Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Secondhand vape plumes could form lung damaging radicals American Chemical Society Second Hand Vaping Vape Smoke Free How secondhand smoke, thirdhand smoke & vaping affects kids 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.