Non rebreather mask adult * 4

A non-rebreather mask for adults is a medical device used to deliver high concentrations of oxygen to patients who are experiencing respiratory distress or require oxygen therapy. The mask covers both the nose and mouth and is equipped with a one-way valve and an oxygen reservoir bag that prevents the patient from inhaling exhaled air (carbon dioxide), ensuring they receive nearly pure oxygen. This type of mask is often used in emergency situations, such as severe hypoxia, trauma, or during acute respiratory conditions, to provide maximum oxygen delivery and improve breathing efficiency.