Experts show that flavored e cigarettes cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department What Chemicals Does Vaping Cause Popcorn Lung? : R Vaping Is Popcorn Lung Irreversible Vape Mythbusting: Debunking 7 Common Myths