Does Vaping Cause Secondhand Smoke? Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Secondhand smoke and secondhand aerosol Breathing in someone else's smoke or vape isn't harmless. Secondhand exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de otra While vaping is not risk free, it is less harmful than tobacco Our World in Data