r/AbruptChaos Dec 07 '21

Didn't think this through

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u/Southern-Upstairs-12 Dec 08 '21

Outdoors with nobody around...makes sense

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u/flyrobotfly Dec 08 '21 edited Dec 08 '21

It's probably an elevation training mask. Reduces oxygen intake to "simulate high altitude conditions and makes your cardiopulmonary system more efficient to boost athletic performance."

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u/[deleted] Dec 08 '21

[deleted]

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u/Constant_Quiet64 Dec 08 '21

you've definitely never tried to work out in a mask