Dr. Kumaresh Raj A/l Lachmanan is a distinguished Consultant Pulmonologist with extensive expertise in Respiratory Medicine and pulmonary physiology. He is renowned for his comprehensive approach to diagnosing and managing complex respiratory conditions, including asthma, COPD, pneumonia, tuberculosis, and lung fibrosis. A pioneer in pulmonary diagnostics, he was instrumental in establishing new Pulmonary Function Testing (PFTs) and Cardiopulmonary Testing (CPET) units at Hospital Raja Permaisuri Bainun in 2016. His commitment to advancing the field is further demonstrated by his role in medical education, lecturing on pulmonary function tests for fellows.