Carbon monoxide (CO) is a clear, odorless and tasteless gas. It’s produced by partial fuel combustion frequently caused by a lack of oxygen. In your house, appliances that rely on natural gas, charcoal, wood or kerosene are vulnerable. Especially if they are not operating properly or have been installed incorrectly.
Vehicle exhaust fumes from neighboring garages, as well as malfunctioning fireplaces could also produce carbon monoxide. CO is toxic to the body and is fatal at increased levels or with extended exposure.