Orygen Dual Valve Sport Enables patients to train the inspiratory and expiratory muscles simultaneously and to adjust the levels independently and the capabilities are the most powerful in the...
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Chronic Obstructive Plmonary Disease (COPD) is a lifelong lung condition. It often develops in individuals who have long-term exposure to airborne irritants....
You can become a better scuba diver if you can control your breathing underwater. Breathing interconnects with buoyancy control and propulsion trim....