Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Is Vape Smoke Bad For Second Hand Evidence Mounts About the Health Impact of Second Hand Vaping Breathing in someone else's smoke or vape isn't harmless. Secondhand smoke exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de 2nd Hand Vape Smoke Effects Secondhand smoke and secondhand aerosol