Symptoms Of Second Hand Vape Smoke Secondhand smoke is harmful to those around you, putting them Secondhand Smoke vs Vape: What the Science Says What Chemicals Are Present in Secondhand Vape Emissions? Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Does Vaping Cause Secondhand Smoke? 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