The Dangers of Secondhand Smoke: Protecting Yourself from Harmful Effects ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Understanding the Hidden Health Risks of Vaping UL Research Institutes Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Secondhand smoke and e cigarette aerosol exposure in dogs and cats: A scoping review with implications for smoking cessation among pet owners