Many people assume vaping is harmless to bystanders, but secondhand aerosol can contain ultrafine particles and chemical residues. Researchers are examining how exposure may affect airways and overall health, especially for children Can you get second hand smoke from vape? Vaping Post Effect of second hand fumes from vaping on young lungs Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Secondhand Vape Exposure: Effects, Who's at Risk, and More Secondhand smoke and secondhand aerosol