Passive vaping time we see it like secondhand smoke and stand up for the right to clean air Secondhand vape plumes could form lung damaging radicals 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 Tobacco Smoke, Vaping, and Asthma AAFA.org