Tobacco Smoke, Vaping, and Asthma AAFA.org 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 Secondhand Vape Exposure: Effects, Who's at Risk, and More How Smoking vs. Vaping Affects the Eyes Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects