The department of Pulmonary Medicine at Atreya provides world-class services in the diagnosis and management of various respiratory diseases and sleep disorders like asthma, COPD, pneumonia, interstitial lung disease, lung cancer, tuberculosis and sleep-related breathing disorders. The department boasts of comprehensive lung function testing and fully equipped bronchoscopy suite with C-arm facility where various complex endobronchial diagnostic and therapeutic procedures are performed. Pulmonary function tests (PFTs) are noninvasive tests that show how well the lungs are working is done here.