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.