Protection Topic

Carbon Monoxide: The Invisible Risk

LIFE SAFETY · CARBON MONOXIDE

Carbon Monoxide Awareness

Carbon monoxide (CO) is an invisible, odourless gas that can
cause serious illness or death. Understanding common sources,
recognizing symptoms and maintaining certified alarms are
important parts of household safety.

01 / CANADIAN PUBLIC HEALTH

What the Canadian estimate shows

~300
deaths estimated each year in Canada from carbon monoxide poisoning
~200
hospitalizations estimated each year in Canada

These are estimates attributed to the Government of Canada.
Confirm the original publication and its reporting period
before presenting them as current figures.

Know the risk

CO cannot be detected reliably by sight or smell.
Use appropriate alarms and follow fuel-burning
appliance safety instructions.

02 / COMMON SOURCES

Where carbon monoxide can originate

CO can build up when fuel-burning equipment is faulty,
improperly used or inadequately ventilated.

  • Furnaces, fireplaces, wood and pellet stoves.
  • Fuel-burning water heaters and other appliances.
  • Vehicle exhaust entering from an attached garage.
  • Generators, barbecues, camping stoves and other fuel-burning equipment used improperly or in poorly ventilated spaces.
Important precaution

Never operate a generator or barbecue indoors,
in a garage or in another enclosed space. Follow
the manufacturer’s outdoor placement and clearance
instructions.

03 / SYMPTOMS & RESPONSE

Recognize symptoms and act quickly

Possible early symptoms of carbon monoxide exposure include:

  • Headache.
  • Shortness of breath.
  • Fatigue or unusual weakness.
  • Dizziness.
  • Nausea and vomiting.
EMERGENCY RESPONSE

If an alarm sounds or exposure is suspected

  • Leave the affected area immediately and get to fresh air.
  • Call 9-1-1 or local emergency services from a safe location.
  • Seek urgent medical assessment if exposure is suspected.
  • Do not re-enter until emergency responders say it is safe.

Do not remain inside to investigate the source or
attempt to find the problem.

04 / HOUSEHOLD READINESS

Make CO safety part of your home routine

Prevention combines suitable alarms, equipment maintenance
and a household plan that everyone understands.

  • Use alarms certified to applicable Canadian standards.
  • Install, test, maintain and replace alarms according to applicable codes and manufacturer instructions.
  • Arrange qualified maintenance of fuel-burning equipment.
  • Use appliances and generators according to official safety guidance and manufacturer instructions.
  • Ensure every household member understands the alarm and emergency plan.

Never ignore a CO alarm

Do not assume an alarm is false because no one feels
sick or because you cannot smell anything unusual.

CANADIAN HOME PROTECTION REPORT™ 2026
Source: Government of Canada public-health guidance
Important: Home protection technology cannot prevent every loss or guarantee detection, reporting or resolution. Insurance coverage, deductibles, exclusions, endorsements, pricing and eligibility vary by insurer and policy.