Characteristics of second hand exposure to aerosols from e cigarettes: A literature review since 2010 ScienceDirect Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Is passive vaping a hidden risk to the public? Here's what the experts know so far ABC News Is Vaping Better Than Smoking? American Heart Association ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Tobacco Smoke, Vaping, and Asthma AAFA.org