More Stamina & Energy
EndurancePro™
Get fitter in just a few days. Join over 12,000 athletes.
Initial results within 72H
Train comfortably from home
30-day money-back guarantee
Free shipping on orders over €45
Is the EndurancePro safe to use?+
JYes! The EndurancePro is made from high-quality, non-toxic materials and is CE-certified. It's purpose-built and easy to clean.
How quickly will I see results?+
Many of our customers report noticeable improvements after just a few training sessions. Of course, results depend on your training routine and may vary.
Who is the EndurancePro suitable for?+
The EndurancePro is for anyone looking to actively improve their fitness. Whether you're a beginner or an experienced athlete, the adjustable resistance makes the EndurancePro suitable for everyone!
What if I'm not happy with it?+
Over 91% of our customers report improved endurance and are very satisfied. But if that's not the case for you, we offer a 30-day money-back guarantee.
The EndurancePro in action:
"It felt a bit silly at first, just breathing into it. But you feel the resistance immediately, and after a few days, you notice clear improvements. I can go much longer during exercise now, and it’s really easy to train with."
"Honestly, I thought it was nonsense. I only got it because it costs 27 euros and there's a 30-day guarantee, so you can hardly go wrong with that. I've been using it for 10 days now and I don't get out of breath as quickly when climbing stairs anymore. The resistance is easy to adjust, so I can improve bit by bit."
"As an athlete, everyone knows how important endurance is. The EndurancePro has helped me stay fit and maintain my level during the off-season, when everyone else is just chilling."
What you can expect:
Day 1
The Start
Set the resistance, inhale and exhale for 5 minutes. It feels unusual at first – your respiratory muscles are working properly for the first time.
Day 3
First change
You turn the resistance up a little. When exercising, you notice that you don't get out of breath as quickly anymore.
Day 7:
Professional endurance
You’ve trained the muscles almost no one else does. More air, more stamina—you keep going when others slow down.
How it works:
Set the resistance however you like.
Start easy so you can get into it. As you get fitter, simply increase the intensity. This way, the training always suits you, whether you are just starting out or are already more advanced.
Breathe in and out
You don't need to do anything more. By doing this, you train your respiratory muscles: something that 99% of all people don't do. 5 minutes a day is enough, and you can do it anywhere, at home on the sofa or while on the go.
You have more stamina.
In a few days, you'll be out of breath less often and recover faster. You'll notice it exactly when others start to tire out, because that's when you can keep going.
Set the resistance however you like.
Start easy so you can get into it. As you get fitter, simply increase the intensity. This way, the training always suits you, whether you are just starting out or are already more advanced.
Breathe in and out
You don't need to do anything more. By doing this, you train your respiratory muscles: something that 99% of all people don't do. 5 minutes a day is enough, and you can do it anywhere, at home on the sofa or while on the go.
You have more stamina.
In a few days, you'll be out of breath less often and recover faster. You'll notice it exactly when others start to tire out, because that's when you can keep going.
Scientifically confirmed!
Take a look at the current state of research in 2026:
Respiratory muscle training in athletes: A systematic review and meta-analysis
Evaluation of 21 randomized controlled trials with athletes: The meta-analyses showed a significantly positive effect of respiratory muscle training on athletic performance: measured by time trials, exercise duration, and Yo-Yo tests. Strength and endurance of the respiratory muscles improved in the studies.
Source: Journal of Strength & Conditioning Research
Effect of respiratory muscle training on endurance performance: Meta-analysis with 46 studies
The largest evaluation of healthy athletes: In endurance tests, performance improved by an average of 16% after respiratory muscle training, and by 18.5% in intermittent incremental tests. This means: Those who train their breathing last 16–18% longer on average – with the same level of training.
Source: Sports Medicine
What our customers say:
I thought at first it wouldn't make a difference...
but after a few days I'm noticing clear improvements in my fitness. I got it because I really wanted to go all out this summer & thanks to the endurance trainer, I'm going to do just that.
Anyone who wants to get fit should use this thing!
For a long time I struggled with poor fitness, and I tried a lot of things, but nothing improved my fitness as easily & quickly as this endurance trainer!
Works for smokers, too.
To anyone looking to counteract their smoker's lungs, give this a try haha. I was always the guy who was out of breath and this thing helped me get back into good shape.
I am satisfied
Great products! I'm completely satisfied & you can definitely notice an improvement when running. I also don't understand some of the discontent, as the quality is super. Top products for athletes!
Cool device
At first, I thought this was just another thing that would end up in a drawer after three days. But it really only takes a few minutes, and I do it while watching TV. After two weeks, I've noticed when jogging that I don't run out of breath as quickly as before.
At first, I was skeptical.
I was a bit skeptical at first and didn't think it would really do much. But you can feel the resistance right from the first use. After a few days of training, I already felt like I could breathe better and hold out longer during exercise. It's super straightforward and easy to incorporate into everyday life.
Frequently Asked Questions:
Are the products safe?
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Yes, our products are CE-tested and 100% safe! If you have breathing problems such as asthma or similar conditions, always consult a doctor first.
How does the EndurancePro work?
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The EndurancePro helps you improve your lung capacity, endurance, and overall fitness by having you breathe against resistance. Because of this resistance, your respiratory muscles have to work harder and will get stronger over time – meaning you won't get out of breath as quickly.
Should I breathe through my mouth or my nose?
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We recommend inhaling through the nose and exhaling through the mouth. If you want a more challenging experience, you can also just use your mouth. However, it is important to exhale through the mouth to feel the resistance.
How long are the delivery times?
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Our delivery times are generally 4-7 working days. During periods of high order volume, as well as for deliveries outside of Germany, delays may occur.
How can I track my order?
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As soon as we have dispatched your order, you will automatically receive an email with a tracking number from the respective shipping service provider. For any questions, please always contact our support team first: enduraflow.contact@gmail.com
Is there a money-back guarantee?
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Yes, we offer a 30-day money-back guarantee on all products. If you are not satisfied with a product or if it does not meet your expectations, you can return it within this period and receive a full refund of the purchase price. The return must be in the original packaging and unused.
How can I contact you?
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You can contact us via our contact form or at: enduraflow.contact@gmail.com
Do your products help with breathing problems?
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Our products have only been developed to help athletes improve their fitness. This is not a medical product; in case of breathing problems, please always consult a doctor first.