Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect Secondhand Vape Exposure: Effects, Who's at Risk, and More How a 14 year old boy became addicted to Spice through vapes Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Secondhand Smoke and Electronic Cigarette Aerosols US EPA