Elevation Training Mask helps condition the lungs by creating pulmonary resistance to strengthen the diaphragm and increase surface area and elasticity in the alveoli.Causes lungs to work nine times harder to increase capacity and improve anaerobic thresholdAids controlled breathing and lung stamina while running, cycling and crosstrainingRegulates oxygen flow and thins air to simulate training at high altitudesCreates more efficient gas exchange and improves energy productionEnhances mental and physical stamina