Fact Check: Did Vaping Cause a Man's Collapsed Lung? Vaping360 The Safety of Geek Bar Pulse X Vapes: A Comprehensive Analysis Vape Papa A Kernel of Truth: Diacetyl, Popcorn Lung and E Liquids Dinner Lady Customer States: Popcorn Lung : r Justrolledintotheshop 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 It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years.