Introduction: The evolution of knowledge concerning COPD and its components Emphysema, Chronic bronchitis, and Asthmatic bronchitis covers over 200 years. In the meantime not a single delineation has been established differentiate between these mechanisms. Confusion still persists in this study, we aim to assess using the pulmonary functions tests, and radiological knowledge, whether the phenotypes of COPD - Asthma, can be distinguished or not. This may also lead to identification of risk, early diagnosis, proper prognosis and specific treatment of the patients between chronic bronchitis and Emphysema.