When we breathe air containing carbon monoxide (), it is absorbed through the bloodstream where it displaces oxygen and binds with the hemoglobin in our blood.
Carbon monoxide has a greater affinity to hemoglobin than oxygen,
Carbon monoxide binds to hemoglobin about 250 times better than oxygen.
Without oxygen, vital organs such as the heart and brain become deprived and will begin to deteriorate.
To compensate, heart rate increases, breathing may become difficult and in the most serious circumstances cardiac trauma, brain damage, coma, etc. occur.