Yes, vaping is toxic and the consequences can be permanent. A U.S. teenager developed popcorn lung a life altering, incurable condition after secretly vaping flavored e cigarettes for E CIGARETTE OR VAPING PRODUCT USE ASSOCIATED LUNG INJURY BEYOND YOUTH: A CASE OF RAPID ONSET RESPIRATORY FAILURE IN AN OLDER FEMALE SHM Abstracts Society of Hospital Medicine Can vaping scar your lungs? New insights and a possible remedy E Cigarette, or Vaping, Product Use Associated Lung Injury (EVALI) with Acute Respiratory Failure Clear The Air News Tobacco Blog Clear The Air News Tobacco Blog