The Official Bas Rutten O2 Trainer

I bought the Bas Rutten O2 trainer instead of the high altitude trainer. I am very impressed! This O2 trainer is very high quality. The unit is made of a high grade polymer coated in a biodegradable rubber housing. The mouthpiece is sort of a snorkel or scuba design and is very durable. There are two ways to use the O2 trainer: with your workout or with breathing exercises. The trainer has an intake on the right and an expeller on the left. The intake can be adjusted with different size diaphragm screens. Workout screens are 14mm through 5mm; breathing exercise screens are 4mm through 1mm (very challenging). Bas has an online tutorial on his website that explains everything about the trainer: how to change the screens, what workouts to do when using the trainer, ect. This is the only trainer I have found that works your diaphragm as well as increasing your lung capacity and anaerobic endurance. The entire case is less than half the size of a high altitude training mask and fits nicely in a book bag or gym bag. The shipping is very prompt; I had it in 4 days. Deserves six stars but I can give it only five!

i started using the O2 trainer and i love it! the multiple screens allow for even the most out of shape person take advantage of it. i started using it a week ago and i can already notice a huge difference with my lung capacity while i run without the trainer.

i would recommend this product to anybody!

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Have been using the o2 trainer and it has been great to use, noticed after first week huge improvement in my cardio that now when I do physical labor in the oilfield I do not feel as winded. Heard Mr. Rutten discuss his product on Joes podcast when he was on and thinking of making it. Just made me eager to try it out, after hearing of his asthma attacks and knowing people with similar, but not as bad conditions, knew that he put alot of thought into his product. Great guy looking forward to Here Comes The Boom and watching Inside MMA. Much love and respect for Mr. Rutten. powerful

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This item was for my fiancé. He loves it ad uses it every time he works out. His only complaint is that there is so much excess spit that accumulates in the mouthpiece. Tilting your head up or down slightly will cause it to drip down or go right back into your mouth. Gross.

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Got the product on time and had a small problem. I sent an e-mail and recieved a call from the man himself ( Bas ) telling me he was fixing the problem. What do ya say about that kind of customer support!!