Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Is Second hand Vapour Harmful To Others? 5 Vaping Facts You Need to Know Johns Hopkins Medicine 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 Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London