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What is carbon monoxide?
Carbon monoxide (CO) is a colorless, odorless, tasteless gas that is produced by the incomplete combustion of fuels such as wood, natural gas, gasoline, diesel, kerosene, coal and charcoal. It is caused by lack of oxygen or a disruption in the burning process.
Household appliances such as your furnace, water heater, stove, space heaters, charcoal grill and gas dryer can be sources of carbon monoxide, especially if they are not in good working condition or have been installed improperly. Vehicle exhaust fumes from attached garages, as well as improperly operating fireplaces, also can become carbon monoxide hazards, particularly if your home is well-sealed for energy efficiency.