Introduction Lung diseases, including chronic obstructive pulmonary disease (COPD), asthma, lung cancer, and pulmonary fibrosis, are among the leading causes of morbidity and mortality globally. These conditions not only pose significant health challenges but also result in substantial economic costs. The financial burden associated with lung diseases affects patients, their families, and national healthcare systems, creating a ripple effect across economies. Understanding the economics of lung disease is crucial for developing strategies to mitigate these costs and improve patient outcomes.   Financial Impact on Patients The financial burden of lung disease on patients is multifaceted, encompassing direct medical costs, indirect…