Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems. Is Secondhand Vape Smoke Harmful Secondhand Vape Exposure: Effects, Who's At Risk, And More Australia Is Second Hand Vaping Dangerous Characteristics of second hand exposure to aerosols from e cigarettes: A literature review since 2010 ScienceDirect