NRBM (non-rebreather mask)

A non-rebreather mask (NRBM) is a medical device used to deliver a high concentration of oxygen to patients who need extra support breathing. It fits snugly over the face and has a reservoir bag that stores oxygen. The mask has one-way valves that prevent the patient from inhaling exhaled air or room air, ensuring they breathe mostly pure oxygen. This setup helps improve oxygen levels quickly in emergency situations or cases of severe respiratory issues. It’s often used in hospitals or emergency settings when immediate, high-concentration oxygen is needed.