Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC13 Houston Secondhand smoke from vaping could be harmful to children: study ABC13 Houston Secondhand Vape Exposure: Effects, Who's at Risk, and More Differing Opinions About Second Hand Vape Exposure Vaping Post What harm does second hand fumes from vaping cause to young lungs? Medical experts want to know ABC11 Raleigh Durham