Photos Show Vaping Lung Damage Like Blisters and Lung Collapse Business Insider Mouth to Lung vs. Direct to Lung Vaping: Understanding the Key Differences Vape King Blog Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition. Vaping and the Lungs Poster Clinical Charts and Supplies