Oxygen diffuses across the alveolar and capillary partitions to the bloodstream, binding to hemoglobin in purple blood cells. At the same time, carbon dioxide, a byproduct of mobile metabolism, diffuses in the blood to the alveoli to get exhaled. Mechanical and pulmonary or pure ventilation have several similarities and variations. https://ventilationductwork68901.atualblog.com/44048170/how-ventilation-can-save-you-time-stress-and-money