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 Secondhand Smoke Second hand E cigarette Vapour Increases Risk Of Poor Respiratory Health Study Finds Cigarette Smoke Detector Secondhand Vaping Poses Hazard to Children Clinical Advisor Second hand smoke is highly toxic. Here's what happens when pregnant women and their babies are exposed to second hand smoke.