E Cigs and Second Hand Vaping: Dangers and Protections 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 Myth Buster ~ "Second hand vape smoke" is actually water vapour and is not harmful to other people or the environment. #vape #vaping #vapeuk #ecigerette #smoke #quit Secondhand vape exposure: Risks and side effects