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 It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Is Second Hand Vape Smoke Bad For You? Learn How to Avoid its Side Effects Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times