Secondhand smoke and secondhand aerosol 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 exposure to vaping can cause serious respiratory issues study The Jerusalem Post Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN