Secondhand Vape Exposure: Effects, Who's at Risk, and More Parents using e cigs expose kids to dangerous secondhand vapor Futurity ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand vaping: The latest vaping health risk CNET How Bad Is Second Hand Vape Smoke Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky