Is Second Hand Vape Smoke Bad For You? Learn How to Avoid its Side 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, City Did you know that Secondhand vape and cigarette smoke have similar nicotine levels? For tips on how to protect yourself and your loved ones from toxic secondhand smoke please visit Is Second Hand Vape Smoke Harmful To Children Where You Learn Smoke Free Environments Juul study shows secondhand vaping emissions are less toxic than cigarette smoke HEALTH Does vaping cause secondhand smoke? Doctors explain the side effects: Details below.