Carbon monoxide (CO) is a serious public health issue. It is an odorless, colorless and toxic gas. It is impossible to see, taste or smell, and it can kill you before you are aware it is in your home.
Carbon monoxide is produced by appliances and other devices that generate combustion fumes, such as those that burn gas or other petroleum products, wood and other fuels. The danger occurs when too much carbon monoxide accumulates in a contained, poorly ventilated space.