Secondhand vape exposure: Risks and side effects Secondhand nicotine vaping at home and respiratory symptoms in young adults Thorax 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 E Cigs and Second Hand Vaping: Dangers and Protections Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA