One of the people at my gym wears this while working out! He gets all winded on the treadmill and you can hear a weird wheezing sound through the mask! I guess it's all part of an obsession to stay well during cold & flu season?? :-0
I believe it's supposed to simulate breathing ina high altitude to further wind you and test your endurance.
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One of the people at my gym wears this while working out! He gets all winded on the treadmill and you can hear a weird wheezing sound through the mask! I guess it's all part of an obsession to stay well during cold & flu season?? :-0
I believe it's supposed to simulate breathing ina high altitude to further wind you and test your endurance.
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