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. Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Addressing Secondhand Smoke: Tobacco and Cannabis Smoke in Multi Unit Housing It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice