Health Risks of Secondhand Smoke and Aerosols Factsheet 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, Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center SJC Public Health Services Did you know that vaping can have similar secondhand impacts just like cigarettes? It is known to be harmful and has been linked to Instagram