Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand vape exposure regulation of CFTR and immune function in cystic fibrosis American Journal of Physiology Lung Cellular and Molecular Physiology American Physiological Society Second hand vape smoke linked to more asthma symptoms in kids Effect of second hand fumes from vaping on young lungs We protect kids from cigarette smokelet's do the same with vaping. Secondhand vape isn't harmless, here is what parents need to know: https: www.undo.org disease secondhand vape