Can Vaping Cause Lung Cancer? Here's What We Know. I'm confused : r ENGLISH What harm does second hand fumes from vaping cause to young lungs? Medical experts want to know ABC7 San Francisco Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign. Electronic Cigarettes American Nonsmokers' Rights Foundation no smoke .org 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