Second Hand Vaping Vape Smoke Free 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 E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? Is Secondhand Vape Smoke Bad for You? The Truth on the Trend Molekule Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA