E cigarettes cause lung condition known as EVALI : Revista Pesquisa Fapesp Yes, vaping is toxic. A U.S. teen developed "popcorn lung" after secretly vaping for three years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the condition scars the lungs' tiniest Inhalation Toxicology of Vaping Products and Implications for Pulmonary Health PET imaging shows greater lung inflammation in e cigarette users than cigarette smokers Harmful Effects of Vaping Vaping: What You Need To Know Community Parents District Home The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association