Restores and maintains lung capacity in post operativepatients by slow, synchronized deep breathing.Allows visual calibration and estimation of the patientsprogress.Strengthens primary and accessory respiratory muscles and conditions them.Improves cardio-pulmonary status of the patient, enhancing the overall fitness and wellbeing.Improves oxygenation of blood, reduces fat levels by burning calories.Assists pulmonary rehabilitation in patients with COPD, improves the quality of their life.Sustained deep breathing has been shown to relieve anxiety and fight stress.Sterile Disposable Individual Printed Box Packing.