Carbon monoxide (CO) is a colorless, odorless and tasteless gas. It’s produced by partial fuel combustion frequently caused by not enough oxygen. In your home, appliances that consume natural gas, charcoal, wood or kerosene are at risk. Especially if they are not operating correctly or have been installed incorrectly.
Vehicle exhaust fumes from nearby garages, as well as poorly operating fireplaces may also be a carbon monoxide source. CO is poisonous to the body and is deadly at high levels or with extended exposure.