Bas Rutten -O2Trainer Breathing Respiratory Training Device for Gym Workout, Running, Yoga, Boxing, Breather Muscle Trainer for Lung Exerciser, Lung Expander (1Breather and 14 Caps)

So far I'm a big fan of this. I have yet to use it during a physical activity but have been using with the standard stationary breathing exercises and have noticed a big improvement in my breathing stamina. I was a smoker for years and really did a number on my stamina. I quit 3 years ago and just thought I did irreversible damage and I would just have to deal with my breathing the way it was. This has definitely helped to prove me wrong. I recommend this to anyone that has quit smoking and is looking to build back up their stamina.

This is an incredible product.10 stars if I could!This helped with an old martial injury: scars in the lungs.I spent years in agony. Limited by my lungs being filled with calcified tissue.This tool strengthened my diaphragm. Opened up the remainder of my functioning lungs.Expanded my ability for long term cardio. Months later, I am a leaner man.Now, I use this o2 trainer for meditation and deep "tummo" practice.There is nothing quite like this tool, if you use it properly.Thank you, Bas.I write this with tears in my eyes. $50 and my life was forever improved.Thank you.

After about 3 miles, my back doesn't like running so much so I wanted to use this to maximize my cardio within 1.5-2 miles. It's amazing. I feel like it's working.Before I work out with it, I'll throw the smallest one on while I drive to the gym and change. Sometimes I'll wear it around the house while I'm cleaning and stuff. The nose piece expands slightly but it's really not that big of a deal.

Anytime you go for a fitness 'gadget' you're kind of taking a gamble. But I was intrigued enough about the idea and put my faith in Bas and, so far, I haven't been let down.The trainer itself is well made, better actually than it looks in the photos/videos. The rubber is soft and very slightly tacky, feels like some sort of silicon, not old school rubber or even latex. This makes it very comfy to hold and it's pretty taste neutral. You don't feel like you're chewing on a tire.I haven't been using it long enough to speak to Bas's claims of curing asthma, but it has definitely increased the intensity of my conditioning workouts. It seems to encourage and even enforce 'mechanical breathing', the deep and forceful belly breathing you see from Russian kettlebell men or someone working long hours with a sledgehammer. For me that meant that, even though it was harder to breathe, I felt more engaged and therefore more powerful. I feel like I'm getting more results out of a shorter workout, and I actually feel better after the workout. That's obviously subjective and your mileage may vary.As for the drool in other reviews...well, you're gonna have a little drool one way or the other. I hold it fairly loosely in my teeth, but high up on the 'bit' so the device is close to my lips. With this method I haven't had much 'leakage', but when you take it out it's going to be dripping with spit anyway. I figure if you're worried about looking stupid from drool, you'd be worried about looking stupid with a big blue piece of rubber sticking out of your gob. The thing works. If you're a drooler, grab a spit towel and just keep working out.

I have been using this for about 8 weeks now. I am definitely breathing better than I was. Does it make your red blood cell count go up like being at altitude, NO!! BUT from my personal experience it DOES strengthen the apparatus which makes the act of respiration possible.

I had a traumatic experience and injured my diaphragm in 2010 which caused a hiatal hernia. I purchased this product in 2016 and used while running on my treadmill for 1/2 hr intervals. Within a few weeks I could feel a dramatic shift in the strength of the diaphragm muscle. For years I suffered with pain and could not do any type of bending while practicing Yoga. Now I feel almost no pain while bending and feel like the diaphragm muscle is much stronger. With continued use I know the problem will resolve itself completely in due time.

Possibly, what is for sure is that Bas Rutten is a savage and if he recommends this device then it must be good. Heard about this gadget on the Powerful JRE and don't regret buying it AT ALL.It's really fun to use, makes life in general more challenging. I have been using it merely for a couple of days and already noticed the improvements. Thanks, Bas!

Like other have said it does dry the mouth out but that’s to be expected. What also has happened is that my lungs don’t burn as much running after I use the breathing solutions for 30 inhales in fast succession with the limit at 11 or higher. I find that my wind doesn’t give out and I can push further harder for longer. I’m active duty military and I have to maintain a 16 minute two mile run and I have struggled to meet that time for a while but now I have cut my time by about 30 seconds in 3 weeks and it m working to hit 13 minutes as my goal.

This device started of great but isn't built to last, there is a known leaking issue and nothing can be done.Before you spend your hard earned money do some research first, i am gutted this has only lasted 12 months i really expected better.

Littrlaly the best thing I have ever bought

Havent used for long, during use you can feel it working, muscles twitching in your back and diaphragm contracting, immediately after use, breathing is easier.

Thank you very much!

This is fcukin awesome Bas is the man in and out of the ring

This O2 trainer is great..!! its been 3.5 weeks, using it daily & noticed results within the first 3 days... you will notice much better endurance & just plain better breathing, doing the 30 reps 2x daily under 4mins. (cap #10-#14).. also the top 2 'diaphragm' abs are more pronounced, just after the 3 weeks of use... I also, use it now on walks daily and I have much better control of my breath & diaphragm muscles.... I love this thing and can see many uses for many people/patients w 'breathing' problems and also professionals - whether athletes or firefighters, this thing is useful and actually works for what it is intended... much better than other 'training masks' that I've tried to use and for just $25 now.. you gotta grab an O2 trainer..!!

As described and arrived as indicated by the seller. Works well. Nose clip is essentially useless once you start sweating heavily so if you plan to use it for training maybe count on getting a different clip. I'm a mouth breather and usually can't breathe through my nose once HR is up over 140 bpm so it is of no consequence to me. If used for extended time i.e. 30 mins and above like for a run, you might find your mouth drys out a bit. One good thing is there is no chafe like some of the full face masks. You'll get some weird looks if you wear it in public as it looks strange and at exertion the air inhale and exhale is loud (kinda like a muted whistle) as you work your way up the scale. If the clip was useful and it didn't whistle I'd give it a 5/5.

Great product to train your lungs. Just know that it drys out your mouth while using it for long runs and also please include an extra nose clip since it very small and easy to loose.

I’ve used this product 8-10 times and it’s really working. I’ve only used the 11-14sizes (smaller hole) as breath training but not the larger diameter. High quality and does a good job.

This has improve my pulmonary capacity from 0 to 10 in a couple of months, however the cap that stop the air from entering from my mouth got torn and now there is no use of this piece. How can I get a replace cap of this part please?

Turning it back into the swing of things but I heard you could Art's TV use valve number 13 to something

Well made, but effectiveness is up for debate.

Not using it nearly enough

Nach einiger Eingewöhnung und persönlicher Tests kommen wir mit dem O2 Trainer nun sehr gut zurecht.Erste Trainingserfolge sind auch schon erreicht!Sehr zu empfehlen wenn man selbst die Erfahrung hat, dass die Luft bei Wettkämpfen zuerst schlapp macht!!!

Great product working great