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Hypoxia is a state occurring in humans where there is insufficient oxygen supply to meet demand.
This item is great, it does what it claims, and makes work outs 50x more challenging if you want a bigger challenge in your workout or training I reccomend this item.
Basically, what the mask does is make the muscle in your rib-cage work harder for air, making it much easier to breath in normal conditions.
Great for running and conditioning the lungs as it says especially with the difficulty nozzles. In some areas people can understand the use of this workout device, but in most... Read morePublished 4 months ago by GD
just as another comment pointed out
this is the exact same as an isreal civilian gas mask with stickers on it that costs no more than 30 bucks
this company expects you to... Read more
If you are fit this will give you an edge...if you are not fit this will make you sick. Plain and simple. How do you know if you are fit? If you can run a 1. Read morePublished 18 months ago by Albert
i have both this one and the 2.0 this one made my black out from how intense it is, its incredible i recommend it only for experienced athletes.Published 19 months ago by ricky704
I had to return it because my husband wanted the half mask. But the full mask was exactly as described.Published 20 months ago by Melissa J Roberts
At first I was skeptical. Then I tried it. And all I can say, WOW! I will never go back to grunting loudly. Read morePublished 21 months ago by lexilove
This item is great, it does what it claims, and makes work outs 50x more challenging if you want a bigger challenge in your workout or training I reccomend this item.Published 22 months ago by J
this mask shipped very quickly and am impressed with the shipping quality
its hard to breath through it which is what I expected to start training for high... Read more
This single handedly increased my workout load and helped with my traiing, , , , , , , , , ,Published 23 months ago by Jeffrey Adumuah Parker