No, Vaping Doesn't Cause Popcorn Lung Let's Set the Record Straight Chemical Concerns: Which Vapes Contain Diacetyl? Understanding the Risks of Vaping Geek Bars and Elf Bars No, Vaping Doesn't Cause Popcorn Lung Let's Set the Record Straight The WORST Vape Flavor Ever: Burnt Popcorn Nightmare! It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years.