What is the purpose of inhalation therapy?

Inhalation therapy focuses specifically on improving the function of the respiratory system. It involves delivering medication directly to the lungs, allowing for more effective treatment of respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), and pneumonia. By administering medications in this manner, patients can experience faster relief from symptoms, as the medications can work directly on the airways, reducing inflammation and opening up the air passages. This targeted approach helps to restore or improve breathing function, making option B the correct choice.

The other options address different physiological systems; for instance, improving cardiovascular health relates to the circulatory system, aiding digestion pertains to the digestive system, and lowering blood pressure is relevant to cardiovascular health. Each of these functions is important in its respective context but does not relate to inhalation therapy's primary goal.