Tobacco Smoke, Vaping, and Asthma AAFA.org E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? YouTube Science We know what vaping is, but what's third hand vaping? Third hand vape exposure is exposure to chemical residue left behind from e cigarette aerosols. The residue can deposit on surfaces Secondhand smoke and secondhand aerosol Passive vaping time we see it like secondhand smoke and stand up for the right to clean air Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA