E cigarettes can result in 'Popcorn Lung' Vaping: Safe? Or Are Your Lungs Going Up In Smoke? Smoking and Vaping National Institute of Environmental Health Sciences 883 Vaping Lungs Stock Vectors and Vector Art Shutterstock 4 Years Of Lung Damage From Vaping Resembles Chemical Burns, Report Says The New York Times For 2 Years Vaping is risky. Do not do it if you care about your lungs Thomas Eissenberg The Guardian