What sweeps dirt out of the lungs?

<h2>How Your Body Cleans Your Lungs Every Day</h2> <p>Every breath you take brings in more than just fresh air—it also invites dust, pollen, and microscopic debris. Fortunately, your respiratory system comes equipped with a built-in cleaning crew designed to keep your airways clear and protected.</p> <p>Deep inside your chest, branching air tubes known as <strong>bronchi and bronchioles</strong> do the heavy lifting. The inner walls of these pathways are lined with specialized cells that constantly secrete a sticky layer of mucus. This natural trap catches dirt particles before they can settle deep into your delicate lung tissue.</p> <p>Working right alongside the mucus are millions of microscopic, hair-like structures called <strong>cilia</strong>. These tiny hairs move in a synchronized wave, pushing the trap-laden mucus steadily upward toward your throat. Once it reaches the upper airway, your body naturally clears it out—either by coughing it up or swallowing it harmlessly into the stomach, where acids neutralize any trapped bacteria.</p> <p>It is a seamless, round-the-clock defense system that operates entirely on its own, ensuring every breath you take stays as clean as possible.</p>