Secondhand vape exposure: Risks and side effects How Long Can You Smell Vape Smoke On Someone How to Detect if Someone is Vaping in Your Home: Key Signs to Watch How Smoking vs Vaping Affects Your Lungs You Must See This ! ! What Does a Vape Smell Like? How to Tell if Someone is Vaping in Your House: Hidden Signs 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.