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Hopefully this article will make you realize and value the health benefits of fresh air. And as a result, you will be spending a lot more time outside of the city. Here is a list of important health benefits of fresh air: 1  Fresh air is good for digestion. 2  Improves your blood pressure and heart rate.3  It makes you happier.4  Strengthens your immune system.5  Fresh air cleans your lungs.nd as a result, you will be spending a lot more time outside of the city. Here is a list of important health benefits of fresh air: 1  Fresh air is good for digestion. 2  Improves your blood pressure and heart rate. 3  It makes you happier. 4  Strengthens your immune system.
The air sacs are very important because through them, the body receives oxygen and releases carbon dioxide. Dust that reaches the sacs and the lower part of the airways where there are no cilia is attacked by special cells called macrophages. These are extremely important for the defense of the lungs. They keep the air sacs clean. Macrophages virtually swallow the particles.