Sources and limits
These sources support general safety and air-system principles. A cited guide does not inspect a particular home.
- U.S. EPA · Should you have air ducts cleaned?
- U.S. EPA · Guide to air cleaners in the home
- TSSA · Hire registered and certified fuels professionals
- City of Toronto · Carbon monoxide alarms
- Health Canada · Preventing carbon monoxide exposure
- Natural Resources Canada · Keeping the Heat In, section 9
- NADCA · ACR standard overview
- City of Toronto · Neighbourhood profiles and boundaries
Map boundaries derive from City of Toronto neighbourhood geometry. Familiar district names and approximate markers are an editorial layer. Toronto postal area, weather and building type inform questions to ask but do not generate a diagnosis or price.