Where does the air get from the nasal cavity?

The nasal cavity is essential for gas exchange. There, the air is warmed up by a capillary network, cleaned of dust and various particles. From the nasal cavity, air enters the nasopharynx, and then into the larynx. Through the larynx, air enters the trachea. Then air through the bronchi enters the lungs. On exhalation, air travels the same path, but in reverse order. We can breathe both through the nose and through the mouth. In cold weather and in dusty places, it is better to breathe through the nose so as not to damage the lungs and reduce the risk of disease.