Carbon Monoxide - Symptoms in Pets

Pets can show signs of carbon monoxide poisoning before people do. Learn how to spot the symptoms and what to do if you think your pet has been exposed.

Dog looking out of a window
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Pets can show symptoms first

Pets are often affected by carbon monoxide (CO) before people. Because they are smaller and breathe faster, they may get ill sooner. If your pet suddenly becomes ill indoors, it could be a warning sign of carbon monoxide in your home.

Cat and dog resting together

Common symptoms in pets

Watch for:

Unusual tiredness or weakness

Confusion or strange behaviour

Difficulty breathing

Vomiting

Loss of coordination

Confusion icon

Collapse or seizures

Birds and small animals such as hamsters can be affected very quickly.

What to do

If your pet shows these symptoms indoors:

1 Get everyone outside into fresh air immediately.
2 Open doors and windows if safe to do so.
3 Avoid using appliances you think may be faulty.
4 Seek veterinary help for your pet.

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