What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Vaping isn't just vapor. It's an aerosol filled with nicotine and chemicals that go deep into your lungs and straight into your bloodstream. Many vapes contain: Highly addictive nicotine E cigarettes contain hazardous substances, addictive and harmful 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 E liquide Vincent dans les Vapes Armes naturels (VDLV) Armes VDLV Vincent Dans Les Vapes eliquides franais