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To ask the Minister of State, Department for Business, Innovation and Skills
(1) what information his Department holds on the proportion of carbon monoxide alarms sold which are (a) provided with lifetime batteries and (b) mains wired;
The Department does not hold information relating to sales of carbon monoxide detectors. We would advise consumers to only buy carbon monoxide detectors that are marked as conforming to BS EN 50291 as this standard includes performance requirements for such detectors.