The Venturi mask is a high-flow-rate medical oxygen delivery device designed based on the Venturi effect in fluid dynamics. Its core principle is that oxygen is forced through a narrow channel to form a jet of air, creating a negative pressure zone at the mask's edge that draws in ambient air. By adjusting the edge slit size, precise control of the air-oxygen mixing ratio is achieved, providing a stable oxygen concentration of 24%-60%.

The oxygen mask ensures that patients receive a steady supply of oxygen, which can help improve their breathing and overall health. It is designed to fit comfortably over the patient's nose and mouth, without causing any discomfort or irritation. Easy to use and can be quickly attached to an oxygen source in hospitals, clinics, or home settings.