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We’ve uncovered even more unsafe carbon monoxide alarms

Find out what our latest tests into carbon monoxide alarms have discovered, including some alarms that fail to detect CO and could pose a risk to life.

Nearly four in ten British households don’t have a CO alarm – is your family at risk?

There are between 25 and 50 carbon monoxide (CO) deaths in the UK every year, and countless more incidents of low level poisonings that go unrecorded. Yet Which? research reveals...

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