Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London 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 e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Does Vaping Cause Secondhand Smoke?