Carbon monoxide, also known as The Silent Killer. No colour, no odour, no taste.
Common sources of Carbon Monoxide:

- Furnace
- Water Heaters
- Dryers
- BBQ
- Stove
- Car
- Fuel Fired Fireplace
- Blocked Vents or Chimneys
- Portable Fuel Fired Generator
Ensure Carbon Monoxide detectors are installed outside all sleeping areas
For added protection, install a carbon monoxide alarm on every story of the home.
Know the sound of your carbon monoxide alarm:
- Your CO alarm sounds different than your smoke alarm. Test both alarms monthly and make sure everyone in your home knows the difference between the two alarm sounds.
- Don't be confused by the sound of your CO alarm's low-battery warning. Follow your CO alarm manufacturer's instructions so you know the difference between the low-battery warning, the “end-of-life” warning, and the alarm alerting you to the presence of CO in your home
Source: Office of the Fire Marshal