In secondhand vape, scientists smell risk American Heart Association Secondhand Vape Exposure: Effects, Who's at Risk, and More 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 Can you get second hand smoke from a vape? Understanding Secondhand Vape Smoke Eliquidstop