Can vaping cause cancer? The evidence suggests it might. The Washington Post Propylene glycol, a component of electronic cigarette liquid, damages epithelial cells in human small airways Respiratory Research Springer Nature Link American Cancer Society to vape company: Keep our name outta your mouth Ars Technica Vaping and e cigarette use is a troubling trend Fort Plain Central School District Propylene glycol, a component of electronic cigarette liquid, damages epithelial cells in human small airways Respiratory Research Springer Nature Link Vaping vs. smoking: what are the risks? Pacific Life Re