read and become enlightened. Found this info in less than 2 minutes via a Goggle search. The last I knew Canada adopts many of the OSHA regulations but has a hard time getting Lord Stanley's Cup North of the US border - 1993 last time as I recall - but we still appreciate having Gordie Howe in Hockey-town USA - grew up in the Motown area where we drive SOUTH to get to Canada. Ciao!
https://www.epa.gov/indoor-air-quality-iaq/carbon-monoxides-impact-indoor-air-quality
https://www.homedepot.com/p/UEi-Test-Instruments-Carbon-Monoxide-Detector-with-Alarm-CO71A/306091460?source=shoppingads&locale=en-US&&mtc=Shopping-B-F_D27L-G-D27L-027_005_FIRE_SAFETY-NA-NA-Feed-SMART-NA-NA-SAFETY_SECURITY_FireSafety_New_Engen&cm_mmc=Shopping-B-F_D27L-G-D27L-027_005_FIRE_SAFETY-NA-NA-Feed-SMART-NA-NA-SAFETY_SECURITY_FireSafety_New_Engen-71700000082263410-58700006984682162-92700062875449987&gclid=EAIaIQobChMIjLPS8Nfs8wIVxaeGCh20pQD5EAQYBCABEgKAFfD_BwE&gclsrc=aw.ds