E cigarette use associated with increased risk of developing COPD, chronic bronchitis, emphysema and asthma. Thoracic and Sleep Group Queensland COPD Applied Chest Imaging Laboratory Cardiopulmonary Impact of Electronic Cigarettes and Vaping Products: A Scientific Statement From the American Heart Association Circulation Childhood Cigarette Smoking and Risk of COPD Journal of the COPD Foundation COPD and Vaping: Understanding the Risks and Long Term Effects Chronic obstructive pulmonary disease (COPD) is a chronic, progressive lung disorder characterized by persistent airflow limitation that is not fully reversible. It develops gradually, most often due to long term exposure to harmful