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 Are the Risks from Secondhand Vape Smoke? NVB Inc. Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Exposure to secondhand vaping fumes among teens raises concerns UPI.com Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC13 Houston