👉 Exhalation is a physical action in which an organism exhales air from its lungs. This process is often associated with breathing, as it allows the body to clear out waste products and oxygen from the bloodstream. In simpler terms, when someone exhales, they are letting out all of their carbon dioxide and other gases into the atmosphere. This helps keep our bodies healthy by removing pollutants and toxins that might otherwise be stored in them or released into the environment.