Should I Be Concerned About Secondhand Vaping? Passive vaping time we see it like secondhand smoke and stand up for the right to clean air Secondhand smoke and secondhand aerosol 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 Secondhand Smoke vs Vape: What the Science Says 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.