Oxygen supplementation therapy is a gas that is administered as a treatment for conditions that make it difficult to breathe. Oxygen supplementation therapy is often used to treat emphysema, chronic obstructive pulmonary disease (COPD), asthma, sleep apnea, heart failure, and more. Oxygen supplementation therapy is administered through either a mask that fits over the face or small tubes, called cannula, that are inserted inside the nose. The oxygen is stored in a metal cylinder, which comes in a variety of sizes. Oxygen supplementation therapy typically helps people who aren't getting enough oxygen have more energy, get better sleep at night, and be able to breathe more easily.
