E Cigs and Second Hand Vaping: Dangers and Protections 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 Is It Dangerous To Breathe In Secondhand Vaping Smoke? Passive Vaping Explained Health: In secondhand vape, scientists smell risk Journal Courier Juul study shows secondhand vaping emissions are less toxic than cigarette smoke The health risks of secondhand smoke are widely understood. But what about secondhand vaping?