Oxygen is an important component for humans to breathe. If it cannot be obtained naturally, it is likely to need the help of oxygen therapy. The inability of a person to get oxygen naturally usually occurs when he is suffering from respiratory disorders. Through oxygen therapy, a person can improve sleep quality and physical strength, as well as overall quality of life for the better. Reasons for COPD Patients Needing Oxygen Therapy One of the health problems that usually requires oxygen therapy is chronic obstructive pulmonary disease (COPD). COPD is a long-term disease affecting the lungs, namely chronic bronchitis and emphysema. COPD is usually characterized by a cough with phlegm that does not heal and shortness of breath. Through oxygen therapy, patients will get more oxygen, even if the breathing process is interrupted or cannot be done freely. Oxygen therapy might also increase the life expectancy of people with COPD. To make it easy for patients to get oxygen, there are