How Long Can a Cat Hold Its Breath? Facts and Risks
By Dr. Zubair Khalid, DVM, MS, PhD ·
Most healthy cats can hold their breath for only a short time, often just seconds to about a minute, and they rarely do it on purpose. When a cat holds its breath, it is usually a reflex tied to pain, stress, or a medical problem, not a skill. If your cat is breathing through an open mouth or struggling for air, treat it as an emergency.
This article is educational and is not a substitute for veterinary diagnosis or treatment.
Quick Answer
- A normal cat breathes quietly through the nose, and holding the breath for long periods is not a normal feline habit.
- Most cats can only hold their breath for seconds to roughly a minute before the reflex to breathe takes over.
- Cats do not hold their breath underwater on purpose, and any cat in water is at risk of drowning quickly.
- Open-mouth breathing in a cat is almost always abnormal and often means an emergency.
- If your cat is gasping, panting with the mouth open, or breathing with the belly, call a veterinarian right away.
What Normal Cat Breathing Looks Like
A healthy cat at rest breathes through the nose with the mouth closed. You may barely see the chest move. Normal resting breathing in cats is usually quiet and steady, and the rate is typically somewhere in the range of 16 to 40 breaths per minute, though this varies with sleep, play, and temperature. Your veterinarian can tell you what is normal for your individual cat.
Cats also have a reflex that protects the airway. When breathing stops, the opening to the windpipe (the glottis) can close off, which keeps air from moving in or out. In newborn rabbits, hypoxia (low oxygen) caused the glottis to stay closed for a much larger share of the time compared with normal oxygen levels [1]. This reflex exists to protect the lungs, but it also means that breath holding and low oxygen can feed each other in a dangerous loop.
So when people ask how long can a cat hold its breath, the honest answer is that this is not a normal or useful feline behavior. A cat that appears to be holding its breath is usually showing you a sign of a problem.
How Long Can a Cat Hold Its Breath?
There is no well established number in veterinary research for how long a healthy cat can voluntarily hold its breath. Cats do not train for breath holding the way some human athletes do. In practice, most cats will take a breath within seconds to about a minute, because the drive to breathe is strong.
What matters more than a stopwatch is why the cat stopped breathing. A brief pause during sleep or a startle can be harmless. A pause that comes with blue gums, a stretched-out neck, or a cat that will not move is not harmless.
How Long Can a Cat Hold Its Breath Underwater?
Cats should never be expected to hold their breath underwater. Cats are not built for swimming, and a cat that falls into a pool, tub, or pond can inhale water within seconds. There is no safe breath-holding window for a cat in water. If your cat goes under, get it out immediately, dry it, keep it warm, and call a veterinarian or an emergency clinic even if it seems fine at first. Water in the lungs can cause problems that show up hours later.
How Long Can a Cat Mouth Breathe?
A cat should not breathe through its mouth at rest. Open-mouth breathing in cats is different from panting in dogs, which can be normal after exercise or heat. In cats, mouth breathing is a warning sign. It can happen briefly after intense play or in a hot car, but it should stop quickly once the cat cools down and rests.
If your cat is mouth breathing at rest, while sleeping, or for more than a minute or two, that is a reason to seek veterinary care. This is especially true if the breathing looks labored, the sides of the chest pull in, or the cat's gums look pale or blue.
Main Causes of Breath Holding and Abnormal Breathing
| Cause | Typical clues | How urgent |
|---|---|---|
| Pain or stress | Sudden pause, tense body, hiding, reacting to a procedure or handling | Same-day call if it continues |
| Upper airway blockage | Noisy breathing, gagging, pawing at the mouth, open-mouth breathing | Emergency now |
| Asthma or lower airway disease | Coughing, wheezing, fast breathing, crouched posture | Same-day to emergency |
| Heart disease | Fast or labored breathing, weakness, fainting, fluid buildup | Emergency now |
| Fluid around the lungs or in the chest | Fast shallow breathing, reluctance to lie down, open-mouth breathing | Emergency now |
| Chest wall deformity | Visible dip in the chest, breathing effort, poor growth in a kitten | Routine to urgent, based on severity |
| Anesthesia or sedation | Slow or paused breathing during and after a procedure | Handled by the veterinary team |
| Low oxygen from any cause | Blue gums, collapse, confusion, gasping | Emergency now |
Some kittens are born with a chest wall deformity called pectus excavatum, where the breastbone dips inward. In a small case series, six kittens with moderate to severe pectus excavatum had mild to moderate breathing signs at home and were treated with surgery to place an external splint [2]. This shows that structural problems in the chest can affect breathing, though this is uncommon.
Anesthesia is another setting where breathing can slow or pause. In a review of 167 cats receiving radiation therapy under general anesthesia, mild anesthesia-related complications occurred in 72 cats (43%), and mild complications not related to anesthesia occurred in 30 cats (18%) [3]. Pre-existing hypertensive chronic kidney disease and the use of blood pressure-supporting drugs were linked to mild anesthesia complications [3]. If your cat is scheduled for a procedure, tell the veterinarian about any kidney disease, heart disease, or breathing problems ahead of time.
Low oxygen is a serious concern in cats with chronic kidney disease as well. In a study of kidney tissue from cats, genes related to oxygen response changed as kidney disease got worse, with some markers increasing and others decreasing across stages [4]. This does not mean every cat with kidney disease will have breathing trouble, but it does mean the body's oxygen handling can be affected by chronic illness. If your cat has kidney disease and starts breathing oddly, that is a reason to call your veterinarian.
Red Flags That Mean Emergency
Call an emergency veterinary clinic right away if you see any of these:
- Open-mouth breathing at rest, or breathing that does not settle within a minute or two
- Gums that look blue, gray, or white instead of pink
- Gasping, choking, or a cat that cannot get air in
- A stretched-out neck, elbows out, or belly muscles working hard to breathe
- Collapse, weakness, or a cat that will not stand
- Breathing that gets worse when lying flat
- A cat that went underwater, even briefly
- A cat that was sedated and is now breathing very slowly or not at all
Do not wait to see if it improves. Breathing emergencies in cats can go from bad to worse in minutes.
What You Can Do at Home While You Wait
Stay calm and keep your cat calm. Stress makes breathing harder. Move your cat to a quiet, cool room with good airflow. Do not chase or restrain your cat if it is panicking.
Do not put your cat in water or try to make it swim. Do not give any medication, including human drugs, without veterinary direction. Some common human medicines are toxic to cats, and the dose for a cat is calculated by your veterinarian based on weight and health.
If your cat is open-mouth breathing, keep the carrier open or use a soft carrier so air moves freely. Offer a familiar blanket. If your cat is unconscious or not breathing, start CPR only if you have been trained, and have someone call the clinic while you do it.
If your cat has a known heart or breathing condition, check the resting breathing rate at home when your cat is asleep or calm. Counting breaths for 15 seconds and multiplying by four gives you a rate per minute. Write it down so you can tell your veterinarian what is normal for your cat.
For related concerns, see Cat Breathing Fast While Sleeping: When to Worry and Cat Breathing Fast: Emergency or Normal?.
What Your Veterinarian Will Check
Your veterinarian will start with the basics. They will watch your cat breathe from across the room before touching it, because handling can change the pattern. They will listen to the heart and lungs with a stethoscope, check the gums and tongue color, and feel the pulse.
Next, they may check oxygen levels with a small clip on the paw or ear, and they may take an X-ray of the chest. X-rays can show fluid, an enlarged heart, asthma changes, or a chest wall deformity like the one described in kittens [2]. Blood work can look at organ function, including the kidneys, since kidney disease can affect oxygen handling over time [4].
If your cat needs a procedure, the team will monitor breathing closely. In cats under anesthesia, mild complications are common, and pre-existing kidney disease and certain blood pressure drugs were linked to mild anesthesia-related problems in one review [3]. Your veterinarian will use this information to plan the safest approach for your cat.
If your cat has a breathing pause during sleep or a suspected seizure, your veterinarian may ask you to record a video at home. Video is often more useful than a description.
Prevention and Monitoring
You cannot teach a cat to hold its breath, and you should not try. Instead, focus on keeping the airway clear and the environment safe.
Keep small objects, strings, and plastic bags out of reach. Cats can choke on these, and choking can look like breath holding. Keep windows screened and keep cats away from pools, tubs, and open water. If you have a pool, use a safety cover and never leave a cat unsupervised near water.
Watch for changes in breathing at rest. A cat that starts breathing faster or harder while sleeping is telling you something. If your cat has asthma, heart disease, or kidney disease, keep regular checkups. Cats with chronic kidney disease can have changes in how the body handles oxygen over time [4], so breathing changes are worth mentioning at every visit.
If your cat has a known chest deformity or had surgery for one, follow your veterinarian's monitoring plan. In the kitten case series, surgery reduced the chest dip and improved the shape of the chest on X-rays [2]. Your veterinarian will set the follow-up schedule for your cat.
For more on related health signs, see Why Does My Cat's Breath Smell? and How Long Can A Cat Safely Go Without Urinating.
Limitations and When to Contact a Veterinarian
There is no single number for how long a cat can hold its breath, because this is not a normal behavior and research on it in cats is limited. What we do know is that low oxygen can trigger reflexes that close the airway and make breathing problems worse [1]. In preterm rabbits, giving stimulation at the first sign of irregular breathing reduced apnea and improved breathing compared with waiting until breathing stopped [5]. The lesson for cat owners is simple. Act early when breathing looks wrong.
Call your veterinarian the same day if your cat has a new cough, a mild increase in resting breathing rate, or a brief episode of open-mouth breathing that resolved. Go to an emergency clinic now if your cat is open-mouth breathing at rest, has blue or pale gums, is gasping, or has collapsed. Schedule a routine visit if you have noticed a slow trend of faster breathing over days or weeks.
Every cat is different. Your veterinarian needs to examine your cat to know what is happening.
Frequently Asked Questions
Can a cat hold its breath on purpose?
No, cats do not hold their breath on purpose the way a person might. A pause in breathing is usually a reflex or a sign of a medical problem. If you see repeated pauses, call your veterinarian.
Is it normal for a cat to breathe through its mouth?
No, mouth breathing at rest is not normal in cats. Brief panting after hard play or heat can happen, but it should stop quickly. Open-mouth breathing that continues is a reason to seek care.
What should I do if my cat stops breathing?
Get your cat to an emergency clinic immediately. If you are trained in CPR, start it while someone else calls the clinic. Do not wait to see if breathing returns on its own.
Can my cat hold its breath during sleep?
Brief pauses can happen during sleep, but long or repeated pauses are not normal. If you notice your cat's breathing stopping and starting while asleep, record a video and call your veterinarian.
Does holding the breath hurt a cat?
A short pause is unlikely to cause harm, but repeated pauses or pauses with low oxygen can be dangerous. Low oxygen can trigger airway closure and make breathing harder [1]. Treat any breathing pause that comes with distress as urgent.
Related Articles
- How Long Can A Cat Safely Go Without Urinating
- Cat Breathing Fast While Sleeping: When to Worry
- Why Does My Cat's Breath Smell?
- Cat Breathing Fast: Emergency or Normal?
- How Long Can A Cat Live Without Peeing
- How Long Can A Cat Go Without Peeing Before It Is Dangerous
- How Do Cats Breathe? Normal Rates and Warning Signs
- Cat Breathing Fast While Purring: Normal or Not?
- How Long Can a Cat Stay in a Crate? Safety Tips
- Cat Respiratory Infections: Etiology, Clinical Signs, Zoonotic Potential, and Management
- Bacterial Respiratory Infections in Cats: Etiology, Clinical Signs, and Treatment
References
- Hypoxia inhibits breathing and causes the glottis to close in preterm rabbit kittens at birth. Pediatric research, 2026.
- Experience with video-assisted thoracoscopic placement of pectus excavatum splints in kittens: six cases. The Journal of small animal practice, 2026.
- Non-Irradiation-Related Complications in Cats Undergoing Radiation Therapy: A Single-Institution Retrospective Study of 167 Cats (2002-2025). Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association, 2026.
- Iron-Handling, Lipid-Oxygenation, and Hypoxia-Response Gene Expression in the Renal Cortex of Cats with Chronic Kidney Disease: An Analysis-Plan-Guided Secondary Analysis. Veterinary sciences, 2026.
- The effect of vibrotactile stimulation on hypoxia-induced irregular breathing and apnea in preterm rabbits. Pediatric research, 2024.