Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London City Did you know that Secondhand vape and cigarette smoke have similar nicotine levels? For tips on how to protect yourself and your loved ones from toxic secondhand smoke please visit Effect of second hand fumes from vaping on young lungs 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