Complete Guide to Secondhand Vaping Devices Vape Direct Is Vaping Better Than Smoking? American Heart Association Secondhand Smoke vs Vape: What the Science Says 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 Second Hand Vaping: A Problem or Not? My Vapery UK Secondhand Electronic Cigarette Aerosol and Indoor Air Quality US EPA