Does Weed Smell When You Vape It? Vaping360 Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department 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. 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. What does the smell of stale tobacco smoke mean? Thirdhand Smoke Resource Center If someone smokes outside, do they bring thirdhand smoke indoors with them? Thirdhand Smoke Resource Center