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Overview
  • How are reviewers describing this item?
    good, great and better.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 5859.
  • Previous analysis of this listing was an C grade.
  • Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
  • Our engine has analyzed and discovered that 38.7% of the reviews are reliable.
  • This product had a total of 1,228 reviews as of our last analysis date on Oct 2 2019.
Details

BETA

Most positive reviewquestion

Been helping me with my cardio

Least positive reviewquestion

I like the mask a lot, just as a note there is no real substitute for actual altitude training, stay away if that's what you wa...  Read More

Most authentic reviewquestion

Love it works great

Least authentic reviewquestion

Good


Helpful Insights

BETA

    Posted by a reviewer on Amazon

    Loose valve was replaced immediately.


    Posted by a reviewer on Amazon

    It arrived accordingly with amazons two prime shipping.


    Posted by a reviewer on Amazon

    I know some research says that it may not help at all.


    Posted by a reviewer on Amazon

    You have to work your way up though - start at five minutes then add time.


    Posted by a reviewer on Amazon

    I like the mask a lot, just as a note there is no real substitute for actual altitude training, stay away if that's what you want it for.

Review Count History
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Price History
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