Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association 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. Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London