High Altitude Training Mask Performance Breathing Trainer Workout Men Mask, 24 Level Resistance Barrier Double-effect Improves Lung Capacity and Endurance

Challenge Your Limits : Our training mask has the dual functions of oxygen blocking and anti-haze, which can enhance your physical fitness and exercise tolerance by improving your breathing power, flexibility and endurance Boost Your Lung Capacity & Endurance: By restriction oxygen and create high altitude environment, Our altitude Mask will force you to take full and deepest breaths, so the breaths muscle is highly excised & Your Lung and respiratory system performance will be improved. Benefits: Wearing this sports mask and exercising moderately, the increase in growth hormone will help you burn more fat, strengthen muscles, and recover faster after high-intensity training. Altitude Training: This high-altitude mask simulates high-altitude conditions to improve lung capacity and endurance Take your fitness, sport and game to the next level by adding the cardio mask into your workout routine.we adopt the style of machine armour to make its appearance more cool.More perfect design