Should I Be Concerned About Secondhand Vaping? Secondhand smoke from vaping could be harmful to children: study ABC13 Houston Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Secondhand vaping: The latest vaping health risk CNET When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to E Cig Vapor Or Secondhand Smoke: Which Is Worse For You?