Wildfire smoke irritates pets’ airways the same way it irritates ours. On poor air quality days in Vancouver, keep dogs and cats indoors, shorten walks to washroom breaks, close windows, and skip hard exercise. Coughing, wheezing, laboured breathing, or unusual tiredness after smoke exposure deserves a prompt call to your veterinarian.
Most summers now bring at least a few hazy days to Vancouver, when smoke from fires in the Interior or south of the border drifts over the city and the mountains disappear from view. Dunbar residents check the Air Quality Health Index and adjust their plans, but pets depend entirely on us to do that thinking for them. A dog does not know why the afternoon walk was cancelled, and a cat with sensitive airways cannot tell you the air feels different. Here is how smoke affects dogs and cats, and how to get your household through fire season comfortably.
How Wildfire Smoke Affects Dogs and Cats
Wildfire smoke is a mix of gases and fine particles small enough to travel deep into the lungs. In pets, just as in people, those particles irritate the eyes, nose, throat, and airways, and with enough exposure they can inflame the lower respiratory tract. Healthy adult pets usually tolerate a short stint of moderate smoke with nothing worse than mild irritation, but the risk rises with the concentration of smoke, the length of exposure, and how hard the animal is breathing. That last point matters: a dog trotting after a ball is pulling far more air, and far more smoke, into its lungs than a dog snoozing on the couch. It is also worth remembering that indoor air is not automatically clean; with windows open, indoor smoke levels track outdoor ones surprisingly closely.
Which Pets Are Most at Risk
- Flat-faced breeds such as Bulldogs, Pugs, Boston Terriers, Persians, and Himalayans, whose airways are already working at a disadvantage
- Cats with asthma or a history of coughing episodes
- Dogs and cats with heart disease or chronic bronchitis
- Senior pets, whose lungs and hearts have less reserve
- Puppies and kittens, whose airways are still developing
- Overweight pets, who work harder to breathe even on clear days
If your pet is on this list, it is worth a conversation before fire season peaks. A summer check through our preventive care team can confirm how the heart and lungs sound and make a plan, including having any prescribed medication on hand before the sky turns orange.
Signs Your Pet Is Feeling the Smoke
Watch for coughing, gagging, or throat clearing, wheezy or noisy breathing, red or weepy eyes, discharge from the nose, faster breathing at rest, reluctance to play or eat, and unusual tiredness. In cats, add hiding more than usual and, above all, open-mouth breathing, which is never normal in a cat and warrants immediate veterinary attention. If symptoms are mild and improve once your pet is resting in cleaner indoor air, a call to the clinic for advice is a sensible first step. If breathing looks laboured, gums appear pale, grey, or bluish, or your pet seems distressed, treat it as urgent. Our urgent care team sees same-day appointments seven days a week.
A Smoke-Day Routine for Dunbar Dogs
On poor air quality days, trade the usual Pacific Spirit-length outing for short washroom breaks, ideally in the early morning when smoke often sits a little lighter, and let the Air Quality Health Index guide the day rather than the calendar. Skip fetch, daycare play sessions, and jogging companionship entirely until the air clears; exertion is what turns a smoky day into a respiratory problem. Burn the energy indoors instead: snuffle mats, food puzzles, hide-and-seek with treats, and short training refreshers tire a dog out more than owners expect. Our post on enrichment activities for dogs is full of ideas that work in a living room.
Cats and Smoky Air
Keep cats indoors on smoke days, including balcony supervisors and garden patrollers. Indoors, close windows, run air conditioning on recirculate if you have it, and consider a HEPA air purifier in the room where your pet sleeps, which meaningfully improves the air your cat actually breathes. Cats with asthma deserve extra vigilance, since smoke is a classic trigger for flare-ups; if your cat has ever been diagnosed with asthma, review our guide on recognizing and managing asthma attacks in pets and keep rescue medication within reach through fire season.
When Breathing Trouble Needs More Than Rest
A cough that persists after the skies clear, breathing that stays fast at rest, or an older pet that never quite bounces back deserves an exam rather than watchful waiting. Chest listening, and where indicated diagnostics such as chest X-rays, help the veterinarian tell smoke irritation apart from something that was quietly brewing underneath, like heart disease or chronic airway disease that the smoke merely unmasked. Ongoing coughs and breathing concerns are managed through our medical services team, and the earlier a pattern is investigated, the more options there usually are. And since smoky stretches in Vancouver often coincide with hot ones, our summer guide on heat safety for dogs and cats pairs naturally with this one.
Frequently Asked Questions
Can I walk my dog at all when it is smoky outside?
Yes, brief washroom breaks are fine for most healthy dogs even on poor air days. Keep outings short and calm, avoid exertion, and postpone real exercise until the Air Quality Health Index improves. Flat-faced, senior, and heart- or airway-compromised dogs should stay out only as long as strictly necessary.
Do air purifiers actually help pets?
Yes. A HEPA purifier sized for the room where your pet spends the most time reduces the fine particles that cause trouble, and running it in the sleeping area overnight is a simple, effective habit during fire season. Closing windows and running air conditioning on recirculate helps too.
My cat has asthma. What should I do before fire season?
Book a check before the smoky weeks arrive. Your veterinarian can confirm the current plan still fits, make sure you have medication on hand, and talk through what a flare-up looks like versus an emergency, so a hazy week in August is an inconvenience rather than a crisis.