
Background of the Study: Acapella an oscillatory positive expiratory pressure device used for the clearance of secretions in the COPD patients. It sends the vibratory signals into the lungs, shaking the mucus plugs that the patient cough and improve cough effectiveness and push out secretion. The diaphragm is the most efficient muscle of breathing and the diaphragmatic breathing helps to strengthen the diaphragm, decrease the work of breathing, useless effort and energy to breathe. Methodology: It is an experimental and comparative study done at ACS MEDICAL HOSPITAL using 20 subjects of age group 40-60years only male sex included for about 8 weeks for those who had RR>30respiratory fatigue or failure. Materials Used couch, chair, foot stool, stopwatch, acapela device. Procedure: 20 subjects were selected randomly by lottery method. Chits odd number in group and even number in group B. Group A- Acapella device Group B-Diaphragmatic breathing. Outcome Measures: Pulmonary function test (PFT) Result: The result was based on the statistical analysis of data collected and it revealed that both the groups showed improvement while group A comparatively better than group B on the basis of PFT.