Complete Guide to Secondhand Vaping Devices Vape Direct Secondhand smoke and secondhand aerosol How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA 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.