What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Myth: Vaping is harmless. Fact: Vapes contain nicotine and other chemicals that can harm your lungs and make it harder to quit for good. In California, vapes are now one of the Curious about the difference between healthy lungs and a vapers lungs? See how vaping impacts your lungs, and why its best to quit early. E cigarette, or Vaping Product, Use Associated Lung Injury (EVALI) Fact Sheets Yale Medicine Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department