Was ist eine Popcorn Lunge? World of Smoke Popcorn Lung: The Deadly Secret in Your Vape! Did you know that the sweet, tempting flavor in your e liquid could be hiding a chemical called Diacetyl? This chemical, which tastes Popcorn Lunge Vape 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 Experts say that flavored e cigarettes can 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, What is Popcorn Lung? Popcorn Lung is a serious, permanent lung disease caused by inhaling harmful chemicals like diacetyl, sometimes found in flavored vapes. Tips for Parents & Caregivers: Talk