The risks of vape pens' secondhand aerosols Tobacco Smoke, Vaping, and Asthma AAFA.org ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Is Vaping Better Than Smoking? American Heart Association Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC13 Houston Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London