The aim of this study was to determine the effect of Bubble-PEP device compared to ACBT in asthmatic patients. This study will be Randomized Clinical trial, Subject diagnosed with asthma meeting predetermined inclusion and exclusion criteria and will be divided into two groups. The baseline treatment for both groups would be diaphragmatic breathing exercises. While group A will be treated with ACBT and group B will be treated with bubble-PEP device. Each subject will receive 18 sessions with 3 treatments per week. Post treatment values will be recorded after the session and recorded values will be analyzed using SPSS 25

