Is Second Hand Vape Smoke Harmful Smoke Harmful Can Breathing In Secondhand Vape Cause Your Hemoglobin Is passive vaping a hidden risk to the public? Here's what the experts know so far ABC News 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 e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN