Symptoms Of Second hand Vape Smoke 2nd Hand Vape Smoke Side Effects Health experts say not 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 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