Vaping Marijuana Causes More Lung Damage Than Vaping or Smoking Nicotine Vaping: Safe? Or Are Your Lungs Going Up In Smoke? 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 What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Does vaping cause popcorn lung? Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association