Health Risks of E Cigarettes and Vaping American Lung Association 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 Nicotine e cigarettes reduce harmful chemical exposure and help smokers quit, study finds Is Vape Smoke Bad For Second Hand Evidence Mounts About the Health Impact of Second Hand Vaping The Look of Vapes Has Changed. Here's Why the Shift Has Experts Worried. The New York Times Effects Of Second Hand Vape Smoke Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use