Just got the product but after only using it once I can tell it's going to be a great tool. Really makes you concentrate on proper breathing and feels comfortable to wear and easy to adjust. Nice.
This is one of the better high altitude training masks. Also a great price for a quality product. These masks do what they are supposed to and then some.
I used to make fun of people for wearing these until I actually tried using one and boy was I wrong about them. I compete in triathlons all the time, I recently started training with this High Altitude Training Mask running my usual workouts and found myself really struggling to finish them as fast as I normally do but as soon after a week of training in the mask all my times had greatly improved! I couldn't be happier with this purchase.
I was thinking of ordering a training mask for some time, I wanted to use this when on my trainer for cycling. There are a few adjustments for breathing, but really only the highest two settings are effective. I wish that the strap had more adjustments as i have a small head and have and make small adjustments to get it to fit. Comfortable while riding, and is effective.
I used this religiously for 2 weeks during my workouts and also during rest periods - alternating the intensity in both scenarios (during rest periods, it started as 10 minutes at lowest setting, then 7 at next lowest, then 5 at second highest, then 3 at highest, and repeat 3x). I experienced a definite change in my ability to work out with more intensity (with or without the mask - without the mask, I was able to increase my speed by 20% and maintain it for 10-15% longer than before, with the mask I managed to get back to my pre-mask speed and length within 4-5 wearings) and just a better ability to breathe, period.