The Department of Physiology (PFT Laboratory) is equipped with computerised complete pulmonary functions test machine for spirometry, lung volume and diffusion tests; portable spirometer, respirometer, Respiratory pressure meter, nebulizers etc. In order to avoid contamination of spirometry with M. Tuberculosis, the department is equipped with a separate spirometer for tuberculosis patients. The department is also equipped with body plethysmograph and oscilloscope to carry out airway resistance and conductance studies. Bronchial provocation tests can also be done in the laboratory. 

The department assists surgical unit in preoperative assessment of the patients. The patients from OPD are evaluated for confirmation of diagnosis of respiratory diseases, assessment of severity and response of treatment. Department is actively participating in the research activities of the Institute and has contributed research papers for publications also. Since 2005 onwards Dr Rupak Singla, Incharge, PFT Laboratory,has been regularly participating as faculty in the preconference PFT Workshops in the National Conference of TB and Chest diseases (NAPCON)and NATCON held once a year.  

The Department has been teaching and training the doctors and the staff of the Institute in the diagnostic and therapeutic evaluation of pulmonary function tests in various respiratory disorders. They include the postgraduate DNB students, senior residents and the other doctors and staff of the Institute. Department carries out regular teaching classes for Diploma and MD students of VPCI, MD (General medicine) and DM (Respiratory and critical care medicine) students of AIIMS and DTCD students of VPCI. Lectures and journal clubs are organized for the residents as per their academic schedule to cover the subject in the teaching curriculum.    

The Department has also conducted hands on workshop for post graduate students of North India and Delhi.     

Equipments: The PFT Laboratory is equipped with following equipments:-   

1. Computerized complete pulmonary Function test machine for spirometry, static lung volume and diffusion capacity measurements.
2. Body Plethysmography
3. Portable spirometer for sputum positive patients
4. Equipment for measurement of MIP and MEP
5. ECG machine
6. Respirometer
7. Other minor equipments