Illustration of Nasal Airflow and Breathing Mechanics #190720 (License: Personal Use)

This black-and-white line drawing depicts a side-profile view of a human nose with directional airflow lines entering and exiting the nostrils. Hatching emphasizes the nasal cavity interior, while stylized lines suggest air movement, possibly indicating normal respiration or relief from congestion. The sketch style evokes vintage medical illustrations, emphasizing function over realism.

Used in health education articles, ENT (ear, nose, throat) clinic websites, or respiratory therapy guides to explain nasal physiology, breathing techniques, or sinus relief methods. Matches user intent seeking visual aids for understanding nasal airflow or congestion symptoms.