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-   -   Oyxgen Dep. Mask (https://board.crossfit.com/showthread.php?t=75865)

Georgia Guy 06-05-2012 06:37 PM

Oyxgen Dep. Mask
 
I know this is an old topic, but how long do you have to use an oxygen deprivation training mask before you start to see the benefits? I have been reading up on them and the reviews are mixed. Some say they work some say they donít, yet those that say they work donít give a timeline.


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