Respiratory Trainers

Breathe Stronger. Perform Longer. Recover Faster.

What if 5 minutes of breathing could outperform your 1-hour cardio session?

Perform Better, Recover Faster – Order Yours Today!

ISO-BWB-S Respiratory Trainer

$149USD

From Europe? Check out our European distributor.

Your Future Self Will Thank You.

You push harder, but your lungs aren’t keeping up. Traditional training masks restrict airflow but fail to maintain oxygen and CO2 levels.

ISOCAPNIC is the only trainer that strengthens respiratory muscles while maintaining optimal oxygen and CO2 levels, so you can push past your limits without gasping for air.

The BWB doesn’t just use resistance—It’s Scientific Oxygen Optimization to help you:

Built in Partnership With:

Backed by Science, Loved by Athletes:

Sara Sigmundsdóttir

Icelandic weightlifter and CrossFit athlete known for her third-place finishes at the 2015 and 2016 CrossFit Games and her first-place finishes at the 2015 and 2016 Meridian Regionals and the 2017 Central Regionals.

Andrew Hauser

Andrew’s most recent role was as the Director of Performance Rehab with the Los Angeles Dodgers through their 2020 World Series season. Andrew’s passions lie in both the strength and medical aspects of sports, but also in professional development and education. Prior to moving to L.A., he served as the Director of Health & Performance for the Atlanta Braves where he oversaw medical and strength staff and integrated departments both in the Major League and Minor Leagues all while continuing to develop and refine his and his colleagues’ skills.

Svend Kløcker

My story is full of ups and downs, but every challenge has shaped me into who I am today: a person who believes that we can all find strength, no matter what we face. Through my journey towards Ironman 2027 and my project, Project Ironman2027, I want to inspire others – especially young people – to talk openly about mental health and use exercise as a path to well-being.

Just a few weeks of practice but I already feel a change in running. Heart rate is lover on very easy runs. On the other side I get it up higher in hard running but still doesn’t feel like the heart rate is so high. Very interesting and love to see what happens after a longer period. I’m now at Master World Championship in Gothenburg running several races and have it with me so I can keep up my practice

Been loving this thing for my pre ski and pre MMA warm ups!

I think it’s a great tool for a lot of different things. I’ve connected some athletes with it to use for respiratory warm ups, intervals, race days warm ups, and post viral recovery.

We love it, I have been using it for training and warm-up in competition for more than 2 years. It really made a difference!

I like the BWB very much. I have asthma, so it helps me develop my endurance.

Been using BWB for a few years now. Super simple! Compact and easy to travel with. I use it everyday as part of my daily training routine. I also get a ton of benefit to using it at altitude. Thanks Coach Luke, Dr Sellars and the Isocapnic team for all the help! Best in the world!!

Swim sessions with @isocapnic just hit differently 😅

Need More Control?

ISO-BWB-Mask

We’re thrilled to unveil the latest innovation in our line of breathing enhancement products: the new mask version of the Isocapnic BWB respiratory trainer. This new version retains all the features you’ve come to trust and love in our standard BWB, while offering a new level of versatility and comfort.

ISO-BWB-Mask
Respiratory Trainer

$279USD

$150USD without a mask

Mask Sizing

Read MoreLess

Import Fees and Tariffs
Please note that import fees, taxes, and tariffs are charged by the importing country and are outside of Isocapnic’s control. These fees are determined by local customs authorities and are the responsibility of the recipient. We recommend checking with your local customs office for more details on any additional charges that may apply to your order. If you take issue with these fees, ensure you talk to your local representatives to enact policy that improves these burdens on you the buyer.

Shipping Information:
We ship internationally and process all orders within 1-12 hours before shipping. Shipping costs are calculated based on your location and selected shipping method, and will be added at checkout. All orders are tracked via third-party shipping services (e.g., UPS), so you can stay updated on your order’s progress.

Returns and Refunds:
We take great care in ensuring your product arrives in perfect condition. If your product arrives broken or defective, we handle these cases on an individual basis to provide the best possible solution. Please contact us right away if this occurs.

If your package is lost during shipment, we will also handle this on a case-by-case basis, ensuring that we find the best way to resolve the issue.

Important Notice on Returns:

If the factory seal on the product box is broken, we cannot accept returns or issue refunds.

If a package is not accepted upon delivery, we will not issue a refund.

If you have any questions about our shipping or return policies, please contact us before purchasing.