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 Thirdhand Smoke Resource Center Protecting Californians Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign. Passive vapingtime we see it like secondhand smoke and stand up for the right to clean air Signs of the Times Secondhand vape exposure: Risks and side effects E Cigs and Second Hand Vaping: Dangers and Protections