How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center 5 Vaping Facts You Need to Know Johns Hopkins Medicine Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine Effect of second hand fumes from vaping on young lungs Debunking 7 Myths About Secondhand Smoke Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems.