Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects Juul study shows secondhand vaping emissions are less toxic than cigarette smoke 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 Children at risk: Emory study uncovers the hidden dangers of secondhand vape exposure