Features: - Made of polyester diving fabric and composite polypropylene filter cover - Dustproof, windproof, waterproof, anti-fog and anti-haze - features 6 workout intensity levels at the turn of a dial, improve airflow performance on exhalation - Can effectively filter the exhaust and allergens in the air - Prevent dust, bacteria and other harmful substances Package Contents: 1 x Half Face Mask Many celebrities with the same paragraph, essential fitness mask! This is a simulation of high altitude training mask, appears to be a self-absurd behavior, in fact, is an artifact of training cardiopulmonary function. Provide some air resistance, increase the obstruction of breathing, reduce oxygen intake, so as to achieve cardiorespiratory exercise, improve lung capacity and blood oxygen carrying capacity, many celebrities, NBA players, fitness enthusiasts have to bring this mask training! ! ! Popular level As we all know, the United States is the most developed country in the world of professional sports and competitive sports. Its ball games are very professional. Among them, it is famous for its four big balls: basketball, baseball, rugby and hockey. Now these four stars are both star athletes Use this product for routine training.
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