City of Manchester, NH Official Website

Carbon Monoxide Detectors

What is Carbon Monoxide (CO)?

Carbon monoxide (CO) is a odorless, colorless gas produced by burning fossil fuels (Fossil fuels shall include natural gas, coal, kerosene, oil, propane and wood etc.) Exposure to lower levels of CO over several hours can be just as dangerous as exposure to higher levels for a few minutes.

Who is most at risk?

  • Children
  • Elderly
  • People with lung or heart disease
  • Pregnant woman

Signs and symptoms of CO poisoning include:

  • Headache
  • Fatigue
  • Sleepiness
  • Weakness
  • Nausea, Vomiting
  • Dizziness, Confusion
  • Trouble breathing

If prolonged exposure continues, LOSS OF CONSCIOUSNESS, COMA and ultimately DEATH will occur.

What to do if your CO detector goes off.

  • Ventilate the house and get out!
  • As you leave, turn off fuel burning appliances if possible.
  • Get fresh air.
  • Call 911.
  • Seek medical attention if you have signs & symptoms of CO poisoning.
  • Don't go back into the building until cleared by the fire department.

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