Professor William Man is a consultant chest physician based at Harefield Hospital and reader in respiratory medicine at the National Heart and Lung Institute, Imperial College London. Professor William Man qualified with distinction honors at Imperial College London in 1997 and went on to train in respiratory and general internal medicine at major London teaching hospitals, including Hammersmith, St Mary’s, and Royal Brompton hospitals. He received his PhD in 2007 and Fellowship of the Royal College of Physicians (FRCP) in 2013. He is based primarily at Harefield Hospital and leads the respiratory medicine department, as well as the sleep, COPD, and ambulatory respiratory services (incorporating pulmonary rehabilitation, home oxygen, and community diagnostics). He has also served on the British Thoracic Society specialist advisory groups for COPD and obstructive sleep apnoea.