5 Ways Oxygen Therapy Is Beneficial For Copd Patients
Chronic obstructive pulmonary disease or COPD leads to airflow obstruction in the lung. It causes difficulty in breathing, production of mucus, wheezing, and coughing. If a person has chronic bronchitis or emphysema, these can be contributing factors to COPD. Long-term exposure to particulate matter, cigarette smoke, and irritating gases cause COPD.