Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Secondhand Vape Plumes Could Form Lung damaging Radicals Health experts say not to 'vape' around children, because the secondhand aerosol (it isn't vapor) from e cigs isn't safe for them Kentucky Health News Characteristics of second hand exposure to aerosols from e cigarettes: A literature review since 2010 ScienceDirect Secondhand smoke and secondhand aerosol Health Risks of E Cigarettes and Vaping American Lung Association