Carbon monoxide is produced whenever a material burns, so any fuel-burning appliances or devices in a home can be a source of carbon monoxide. Here are some common sources of carbon monoxide in a home:

• Fuel-burning appliances: Furnaces, water heaters, space heaters, and dryers that are powered by burning fuel can emit carbon monoxide if they are not properly ventilated, inspected, and maintained.

• Stoves and kitchen ranges: Gas stoves and kitchen ranges can also be a source of carbon monoxide in a home, especially when they are used without proper ventilation, such as a range hood.

• Fireplaces: Poorly ventilated fireplaces and other gas- or wood-burning appliances can also pose a danger.

• Generators: Running a generator inside a home, basement, or garage, or less than 20 feet from any window, door, or vent can cause carbon monoxide to build up inside the home.

• Vehicle exhaust: Vehicle exhaust is another common source of carbon monoxide leaks in a home. Its produced by cars when the fuel combustion process occurs, so its important to never leave a car or truck running in a garage, even if theres a door between the garage and the home.

• Tobacco smoke: Cigarettes can be another source of carbon monoxide for both smokers and the people around them.

Its important to install a carbon monoxide alarm outside every sleeping area and on every level of your home to detect any carbon monoxide leaks. Additionally, its recommended to have fuel-burning appliances inspected and maintained annually, and to never use gas ranges or ovens for heating, burn charcoal indoors, or use a portable gas camp stove indoors.