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 E Cigarettes (Vapes) Smoking and Tobacco Use CDC Second Hand Vape: Should You Be Worried? Have you heard of Third Hand Smoke , When most people think about the risks of smoking, they picture first or second hand smokethe smoke you inhale or breathe when someone lights up near you. But Children at risk: Emory study uncovers the hidden dangers of secondhand vape exposure