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IF IN DOUBT CONSULT A MEDICAL PRACTITIONER. 9. HOW TO PROTECT YOUR FAMILY Follow these guidelines to reduce the risk of Carbon Monoxide poisoning. (1) Know and look out for tell-tale signs that Carbon Monoxide may be present. These include: - The CO Alarm warning of abnormal levels. - Staining, sooting or discolouration on or around appliances. - A pilot light frequently going out. - A strange smell when an appliance is working. - A naked gas flame which is yellow or orange, instead of the norma