Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Secondhand Vape Exposure: Effects, Who's at Risk, and More Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California The risks of first hand and second hand vaping Eoleaf Second hand vape smoke linked to more asthma symptoms in kids