Vaping and smoking are often compared in terms of health risks, with research suggesting that while vaping may expose users to fewer toxic substances than traditional cigarettes due to the absence of E Cigarettes and Lung Health American Lung Association Electronic Cigarette Solvents, JUUL E Liquids, and Biomarkers of Exposure: In Vivo Evidence for Acrolein and Glycidol in E Cig Derived Aerosols Chemical Research in Toxicology Teens using e cigarettes show evidence of same toxic chemicals as smokers: Study ABC News