Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition 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 How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC