Vaping might feel safer than smoking but whats really happening inside our lungs?, The EVALUATE study led by the @unibirmingham will be the first to track ex smokers over a whole year to uncover 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 Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine What don't we know about vaping? Research!America