If you are asleep, you may not notice any symptoms as they develop
Even if you are awake, early symptoms of CO poisoning can easily be mistaken for the flu, COVID-19, food poisoning, a hangover or general tiredness.
We have listed some of the common symptoms, but not everyone suffering CO poisoning will have all of them
Common symptoms include: -
The greater the amount of CO there is in air or the longer you are breathing in CO, the worse your symptoms may get
…and with very high CO levels
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