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 If someone smokes outside, do they bring thirdhand smoke indoors with them? Thirdhand Smoke Resource Center Is Secondhand Vape Smoke Bad for You? The Truth on the Trend Molekule Secondhand Vape Smoke Effects Vaping Produces Far Less Second Hand Nicotine Than Smoking