An e cigarette is a battery operated device that heats liquid nicotine, flavoring, and other additives to create an aerosol. This JAMA Patient Page describes e cigarettes and the potential health effects of vaping. https: ja.ma 4dbZqrL E Cigs Are Going Tobacco Free With Synthetic Nicotine WIRED 5 Vaping Facts You Need to Know Johns Hopkins Medicine Nicotine Pouches vs. Cigarettes vs. Vape: Which Is Healthier? FIX & KLINT E cigarette, or Vaping Product, Use Associated Lung Injury (EVALI) Fact Sheets Yale Medicine