Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Symptoms Of Second hand Vape Smoke Secondhand smoke and secondhand aerosol Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to