Health experts say not to 'vape' around children, because the secondhand aerosol (it isn't vapor) from e cigs isn't safe for them Kentucky Health News Vaping Indoors and How it Contributes to Sick Home Syndrome Bactronix 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