Does Vaping Smell? and How to Tell if Someone Is Vaping Ultra Liquid Labs What Does a Vape Smell Like? 5 Vaping Facts You Need to Know Johns Hopkins Medicine 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. 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