How to Properly Inhale Electronic Cigarette Vapor ? X Bar Official Online Shop How to Properly Store E Liquids and Prevent Accidental Exposure of E Liquids to Children FDA Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking What Does Vaping Do to Your Lungs? Johns Hopkins Medicine