E Cigarettes & Vaping, Chemical Safety Chemical Insights Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect Vaping: Safer than cigarettes or a new health crisis? Another Gross Reason to Put Down the E Cigarettes American Lung Association About E Cigarettes (Vapes) Smoking and Tobacco Use CDC