Carbon monoxide connects with red blood cells, robbing oxygen from your body it requires to survive. It combines with these cells more than 200 times more easily than oxygen, leading to a condition known as carboxyhemoglobin saturation.
Carbon monoxide, on lieu of oxygen, then gets brought to the important organs by the bloodstream. Simply put, carbon monoxide robs your body of oxygen. Organs have to have oxygen; without it, they begin to suffocate.
It takes your body a long time to get rid of carbon monoxide; however, it can be drawn in much more rapidly.