Carbon Monoxide Alarm Rules:
New carbon monoxide alarm rules are coming for existing homes — including detached and semi-detached houses, townhomes, and cottages. Find out about the updated safety requirements taking effect January 1, 2026.
Carbon Monoxide: The Silent Killer
Carbon Monoxide (CO) is known as The Silent Killer because you can't smell it, see it or taste it. But it can harm or kill you. In Ontario, approximately 65% of all CO deaths and injuries occur in homes.
