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This is the Go2 Endurance Trainer: a workout device that improves breathing and increases oxygen flow. It is comfortable to wear for athletes with or without braces. It is based on the Positive End Expiratory Pressure principle. By using it, you will be able to avoid shortness of breath at higher elevations.
This device increases your VO2 max and decreases your heart rate. You can find out more about it here.
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