Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California 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 Secondhand Smoke and Electronic Cigarette Aerosols US EPA Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Effect of second hand fumes from vaping on young lungs 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.