What Does Vaping Do to Your Lungs? Johns Hopkins Medicine What You Should Know about E Cigarettes & Vaping American Lung Association Is Secondhand Vaping Something to be Concerned About? Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN 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. Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice