Balloon blowing is not a treatment for chronic obstructive pulmonary disease (COPD), but it can delay the progression of respiratory insufficiency caused by COPD to a more severe level. Chronic obstructive pulmonary disease is mainly caused by chronic bronchitis and chronic obstructive pulmonary emphysema. The main reason is that the elastic retraction of alveoli is reduced and the amount of residual air in the lungs is increased, resulting in progressive exhalation dyspnea, which is aggravated by infection. At this time, during the remission period, patients can do breathing exercises such as blowing up balloons to exhale as much residual air from the lungs as possible to prevent the progression of chronic obstructive pulmonary disease to the severe direction, but it cannot be used to treat chronic obstructive pulmonary disease. Chronic obstructive pulmonary disease is a chronic disease with irreversible airway obstruction and can only be slowed down by a combination of treatments, including balloon blowing training.