Invisible winter killer alert: 20 Brits die yearly

Invisible Winter Killer Alert in the UK

People are being warned to watch for dangerous signs at home that could indicate a lethal risk during winter. The UK Health Security Agency (UKHSA) has sounded an alarm after estimating that around 20 people die annually in Britain because of this hidden threat.

What Is the Danger?

The alert refers to carbon monoxide (CO) poisoning, a silent and invisible killer. It is a colorless, odorless gas produced by faulty fuel-burning appliances such as boilers, heaters, and stoves.

Symptoms to Watch For

The UKHSA advises looking out for symptoms like:

These can occur when people spend prolonged periods indoors with malfunctioning appliances, especially during the colder months.

Prevention Measures

Officials stress the importance of:

Expert Quote

The agency stated:

"Carbon monoxide is known as a silent killer because it cannot be seen, smelled, or heard, yet it causes around 20 deaths every winter in the UK. Being vigilant about signs and using detectors can save lives."


Carbon monoxide is an often overlooked winter hazard causing fatal poisoning in the UK, underscoring the need for household vigilance and safety devices.

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Glasgow Live on MSN Glasgow Live on MSN — 2025-12-01

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