•Inhalation therapy, depending on the medication used, will reduce the viscosity of secretions and promotes the action of cilia. This will promote gas exchange in the aveoli.
•Inhalation therapy can also dilate the airway and reduce inflammation.
•The susceptibility to pneumonia is afffected by the viscosity of mucus gland secretions in the respiratory tract.
•Inhalation therapy does not strengthen the diaphragm or increase the use of intercostal muscles.