What's the Difference Between Smok Nord 4 and Smok Nord X? Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand Smoke and Electronic Cigarette Aerosols US EPA ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Effect of second hand fumes from vaping on young lungs