Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Secondhand vape exposure regulation of CFTR and immune function in cystic fibrosis American Journal of Physiology Lung Cellular and Molecular Physiology American Physiological Society While early research suggests it may not be as dangerous as secondhand smoking, it's still not harmless, experts say. https: www.wate.com news does vaping cause secondhand smoke doctors explain the side effects ?utm_medium=social&utm_source First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me