How does smoking prevent the trachea cleaning system from working?

Smoking damages the cilia, tiny hair-like structures lining the trachea and respiratory tract, which play a crucial role in clearing mucus and debris. The chemicals in cigarette smoke paralyze and eventually destroy these cilia, impairing their ability to move mucus out of the airways. This leads to a buildup of mucus and pathogens, increasing the risk of infections and respiratory issues. As a result, the natural cleaning mechanism of the trachea is significantly hindered.