11/02/2026
How does carbon monoxide (CO) enter living spaces?
Even if your appliances are working, CO can build up due to blocked passages.
Have you checked for clogged chimneys or vents due to snow, nests or debris?
You canโt see it. You canโt smell it. You canโt taste it.
But a working carbon monoxide alarm can warn you.
When carbon monoxide is silent, let safety be heard.
Learn more at ontario.ca/CarbonMonoxide.