E cigarette health scare: Danger chemicals in liquid nicotine could cause 'popcorn lung', scientists warn The Mirror 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, 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 POLMONE A POPCORN da Sigaretta Elettronica Understanding the Dangers of Vaping: Popcorn Lung and Diacetyl Risks Can Juul Pods Cause Popcorn Lung E cigarette, or Vaping Product, Use Associated Lung Injury (EVALI) Fact Sheets