E cigarettes can result in 'Popcorn Lung' Inhalation Toxicology of Vaping Products and Implications for Pulmonary Health What are the respiratory effects of e cigarettes? The BMJ 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 Vaping e cigarettes shown to be more harmful to lungs than smoking cigarettes new study Express.co.uk