CO is poisonous gas that you can't see, hear, smell or taste, but breathing in even a small amount could be deadly.
Know the common symptoms to look out for:
Seek medical attention if you are experiencing any symptoms.
Reduce the risk of carbon monoxide by getting your gas appliances (boilers, stoves and fireplaces) services annually by a Gas Safe registered professional and get a carbon monoxide alarm that alerts you to its presence.