Why Are E Cigarettes Safer Than Cigarettes Vape Blog E cigs: What You Need to Know if You Care for Patients with COPD Challenges in COPD The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association The Role of Smoking in the Mechanisms of Development of Chronic Obstructive Pulmonary Disease and Atherosclerosis E cigarette, or Vaping Product, Use Associated Lung Injury (EVALI) Fact Sheets Yale Medicine