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 First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me Parents using e cigs expose kids to dangerous secondhand vapor Futurity Is E Cig Vapour Harmful to My Non Vaping Friends? Dinner Lady Effects Of Second Hand Vape Smoke Secondhand smoke and secondhand aerosol Tobacco Smoke, Vaping, and Asthma AAFA.org