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. Teen Health Info : Vaping everything you need to know How Long Can You Smell Vape Smoke On Someone How to Detect if Someone is Vaping in Your Home: Key Signs to Watch Less Smelly Than Cigarettes but just as Dangerous GKT.com Marijuana and Vaping: Shadowy Past, Dangerous Present The New York Times Secondhand vape exposure: Risks and side effects