First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me Secondhand vape plumes could form lung damaging radicals American Chemical Society Secondhand Vape Exposure: Effects, Who's at Risk, and More 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 Differing Opinions About Second Hand Vape Exposure Vaping Post Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London