CARBON MONOXIDE (CO) Carbon monoxide is a clear, odorless, heavier-than-air gas that is created by inefficient combustion emissions. The most common sources in industry are gasoline or diesel-powered pressure washers, air compressors, forklifts or other petroleum-fired machinery. The chemical makeup of CO is a carbon molecule linked to an oxygen molecule. The carbon molecule makes CO heavier than air and will not allow the lungs to absorb oxygen into the bloodstream. Without oxygen, you will slowly suffocate to death. What does this mean for workers? As the CO fills the space, it displaces oxygen and will affect workers as follows: Slight headache and...