Abstract: Compositions and methods for treating or preventing respiratory disorders and airway inflammation in an animal are disclosed. In one embodiment, the respiratory disorder is asthma. In one embodiment, the airway inflammation is asthma-related. In one embodiment, the respiratory disorder is cystic fibrosis. The method comprises administering an electrolyzed saline solution to the animal. In one embodiment, the electrolyzed saline solution comprises about 0.1 ppm to about 100 ppm ozone and one or more active species selected from the group consisting of: about 5 ppm to about 300 ppm of at least one active chlorine species, about 0.1 ppm to about 300 ppm of at least one active oxygen species, about 5 ppm to about 300 ppm active hydrogen species, and combinations thereof. A mouse model of cystic fibrosis and methods of screening pharmaceutical agents are also provided.