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 Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Popcorn lung. Vaping lung injury. Let's stop confusing the two. Popcorn lung is the lazy name for bronchiolitis obliteransa disease of the small airways, not the alveoli. It got its name from Popcorn lung: how vaping could scar your lungs for life Popcorn Lunge durch Diacetyl in E Zigaretten Liquids stimmt das?