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 Vape Smoke 220w Risk From Second Hand Smoke On Children Greater Than Previously Thought Second Hand Smoking From Vaping Secondhand vape plumes could form lung damaging radicals American Chemical Society Secondhand Vape Exposure: Effects, Who's at Risk, and More Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Adults Don't Think Exposure To Secondhand Vapor From E Cigarettes Is Bad For Kids : Shots Health News : NPR