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UKHSA Warns: CO Poisoning Risk Peaks Now
20 Nov
Summary
- Carbon monoxide is an invisible, odorless gas.
- Faulty appliances and poor ventilation increase CO risk.
- Winter months see a surge in deadly CO incidents.

A critical home hazard, carbon monoxide (CO) poisoning, is being highlighted by the UK Health Security Agency (UKHSA) as the colder months arrive. This dangerous, invisible, and odorless gas is often a byproduct of incomplete combustion from fuel-burning appliances. Faulty installation, poor maintenance, or malfunctioning devices like gas boilers and wood-burning stoves can release CO into homes.
The risk of severe illness or death from CO poisoning intensifies during autumn and winter. This is due to increased use of heating appliances coupled with closed windows for warmth, creating conditions where the gas can dangerously accumulate, particularly in poorly ventilated or smaller rooms.
Protecting against this threat involves simple yet vital steps. The UKHSA strongly advises installing and regularly testing carbon monoxide alarms. Additionally, ensuring annual servicing of appliances, using extractor fans, and maintaining home ventilation can significantly reduce risks. Recognizing signs like appliance condensation or altered flame colors can also signal a potential problem.




