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 Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Chugachmiut See the sites below for more information on secondhand smoke: https: www.healthline.com health second hand vape#at risk groups https: www.webmd.com lung cancer guide vaping lung cancer#:~:text=Ecigarettes%2C%20sometimes%20called%20vapes