Through the three valves in front of it fed athletes breathed air. With the help of the valve, you can choose the amount of oxygen and air density and thus demands a sporting activity.
Climbers, complex athletes or fans of combat sports have been a really long time based on the high capacity of their lungs. To effectively practice and improve their performance training using masks which demonstrably increase the production of EPO hormone, which increases the amount of red blood cells and hemoglobin in blood. It then supplies more oxygen to the lungs, muscles and vital organs. Athletes and their performances can move to a higher level.
Practice mask second generation compared to the first reduced and become more practical and functional than before. With three valves in front of the athletes dosed inhaled air. With the help of the valve can select the amount of oxygen and air density, and thus the intensity of a sporting activities. Sidewall mask is brought out of neoprene. This makes it very comfortable to wear. If necessary, you can buy covers in different colors.
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