E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? Smoking, vaping & pregnancy: in pictures Raising Children Network E Cigs and Second Hand Vaping: Dangers and Protections Secondhand vape exposure detectable in children's saliva, breath Contemporary Pediatrics 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.