Training Mask helps athletes to increase the pulmonary resistance training your body with little deficiency of oxygen‎.‎ The mask helps athletes very much the exercises and efforts are exposed to constantemente of high level of intensity‎.‎ The special filter of the mask after adjustment leaves only a certain amount of daily air‎.‎ The athletes in this case aumentera the frequency and intensity of the breaths act directly on the affected muscles‎.‎