Mr P
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it's called Elevation Training Mask I thought it was weird I mean he looked lean at 160 pounds, but I wouldn't wear this at the gym I guess I'm old fashion lol
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this is what I found in google
helps! By condition the lungs and creating pulmonary resistance, your diaphragm is strengthened, surface area and elasticity in the alveoli is increased. Elevation Training Mask will help get your breathing under control and help with lung stamina, increase lung capacity, oxygen efficiency and increase overall mental focus. Training Mask can be used to make you become a better athlete in all sports and daily living.
,
this is what I found in google
helps! By condition the lungs and creating pulmonary resistance, your diaphragm is strengthened, surface area and elasticity in the alveoli is increased. Elevation Training Mask will help get your breathing under control and help with lung stamina, increase lung capacity, oxygen efficiency and increase overall mental focus. Training Mask can be used to make you become a better athlete in all sports and daily living.