The multiple-breath washout (MBW) is a lung function test that measures the degree of ventilation inhomogeneity (VI). The test is used to identify small airway impairment in patients with lung diseases like cystic fibrosis. However. the physical and physiological factors that influence the test outcomes and differentiate health from disease are not well understood. https://allfixelectricales.shop/product-category/fridge-door-hinge/