How to Properly Inhale When Vaping: A Guide Clutch Vape 5 Vaping Facts You Need to Know Johns Hopkins Medicine Inhale this: What does vaping do to your lungs? 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