Secondhand Smoke Vermont Department of Health 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 vape exposure: Risks and side effects The risks of first hand and second hand vaping Eoleaf Where is Thirdhand Smoke? Thirdhand Smoke Resource Center Secondhand smoke and secondhand aerosol