Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Tobacco Smoke, Vaping, and Asthma AAFA.org Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals 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 Differing Opinions About Second Hand Vape Exposure Vaping Post