Pneumonia is the inflammation of lung parenchyma involving lungs alveoli and is a leading cause of lower respiratory tract infections and deaths around the globe and the number rises greatly after the Covid-19 pandemic. The Symptoms of Pneumonia is cough, fever, dyspnea, myalgia, altered blood gas ratio, and mental alteration. Treatment and management of this disease varies from patient to patient according to its severity stages .Blow Bottle supports the patient to remove excess secretions to increase pressure in the airways. This opens up the passageways in bronchioles, air behind the mucus push it into the larger airways .It will be easy to remove mucus by coughing or huffing. Hypoximia is a clinical feature of Pneumonia that requires a fraction of inspired oxygen FiO2 of 0.50 to maintain an oxygen saturation of 92%. This research of randomized clinical trial will check the comparative effects of Blow Bottle Technique and Acapella along with Diaphragmatic Breathing in patients with Pneumonia by taking sample of 50 patients through Non Probability convenience sampling and randomly allocating them to two groups A and B out of which A will receive both Blow Bottle and Diaphragmatic Breathing training, B will receive Acapella with Diaphragmatic Breathing upto the duration of 3 days per week for upto 4 weeks. Pre and post training outcomes of pulmonary function will be measured through BCSS ,Oxygen Saturation through Pulse Oximeter, and disease severity through Pneumonia severity index, and Who QOL questionnaire. The data will be analyzed through SPSS 21