Carbon monoxide (CO) is a colorless, odorless and tasteless gas. It’s produced by insufficient fuel combustion often caused by a lack of oxygen. In your house, appliances that need natural gas, charcoal, wood or kerosene are susceptible. Especially if they are not running accurately or have been installed wrong.
Vehicle exhaust fumes from nearby garages, as well as poorly operating fireplaces could also create carbon monoxide. CO is dangerous to the body and is deadly at increased levels or with prolonged exposure.