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. Secondhand Vape Plumes Could Form Lung damaging Radicals Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects Second Hand Vaping: Minimal Impact Compared to Smoking How secondhand smoke, thirdhand smoke & vaping affects kids