VAPOR VIEW The vapor from an e-cig can contain substantial amounts of toxic gases, a new study finds. And much of those toxicants trace to the solvent used to carry flavorings and any nicotine through the device.
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New study homes in on a primary source of toxic vaping compounds: the thermal breakdown of solvents used to dissolve flavorings in e-liquids. And older, dirtier e-cigs generate more of these toxicants, study shows.