Secondhand vape exposure regulation of CFTR and immune function in cystic fibrosis American Journal of Physiology Lung Cellular and Molecular Physiology American Physiological Society How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Secondhand smoke from vaping could be harmful to children: study ABC13 Houston Study finds secondhand smoke may be source of lead exposure in children, adolescents Vital Record