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Train your breathing while you train your muscles
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Was $59.95 NOW $49.95 (20% OFF FOR ME) and for USA customers FREE delivery
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DESIGNED FOR EVERYONE AT ANY PERFORMANCE LEVEL!
  •  Fitness Training - Stay Ahead of the Competition!
  •  Health - Breathe Better For A Healthy Life! 
  •  MMA - Fuel Up On Stamina!
  •  Fitness Training - Stay Ahead of the Competition!
  •  Health - Breathe Better For A Healthy Life! 
  •  MMA - Fuel Up On Stamina!
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TESTIMONIAL VIDEOS
WRITTEN TESTIMONIALS
"This has helped my fitness to no end 10/10 would recommend very sturdy and adaptable to all fitness levels."
- Josef Harris
"This thing is rough, working out with an o2 trainer, is not only good for your stamina, but it also helps your mental grit."
- Al
"I have used the O2 Trainer since it’s release and am quite impressed with it. I use it for Krav Maga and Law Enforcement training. It has improved my breathing and overall training."
- Ken Bak
One thing I can state is that with the first run of statistics, the ventilation improved significantly. Your original claims of increased ventilatory muscles were correct. These young ladies all improved their volume of air they could ventilate. We will continue with blood hematocrit (increased red blood cells) and other measures and I will report them as soon as I have them.

Frank B. Wyatt,Ed.D., Associate Professor Department of Athletic Training & Exercise Physiology
Dear Bas Rutten,
I wanted to tell you how impressed I am with your O₂ Trainer. Since purchasing it, I have used it with my Krav Maga training. I have also used it with the Bas Rutten MMA Workout. What a challenging workout when combined with the O₂ Trainer!! I have noticed remarkable gains in my stamina in just a short time with the O₂ Trainer. This device will definitely be an item that I will train with for years to come.
Thanks for making such an excellent product!

Kenneth B.
For the last 4 to 5 weeks before the use of the trainer I lost 1 lbs. The week that I have implemented the O2 Trainer I lost 3 lbs. I noticed more calories being burned, higher intensity on workouts, more sweat, and longer periods for heart rate to come back down. After creating a base line and looking at my numbers doing the same workouts I do see an increase of calories burned and so on. I am down to 209lbs from last weeks weigh in. Only 10lbs more to break under 200 again.

Shawn M., San Angelo, TX
I recently used the Bas Rutten O₂ Trainer during two workouts. On the 3rd day, I trained without the device. To my surprise, my breathing seemed more relaxed and efficient. I was not looking for this to happen, and I was really surprised to experience positive results after only two days. As a result, I had to ask myself how this could happen. After some serious thought, I came to the following conclusion…
For me, using the O₂ Trainer for those first two workouts prompted me to breath deeper during the 3rd workout when I did not use the device. It was like having a coach make an adjustment in my running form so that my technique could be improved and my training could be a little more efficient.
Furthermore, the O₂ Trainer was comfortable and simple to use. I also know that Bas designed it so that it will be easy to adjust as I become even more conditioned. So, now I look forward to continuing to use the O₂ Trainer – and seeing what other surprises its use will have for my training.

George Ryan, SWAT Defensive Tactics Instructor
Like I had mentioned I’m an cyclist racer and have been competing for over 20 yrs .. And as I have gotten older I know we loose power .. I’m 47 and I climb a hill today .. Latigo canyon and I have to say the product I’ve already shaved 2 mins from climbing today last week was way slower .. So does your product work -I have to say Yes !! My breathing is way better and I breath is not labered in any way. I’ve been doing the exersizes everyday and I use it only on my Nordic track . Great product!! I will keep you posted I’m Racing a big race this weekend so this will be the big test for me and how this product really works .. ! Very happy so far !! ,

David B., Cyclist Racer

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