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. Tobacco Smoke, Vaping, and Asthma AAFA.org Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC7 Chicago Secondhand vape exposure detectable in children's saliva, breath Contemporary Pediatrics