Often called the invisible killer, carbon monoxide (CO) is an odorless, colorless gas created when fuels (such as gasoline, wood, coal, natural gas, propane, oil, and methane) burn incompletely.
- In home concerns heating and cooking equipment that burn fuel are potential sources of carbon monoxide. Vehicles or generators running in an attached garage can also produce dangerous levels of carbon monoxide.
- A person can be poisoned by a small amount of CO over a longer period of time or by a large amount of CO over shorter amount of time.