Is Second Hand Vape Smoke Harmful The Scary Truth About Teen Vaping Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Secondhand vape plumes could form lung damaging radicals American Chemical Society Is Second Hand Vape Smoke Harmful Secondhand smoke and secondhand aerosol ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC