Common causes of feeling short of breath are: lung problems, such as asthma and chronic obstructive pulmonary disease (COPD) heart problems, such as a cardiovascular disease and heart failure. Infections in the airways, such as croup, bronchitis, pneumonia, COVID-19, the flu and even a cold.The problem of screening a lung is a major issue in the medical area. One of the main goals of this research is to analyze the breathing disorder on smokers and non smokers using decision tree algorithm. Developing an automatic solution to find the abnormality in lung tissues and to predict about which kind of disorder has been occurred. The aim of this research is to analyze and identify the type of breathing problem in both smokers and non smokers.