Respiratory physical therapy is both art and science. Breathing is unique. Most of us give it little thought, it is usually automatic or sometimes voluntary and is preserved in unconsciousness. It is associated with our respiratory system of remarkable ingenuity. The respiratory system is involved in the pumping of gas into the lungs, gas exchange from lungs to tissue cells, acid- base balance, metabolism and defence of the body against the elements. An imbalance in above said leads to various respiratory ailments.