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. Secondhand smoke and vape can trigger your child's asthma attacks. Smoking and vaping are unhealthy for everyone but especially harmful for people with asthma. Whether at home, in the car, or Harmful When Pregnant Second hand Vaping Exposure Very Low Compared To Second hand Smoking A Thing Secondhand Smoke and Electronic Cigarette Aerosols US EPA