Can You Fail a Drug Test from Secondhand Smoke? Sanctuary Wellness Institute Health Effects from Secondhand Exposure to E Cigarettes: A Systematic Review of Peer Reviewed Articles from 20042024 ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Experts Warn About the Lifetime Effects of Secondhand Smoke in Children CardioSmart American College of Cardiology Juul study shows secondhand vaping emissions are less toxic than cigarette smoke