Does Diacetyl in Vaping Cause Popcorn Lung? Clutch Vape What Chemicals Does Vaping Cause Popcorn Lung? : R Vaping Is Popcorn Lung Irreversible Vape Mythbusting: Debunking 7 Common Myths E Cigarettes at the Point of Sale Counter Tobacco 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