E Cigs and Second Hand Vaping: Dangers and Protections 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 Is Secondhand Vaping Harmful To Your Health? Symptoms Of Second Hand Vape Smoke Secondhand smoke is harmful to those around you, putting them Vaping myths and the facts Better Health NHS