Standard Carbon Monoxide Detector placed on black reflective surface

Carbon Monoxide

Carbon monoxide poisoning is often called the silent killer as, without a carbon monoxide detector, it’s difficult to detect the poisonous gas.

We recommend having a working carbon monoxide detector if you have a gas boiler, gas appliances, an open fire or a log burner in your home.

You can buy a carbon monoxide detector from most DIY stores and major supermarkets. We recommend avoiding unbranded alarms - you can find out more information on the United Against CO website

What are the signs of Carbon Monoxide poisoning?

Think COMA and ask yourself these four questions...

C: Co-habitees

Is anyone else in the house affected? (Including pets)

O: Outdoors

Do your symptoms improve when you're out of the house?

M: Maintenance

Are your heating and cooking appliances properly maintained and have repairs been carried out by competent engineers (e.g. GasSafe registered) where gas is involved?

A: Alarm

Do you have a working carbon monoxide alarm?

Find out more about carbon monoxide poisoning on the NHS website.

What should I do if my carbon monoxide alarm goes off?

  • Stop using all appliances. Switch them off and open doors and windows to ventilate the property
  • Evacuate the property immediately. Stay calm and avoid raising your heart rate  
  • Call the Gas Emergency number 0800 111 999 to report the incident, or the Health and Safety Executive (HSE) Gas Safety Advice Line on 0800 300 363
  • Do not go back into the property. Wait for advice from the emergency services
  • Seek immediate medical help; you may not realise you've been affected by the carbon monoxide and going outside into fresh air won't treat exposure

Find out more about carbon monoxide safety on the United Against CO website

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