Secondhand Vape Exposure: Effects, Who's at Risk, and More Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Secondhand vaping: The latest vaping health risk CNET Characteristics of second hand exposure to aerosols from e cigarettes: A literature review since 2010 ScienceDirect Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center