Pests respond to ultrasonic stimulation by relocating because they're operating on a survival calculus: find a less-irritating environment that still has access to food and shelter. They have no emotional attachment to your kitchen — only resource-based attachment, which is easily redirected.
Pets, by contrast, have deep emotional and behavioral attachment to their home and their humans. Even if a particularly sensitive cat finds an ultrasonic device mildly annoying, that mild annoyance is dwarfed by their attachment to you, their food bowl, their favorite chair, and the territorial security of their home environment. The stress response that drives a mouse to leave doesn't translate to a cat or dog leaving — they may relocate to a different room within the home, but they don't leave the home itself.
When to discontinue
Run through this checklist if you're noticing changes in your pet that could be related to the repellers:
- Persistent behavioral changes — hiding, restlessness, vocalization, appetite loss — lasting more than 3 days.
- Any sign of ear-related discomfort: scratching at ears, head shaking, or visible distress when near a unit.
- Marked withdrawal from rooms where units are running, when previously the pet used those rooms freely.
- Any sign of physical illness that started after units were plugged in (rare but worth ruling out).
If any of these signs appear and persist, unplug the affected units and observe for 48 hours. If the pet returns to baseline, you've identified a sensitivity. You can then run units only in rooms your pet doesn't occupy, or return the product within our 30-day window. We'd rather you have a comfortable pet than a sale.