Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center 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. In secondhand vape, scientists smell risk American Heart Association Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek 5 Vaping Facts You Need to Know Johns Hopkins Medicine