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 Tobacco Smoke, Vaping, and Asthma AAFA.org News Is Second Hand Vape Smoke Harmful? Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine In secondhand vape, scientists smell risk American Heart Association