Carbon Monoxide Alarms

Under the Ontario Fire Code, you must install at least one working carbon monoxide alarm if your home contains fuel burning appliance(s), a fireplace or an attached garage.

All registered owners of all single and multiple dwelling units must comply, and landlords must install carbon monoxide alarms in rental units.

Place alarms so they can be heard in every bedroom when doors are closed.

What is Carbon Monoxide?

Carbon monoxide (CO) is a colourless, odourless, tasteless and toxic gas. It can poison you quickly in high concentrations, or slowly in low doses. Exposure can cause flu-like symptoms such as: headaches, nausea, dizziness, burning eyes, confusion, drowsiness and loss of consciousness.

If you suspect someone has carbon monoxide poisoning bring the person outside for fresh air and seek immediate medical attention

Carbon Monoxide Alarm Tips

  • Maintain your CO detector according to the manufacturer's instructions
  • Keep your air vents clean by vacuuming them occasionally
  • Test the detector monthly
  • If your alarm sounds, call 911 and leave the home immediately

Learn more.