Carbon Monoxide

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Carbon Monoxide (CO): The Silent Killer

Where Does Carbon Monoxide Come From?

Heating oil, natural gas, propane, kerosene, gasoline, wood, and almost anything that burns can produce carbon monoxide. You may be exposed to carbon monoxide if:

  • You leave your motor vehicle engine running
  • Your home contains an incorrectly vented or malfunctioning water heater, furnace, space heater, fireplace, or stove
  • You burn charcoal, alcohol, or gasoline in an enclosed tent, camper, or garage
  • You are being pulled behind a boat in a tube

Signs and Symptoms of Carbon Monoxide Exposure

Some symptoms associated with low levels of carbon monoxide exposure include:

  • Headache (may feel like a tight band around the head)
  • Drowsiness
  • Nausea and/or vomiting
  • Dizziness

In more severe exposures, symptoms may include:

  • Disorientation
  • Loss of consciousness
  • Coma
  • Seizures
  • Respiratory failure
  • Cardiac arrest

For carbon monoxide exposure or questions, call Poison Help at 1-800-222-1222.

What About Carbon Monoxide Detectors?

The Minnesota Regional Poison Center recommends having a UL-listed CO alarm within 10 feet of each bedroom. Follow the manufacturer’s instructions for routine maintenance and plan to replace alarms every five to seven years.

Carbon Monoxide Resources