Secondhand Smoke vs Vape: What the Science Says Passive vapingtime we see it like secondhand smoke and stand up for the right to clean air Signs of the Times 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 In secondhand vape, scientists smell risk American Heart Association Secondhand smoke and vape aerosol are harmful to everyone, especially if you have asthma. As a tenant, protect your space by urging your building to go smoke free today. Learn more at TheSameBreathDE.com.