Carbon Monoxide – Video 3

Protect Yourself and Your Family from Carbon Monoxide – Signs & Symptoms of Carbon Monoxide Poisoning and What to do if you Suspect a Carbon Monoxide Escape

Our third and final video on carbon monoxide safety advice focuses on how to recognise the signs and symptoms of carbon monoxide poisoning and what to do if you suspect a CO escape.
See below the video for a transcript and links to our two other CO safety videos.

Make sure you also watch our first and second carbon monoxide videos:

Video 3 Transcript

Our previous film covered where your Carbon Monoxide alarm can be fixed. However, no safety device is infallible. In the unlikely event that your alarm fails, or if you stay at a property without one, learn to recognise the early symptoms of Carbon Monoxide poisoning to allow you to get out of the property. Many of these symptoms can easily be confused with flu, viral infections or tiredness.

If you suspect a Carbon Monoxide escape:

  • Close the appliance air controls
  • Ventilate the area thoroughly Animate/write “open any doors and windows”
  • And leave the property immediately.

Do not return until your appliance or boiler is extinguished and you have been told it is safe to do so. You must not use your appliance again until the cause of the spillage has been found and fixed. If you feel unwell, go to your doctor, call NHS Direct on 111 (0845 4647 in some areas) or if urgent, phone 999 for an ambulance.

Thank you for watching our 3 Carbon Monoxide Safety film shorts. If your appliance Installer filled in a HETAS Commissioning sheet then you can find more important consumer safety advice on Carbon Monoxide and more on the back. HETAS also publish the leaflet “Protect Yourself from Carbon Monoxide” which is available to view online at the following address:

Further carbon monoxide safety guidance is also available at:

Or log into the technical area to read our Technical Note: