Carbon monoxide connects to red blood cells, stealing oxygen from your body it needs to live. It combines with these cells nearly 200 times more easily than oxygen, resulting in a condition known as carboxyhemoglobin saturation.
Carbon monoxide, instead of oxygen, then gets carried to the vital organs through the bloodstream. To put it simply, carbon monoxide deprives your body of oxygen. Organs have to have oxygen; when they lack it, they begin to suffocate.
Your body needs a long time to eliminate carbon monoxide; however, it can be taken in much more quickly.