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Carbon monoxide poisoning

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Introduction
Carbon monoxide is a poisonous gas that has no smell or taste. Breathing it in can make you unwell, and it can kill.
Symptoms of carbon monoxide poisoning
The signs and symptoms of carbon monoxide poisoning are not always obvious, especially during low-level exposure. Some people may also have a pre-existing condition with similar symptoms.
Causes of carbon monoxide poisoning
Carbon monoxide is produced when fuels such as gas, oil, coal and wood do not burn fully. Burning charcoal, running cars and the smoke from cigarettes also produce carbon monoxide gas.
Treating carbon monoxide poisoning
If carbon monoxide poisoning is suspected, you should move away from the source of the gas so that your symptoms can be assessed.
Complications of carbon monoxide poisoning
Prolonged exposure to carbon monoxide can cause serious complications, including brain damage and heart problems. In very severe cases, it can result in death.
Preventing carbon monoxide poisoning
The best way to protect against carbon monoxide poisoning is to be aware of the dangers, and to identify appliances that could emit carbon monoxide gas.