I have been using the Pr02 for almost 5 years. My initial reasons for using it were to help with my breathing capacity during exertion at altitude, specifically a fastpacking in the Himalayas. I have always had issued with altitude and after using the Pr02 it significantly helped me to navigate at the 16,000 foot level.

I am also a Masters athlete consistently using the Pr02 at least 2 to 3 times a week to aid in my running performance. I compete in ultramarathons and having the ability to enhance my lung capacity has benefited me tremendously.

I highly recommend using the Pr02 as another untapped resource for performance. Put it into your weekly workout plan and watch as you uncover some hidden benefits!!!