Are you supposed to inhale when you vape? Vaping Post 5 Vaping Facts You Need to Know Johns Hopkins Medicine Vaping refers to the act of inhaling and exhaling aerosol, often called vapor, produced by an electronic cigarette or similar device. These devices heat a liquid that usually contains nicotine, flavorings, and How Smoking vs Vaping Affects Your Lungs You Must See This ! ! 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 The Impact of Smoking and Vaping on Respiratory Health Blog