So, two effects are in place. We have a drop in the curve, which is a result of the actual binding of the Co to our hemoglobin. It decreases the oxygen carrying capacity. And effect number two is we have a leftward shift in the curve. And this means that carboxy hemoglobin decreases the affinity or increases the affinity of hemoglobin to oxygen. And that means oxygen will be held much more tightly by the hemoglobin, and less of it will be released and unloaded to the tissues of our body.