Carbon monoxide (CO) is a colorless, odorless and tasteless gas. It’s created by incomplete fuel combustion usually caused by a lack of oxygen. In your home, appliances that need natural gas, charcoal, wood or kerosene are vulnerable. Especially if they are not running properly or have been installed incorrectly.
Vehicle exhaust fumes from neighboring garages, as well as malfunctioning fireplaces can also produce carbon monoxide. CO is dangerous to the body and is fatal at high levels or with long exposure.