A colorless, odorless, and tasteless gas, Carbon Monoxide (CO) is a life-threatening by-product found in fumes produced by burning gasoline, propane, wood, charcoal, or other fuel used in vehicles, furnaces, stoves, fireplaces, gas ranges, or grills. Most of the time CO is released in the air outside, where it is relatively harmless. But when CO accumulates in a tightly sealed or enclosed space, like a home or building, it can be very lethal, very fast.
