Carbon Monoxide

Carbon Monoxide - What You Need To Know

A lot of people have heard of carbon monoxide (CO) and know it's dangerous, but that's as far as it goes. CO is an invisible, silent, and odourless toxic gas, often referred to as the "silent killer".

Download our checklist for tips to help prevent and detect CO in your home.

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Where does CO come from?

Improperly operating natural gas appliances including:

  • Furnace
  • Hot water heater
  • Dryer
  • Range
  • Fireplace


Exhaust from:

  • Gas and diesel vehicles
  • Gas-powered machines
  • Wood-burning fireplaces 

Prevent CO in your home by:

  • Have your fuel-burning appliances checked by a qualified technician regularly according to manufacturers’ specifications
  • Install and regularly test your CO alarm

Learn more tips on how to prevent CO in your home

What are the symptoms of CO poisoning?

  • Headache and dizziness
  • Fatigue and weakness
  • Watering and burning eyes
  • Nausea and vomiting
  • Loss of muscle control