In what organs is blood oxygenated and carbon dioxide removed from the blood in mammals?

In mammals, the composition of the blood inside the lungs changes. There is a capillary network. They interact with the air in the lungs. The change in blood composition occurs due to a higher concentration of carbon dioxide in the blood and a higher concentration of oxygen in the lungs. The bonds of erythrocytes with carbon dioxide molecules are broken and stronger bonds with oxygen are created. Then, the blood diverges to all tissues and organs through arteries and capillaries. There, these bonds again change to oxide-carbon.