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06.03.2025

Lawyers issue key advice to stay safe from the silent killer carbon monoxide

Carbon monoxide is an odourless, colourless gas and one of the most common causes of poisoning worldwide. 

Often referred to as the "silent killer," carbon monoxide poses significant risks, especially because it's difficult to detect without proper equipment. 

Carbon monoxide poisoning leads to numerous hospital admissions and fatalities each year, highlighting the need for increased awareness and preventive measures.

This article explores the sources, symptoms, and preventive measures associated with carbon monoxide poisoning, along with details of personal injury cases we have settled.

Sources of carbon monoxide

Carbon monoxide (CO) is produced whenever fuel isn't burnt properly. Incomplete combustion occurs when there's insufficient oxygen, leading to the production of CO instead of carbon dioxide. 

Common sources include:

  • Gas-powered appliances: Stoves, water heaters, and furnaces can emit CO if not properly vented.
  • Grills, barbeques and cooking appliances: Using these indoors, including in tents and caravans, without adequate ventilation can be hazardous.
  • Household boilers, fireplaces and heating appliances: Boilers can produce CO if they are not properly maintained or if there is a blockage in the venting system.
  • Vehicles: Running cars or other vehicles in enclosed spaces like garages can lead to dangerous CO build-up.
  • Portable generators: These can produce high levels of CO if used indoors or too close to windows and doors.

Symptoms of carbon monoxide poisoning

When carbon monoxide is inhaled, it combines with the haemoglobin in red blood cells, reducing their ability to transport oxygen around the body. The symptoms of carbon monoxide poisoning can be subtle and are often mistaken for the flu. They include:

  • Headache
  • Dizziness and weakness
  • Nausea and vomiting
  • Confusion, disorientation and drowsiness
  • Chest and muscle pain, shortness of breath and racing heartbeat

Symptoms can vary based on the level and duration of exposure, and severe cases can lead to loss of consciousness and death.

Complications from carbon monoxide poisoning

If not treated promptly, carbon monoxide poisoning can lead to severe complications including:

  • Death
  • Brain damage and neurological symptoms
  • Neuropsychiatric symptoms ranging from subtle to severe, including impaired processing speed, short-term memory difficulties, concentration and executive difficulties
  • Heart damage
  • Residual headaches, chronic fatigue, muscle and joint pain
  • Sleep disturbance

Prevention and safety measures

Preventing carbon monoxide poisoning involves a combination of vigilance and proper equipment. Measure include:

  • Regular maintenance: Have your heating system, water heater, and other gas appliances serviced annually by a qualified technician.
  • Install CO detectors: Place them on every level of your home, and in all rooms where there is a fuel burning appliance. Test the detector regularly, check and replace batteries, and check the manufacturer’s guidelines for details of the device’s lifespan.
  • Ensure proper ventilation: Make sure all fuel-burning appliances are well-vented and maintained.
  • Avoid indoor use of outdoor equipment: Do not use a barbeque or camping stove indoors or inside a tent.
  • Never run engines indoors: This includes cars, generators, and other fuel-powered equipment.
  • Educate family members: Ensure everyone in the household knows the dangers of CO and how to respond in an emergency.

What to do in case of suspected CO poisoning

If you suspect carbon monoxide poisoning, it is crucial to act quickly.

  • Move to fresh air immediately: Get outside or open windows and doors to ventilate the area.
  • Seek medical attention: Call emergency services or go to the nearest hospital.
  • Call the gas emergency helpline: 0800 111 999.
  • Do not re-enter the area: Until it has been declared safe by professionals.

Expert lawyers support those affected by carbon monoxide poisoning

At Irwin Mitchell, we've represented many individuals and families who have suffered the devastating effects of carbon monoxide poisoning.

I recently secured six-figure settlements for two members of the Armed Forces who suffered carbon monoxide poisoning after using a defective stove while on cold weather training in Norway.

The pair's subsequent long-term health problems caused them to be medically discharged from service, losing careers they loved. You can find out  more about their stories here, including how the settlements will provide financial security and fund future treatments.

Conclusion

Awareness and prevention are key to protecting yourself and your loved ones from the dangers of carbon monoxide poisoning - whether in the UK or abroad. 

By understanding the sources, recognising the symptoms, and taking preventive measures, you can significantly reduce the risk of exposure to this silent but deadly gas. 

Find out more about Irwin Mitchell's expertise in supporting people and families affected by CO poisoning at our dedicated carbon monoxide claims section.