At least 35 million people in Britain are still at risk from carbon monoxide poisoning, a new survey has found.
A survey for the Carbon Monoxide - Be Alarmed! campaign - found that people mistakenly think that their smoke alarm will detect carbon monoxide.
The Department of Health estimates that 50 people are killed by carbon monoxide poisoning, and at least 4,000 are treated in hospital, in the UK each year.
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