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POWERbreathe K5

Name: POWERbreathe K-Series
SKU: PBK-C
Availability: InStock
Rating: 5.00 (1 reviews)

6 Reviews

Price range: €475.00 through €699.00

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Digital Inspiratory Training A montage of the K-Series range

POWERbreathe K5

6 Reviews

Price range: €475.00 through €699.00

Breathe Smarter. Train Stronger. Precision Performance

Unlock your full breathing potential with the POWERbreathe K-Series, the peak of Intelligent Inspiratory Muscle Training.

The K-Series are the World’s most advanced digital breathing training devices, using unique tapered loading resistance. The POWERbreathe K3 is the device that was utilised in the 2022 University of Colorado research. This study demonstrated improvements in blood pressure when undertaking breathing training with a POWERbreathe K3. A level up is the POWERbreathe K5, featuring Breathe-Link® Software that offers real-time biofeedback and intelligent resistance, this is the Gold Standard for inspiratory muscle training in sports performance.

The POWERbreathe K-Series is crafted for elite athletes, sports teams and individuals focused on enhancing performance and respiratory strength. The K-Series will enable you to build strength and efficiency in every breath using cutting-edge technology designed to transform your training.

Featuring intelligent functions such as automatic setup, real-time guidance and instant feedback, the K-Series makes it easier than ever to train smarter and breathe stronger. No other portable, hand-held breathing muscle trainer offers this level of training accuracy, which is why these devices are the Gold Standard for use in athletic performance, healthcare and clinical research.

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Description

The POWERbreathe K-Series represents the pinnacle of Inspiratory Muscle Training (IMT) enabling you to take training to the next level. Our intelligent, digital breathing trainers deliver unmatched precision, performance, and progress tracking. The K-Series is designed for elite athletes, sports teams, and those looking to improve their health.

The POWERbreathe K-Series has seen several success stories. A UK Athletics-qualified running coach attributes his own improved cardiovascular endurance to the POWERbreathe K5. The coach has managed to reduce his cardiovascular fatigue by strengthening and optimising his breathing. This resulted in new personal best records at every distance.

How Does the POWERbreathe K-Series Differ from Mechanical Breathing Trainers?

All POWERbreathe K-Series devices use a unique patented electronic tapered loading technology that automatically adapts each breath to your breathing muscle strength. This means the resistance is constantly monitored and tapered to match your reducing respiratory muscle strength throughout each breath, allowing greater flow and maximum volume rather than cutting off halfway through a breath. The result of using the POWERbreathe K-Series:

More work per breath compared to traditional threshold pressure devices
Greater airflow and full breath volume
A more complete and effective breathing training session.

Precision Engineering in Every Breath

A calibrated electronic pressure sensor detects when you generate enough force to open a digital valve. This helps engage your breathing muscles more effectively. This is in tandem with the electronic tapered flow resistance. The device can adjust resistance throughout the breath, making training more natural, efficient, and comfortable. This is what makes the K-Series so unique.

After analysing your inspiratory (breath) strength, the device will automatically determine your optimal starting resistance. As you breathe in, resistance gradually decreases to mirror the natural decline in muscle force that occurs towards the end of each breath. This ensures that each breathing training session delivers maximum results in less time. Your training is more effective and faster when using the POWERbreathe K-Series.

The K-Series also offers manual resistance for full control and flexibility.

Advanced Performance Tracking

Unlike traditional constant load or flow devices, which apply fixed resistance, the POWERbreathe K‑Series offers smarter, more natural, and comprehensive training for a smoother, and more natural breathing cycle. This promotes deeper, fuller breaths, improved comfort, and better overall respiratory muscle conditioning.

The POWERbreathe K4 and K5 come with Breathe-Link® Live Feedback Software, which displays training data and strength tests in real time. The Breathe-Link® Software stores detailed metrics for up to 10/30 user profiles (K4/K5), making it ideal for personal training, team coaching, and clinical monitoring. For a detailed overview of each model’s capabilities, take a look at our K-Series Features comparison chart.

For a more technical look at the difference between a Flow Device, a Threshold Breathing Trainer such as the POWERbreathe Classic or Plus, and Tapered Load Devices like the K-Series, view our Comparison Table.

Breathe Stronger. Train Smarter. Go Further

Whether you’re recovering, competing, or optimising your respiratory health, the POWERbreathe K-Series are World leading devices that provide the intelligence, precision and performance to help you breathe stronger and achieve more.

What is POWERbreathe IMT?

POWERbreathe K-Series Range

Unsure which POWERbreathe K-Series model is right for you? Here’s a simple breakdown of each digital breathing trainer, what it offers, and who it may be best suited to. For a more detailed look at the different functions available with each model, take a look at our K-Series Functions Table.

POWERbreathe K1

The POWERbreathe K1 is an introduction to intelligent (digital) inspiratory muscle training.

The K1 is the perfect starting point for anyone looking to build breathing strength and efficiency with tapered load technology, breathing pacing guidance, and real-time training data. Using a K1 takes you beyond mechanical breathing trainers and into smarter training. Key features of the POWERbreathe K1 include:

• Automatic resistance adjustment that adapts as you breathe
• Breath counter & session end alerts to keep you on track
• Key metrics displayed on device: load, power, inhaled volume
• Rechargeable, with a multi-user option.

Simple, effective, and intelligent. The K1 is your entry level into tapered load digital breathing training.

POWERbreathe K3

The POWERbreathe K3 has smarter features for more detailed feedback.

The K3 builds on the K1 with advanced testing and session analysis tools. With the Single Breath Test and S-Index® ratings, you can measure your inspiratory strength against population averages and track progress with greater accuracy. Used in the 2022 University of Colorado research study that demonstrated blood pressure improvements when undertaking Inspiratory Muscle Strength Training (IMST) Training. The POWERbreathe K3 includes:

• All K1 features, plus:
• Single Breath Test & S-Index® rating (poor → excellent scale)
• Breathing training effectiveness measurement (T-Index Percentage)
• Graphical history (36 sessions) to track cmH20, flow, power, load, and volume
• Test modes for inspiratory flow and assessment

The K3 is a powerful tool for those who want more insight and measurable progress on their breathing training.

POWERbreathe K4

The POWERbreathe K4 features real-time performance and advanced analytics.

The K4 takes training to the next level with Breathe-Link® Software, allowing you to see every breath on screen, in real time. Perfect for athletes and serious trainers, the K4 combines precision training with detailed analytics. The POWERbreathe K4 includes:

• All K3 features (except T-index), plus:
• Breathe-Link® Software – PC/Mac connectivity via USB for real-time performance monitoring
• Easy to understand live feedback analysis that monitors each breath, providing visual feedback to help improve your performance.
• Breathing energy expended (joules) and other parameters saved on the Breathe-Link® Software
• Graph of previous 36 Breathing Energy results on device
• Allows up to 10 user profiles and 1200 stored sessions per user

For those who want live feedback and advanced analysis, the POWERbreathe K4 turns training into data-driven performance.

POWERbreathe K5

The POWERbreathe K5 is the ultimate in digital inspiratory muscle training. This is the go-to professional grade breathing training device.

Featuring Breathe-Link® Software that offers real-time biofeedback and intelligent resistance, the POWERbreathe K5 is the Gold Standard for inspiratory muscle training in sports performance, for coaches, and by elite athletes looking to improve their performance. The K5 is the most advanced model in the K-Series range, offering the most comprehensive features, including an advanced test mode, customisation and full data review.

The K5 includes:

All K4 features, plus:
• S-Index® rating to easily test the strength of your breathing muscles and monitor strength improvements.
• On board memory that can store up to 36 sessions of the most important biofeedback markers – Load (cmH2O), Power (Watts), Volume (Litres), Energy (Joules) – to help you keep track and monitor your training progress in an easy-to-understand historical graphical display. Note: Flow (Litres/second) is shown on the Breathe-Link® Software only
• The POWERbreathe K5 allows for up to 30 user profiles and 1200 stored sessions per user, making it an essential biofeedback tool for teams and coaches, as well as individuals.
• Advanced statistical review for deep training analysis (Pro view)
• Customisable Training: Create, personalise, and upload your own sessions for tailored respiratory workouts.

The K5 is the Gold Standard in digital inspiratory muscle training. It has everything you need to unlock the very best from your breathing.

Breathe-Link® Software

The POWERbreathe K4 & K5 have Breathe-Link® Software. This brings several features, including:

Real-Time Feedback: View live metrics including Load, Power, Volume, Flow, and Energy
Live Breath Test: Measures inspiratory muscle strength (S-Index®) and peak inspiratory flow in a single breath
Live Training: Pro View (available on the K5): Detailed, simultaneous plotting and analysis of all inspiratory muscle training data
Custom Mode (available on the K5): Create and upload your own personalised breathing training sessions
PC & Mac Compatible: Connect the K4 and K5 via Breathe-Link® Software to view historical data and track progress over time
Click here to view POWERbreathe K5 Screenshots

POWERbreathe K5 Breathe-Link® Software Screenshot Examples

What are the benefits of using the POWERbreathe K-Series?

Inspiratory Muscle Training is scientifically proven to:

Strengthen breathing muscles, such as the diaphragm
Improve breathing efficiency, reduce breathing fatigue, reduce breathlessness and improve overall wellbeing
Increase functional lung capacity and help athletes, singers, and those with a variety of health conditions

POWERbreathe K-Series Benefits include:

Patented Adaptive Resistance: Electronically tapered resistance responds to your breath strength for longer, more effective inhalations
Scientific Precision: Backed by peer-reviewed studies validating training load, strength metrics, and inspiratory energy output. The POWERbreathe K3 was the device used in the 2022 University of Colorado Study investigating the anti-hypertensive impact of high resistance inspiratory muscle strength training (IMST)
Elite-Level Conditioning: Enhance breathing strength, stamina, and control for sport, rehabilitation, or health optimisation

How does the POWERbreathe K-Series Work?

Initial Strength Test: Start each session with two unresisted breaths to assess your maximum inspiratory capacity using the S-Index®
Adaptive Loading: Resistance is applied dynamically from breath 3 onward, tapering throughout each inhalation to match your naturally decreasing strength
Live Tracking: Key performance metrics are shown on the built-in LCD screen with the optional real-time Breathe-Link® Software for K4 and K5 for immediate feedback
Progressive Training: Over time, the K-Series increases the starting resistance automatically to align with your gains in strength and endurance

Measurement Validity

The following study concludes that the K-Series device ‘provides automatically processed and valid estimates of physical units of energy during a loaded breathing task.’

Measurement validity of an electronic inspiratory loading device during a loaded breathing task in patients with COPD

The following study suggests that S-Index® might be more appropriate for measuring inspiratory muscle performance than the currently most used test, PImax.

Assessment of Maximum Dynamic Inspiratory Pressure

The following study finds that ‘It is feasible and reliable to evaluate the maximum repetition of inspiratory muscles in healthy individuals.’

Is It Possible To Test The Maximum Repetition For The Inspiratory Muscle? Feasibility, Reliability and a Comparison with the Maximum Dynamic Inspiratory Pressure

The following research found that by using the Strength-Index® Test to assess and enhance respiratory muscle strength, athletes will experience tangible improvements in both endurance and overall athletic capability:

Which Model

Unlike the Mechanical Models, such as the POWERbreathe Classic and Plus, the K-Series automatically set the optimal training resistance, so there’s no need to manually adjust the level. Each model within the K-Series comes with its own unique set of features, allowing you to simply choose the one that delivers the guidance, feedback, and functionality that best supports your training goals.

The following resources will help you decide the most appropriate K-Series device for your needs.

K-Series Model Comparison Table

What's in the Box

GB, AUS, EU or US plug (depending on your country of purchase)
Cradle to house the device while charging
Mouthpiece TPE (Thermoplastic Elastomers)
Nose clip
Storage pouch
4 x Cleansing Tablets – except for in the USA. Genuine POWERbreathe devices will not contain POWERbreathe Cleansing Tablets in the USA, as these tablets are not approved for sale and/or distribution within the USA by the regulatory authorities. Read more about Counterfeit products.
Market-specific user manual – supplied for the end user’s country e.g. English for UK & Ireland, Spanish for Spain, French for France etc.
Breathe-Link® Software will need to be downloaded (K4 & K5 only)

FAQ

When connected to the Breathe-Link® software, you can add up to 30 user profiles on the K5, or 10 on the K4, who you then select in the software. Each user can then train on their own profile. If the device is used while disconnected from the software, then only one profile will be in the hand-held unit, the one set by the user on the unit. The results will refer to this user.

If your battery is no longer charging it may need replacing. It is like any other battery, such as in your smartphone, and will become less efficient with every charge. It is at this point that your battery will start to lose its capacity to hold the charge. If this is the case:

If you purchased your device on powerbreathe.com, please contact us regarding your battery replacement request and we will get back to you.
If you purchased your device from one of our official distributors or stockists, please contact them directly in the first instance.

There is a service charge for the replacement of a K-Series battery, as it must be replaced by a technician to ensure all connectors are correctly located. It is then fully tested before being returned to you.

It really varies based on the User i.e. Medical, Trainer, Private Individual, and personal needs.

We offer the Calibration Service to meet the needs of the respective Groups. Medical generally require all equipment to undergo an annual calibration, as they rely very much on the data. Private individuals may also wish to have this service for peace of mind in the knowledge that their device is functioning correctly. However, due to Calibration being a chargeable service, you may choose not to.

Certainly KH2, KH1 products designed for Medical Markets should be calibrated annually.

These levels are more like “Intensity” levels so once you are comfortable with working at the Very Light intensity and/or your improvement appears to flat line with little or no improvement, then you Manually increase the intensity of your work out to Medium for example.

Each time you use your POWERbreathe, your first two breaths will calculate your optimised working level (Auto-optimising feature). This will step incrementally over the next three breaths to your training load for the session, and is based on the level of intensity you have manually selected.

The most important message is to ensure that you can maintain your 30 breaths for the session, if the Level or Intensity is too high then you will find that the session will be short and you are training to fail. Consider as a comparison: Weight lifting as an example – the incomplete Arm curl or doing half completed repetitions within a set – It is more important to complete those 30 reps.

In order for you to use your mask with the K-series units you will require the POWERbreathe Spacer

People suffering from COPD and Asthma and may also require assistance with Oxygen, so there is also an “Oxygen Mask adapter” which links also to the POWERbreathe spacer.

The KH1 is a medical device and includes features and results for more medical requirements, including measurement of a Single Breath Test MIP (maximal inspiratory pressure) and measurement of a Single Breath Test PIF/Flow Test (inspiratory muscle strength, peak inspiratory flow rate and inhaled volume). It also provides test results specifically for MIP (cmH2O) and PIF (litres).

The KH1 has been developed for the following:

Doctors
General Practitioners
Respiratory and cardiac specialists
Surgeons
Physiotherapists
Nurses
Patients with respiratory problems

The K5 doesn’t include testing for MIP or PIF, nor therefore provide results. The K5 was developed for anyone who wished to improve their breathing strength and stamina for whatever reason, including individuals and sports people.

The K5 has additional features: the Pro Analysis View and the Custom Mode.

The Pro Analysis View enables you to see line graphs of each breath opposed to bar charts. This is good feedback to enable you to aim for a long flat line on the graph although some people prefer the bars.

The Custom Mode allows you to set a custom number of breaths at a selected load as opposed to the standard 30 breaths. For example you can select maybe 10 breaths on a heavy load or 60 breaths on a light load. This session can be done using the computer or uploaded to the unit. If you go for the K4 you could still do 10 of the 30 breaths and manually select a higher load if you specifically wanted to do this session.

The POWERbreathe unit will only show the highest load set in the custom routine. It is advised to use the Breathe-Link® software to get a more accurate view of pressure load. The values shown on the Breathe-Link® software is the average pressure (average weight lifted) for the entire session. It is possible to analysis the data in greater detail in the Review Screen see Chapter 10 Data Review for more information.

The POWERbreathe K-Series unit will automatically estimate your training load at the beginning of every training session. Using this method, the device will adjust the training load every time you start a new session and as the strength of your inspiratory muscles increases. Automatic setup of this load takes place during the first two breaths of each training session. The intensity levels represent a percentage of your estimated load that you will be training at.

The session number counts the total number of sessions you have completed (up to 999). However, the K-Series device can only store a maximum of your last 36 training session results – this is limited by the memory on the device and the display area on the screen.

How to Clean Your POWERbreathe K-Series IMT Device

It’s important to clean your POWERbreathe K-Series after every training session. Remove the valve head and mouthpiece from your device and soak them in warm water for about 10 minutes. Place the valve head under running water whilst opening and closing the valve. This allows the valve surfaces to be cleaned. Do the same with the mouthpiece.

Make sure you shake off excess water and leave them on a clean towel to dry. Once a week, repeat this but soak the valve head in POWERbreathe Cleansing Solution instead of water. After cleaning, hold the valve head under a running tap, allowing water to run through it. Shake off excess water and leave on a clean towel to dry.

Wipe clean the POWERbreathe device handset with a damp cloth. Be careful not to immerse the handset or expose it to running water because this means you may damage the internal electronics and void your warranty. For more information on cleaning your POWERbreathe K-series, follow the linked video below.

How To Clean Your POWERbreathe K-Series IMT Device

Precautions & Contraindications

A list of precautions and contraindications can be found here.

Customer Reviews

(6 Reviews)

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Top Reviews

Woody

★★★★★ Reviewed on August 26, 2023

Fabulous bit of kit helped with my asthma and improved my breathing when running and other sports ! Had a few years and I think it’s got to go back for a new battery it’s not charging properly!
Regards woody

Gerry Hamill

★★★★★ Reviewed on July 12, 2023

My Story - firstly I would like to thank all at Powerbreathe for the help that this device has given me over the past 12 months.

I was in ICU for 6 months, 2 months of which I was in a coma, and suffered Ventilator-Associated Pneumonia with Lung Damage as a result, plus Huge Muscle Mass Loss. I was so profoundly weak that I could not lift my fingers off the bed when I came out of the induced Coma.

This Powerbreathe device has been a life-saver for me and I cannot recommend it highly enough for driving my recovery. It was given to me in ICU by a Physio. I was weaned off the Ventilator and Tracheotomy Ventilation.

From being unable to lift my fingers, unable to sit up and breathe, unable to stand or walk - I am now walking unaided off-Oxygen and have built up from 1 set x 3 reps at Resistance 1 (Min) to 10 sets x 20 reps at Resistance 10 (max).

Other than my motivation and Rehabilitation routine I would put my Powerbreathe at top spot in helping my recovery to date! Thank you so much.

Since I contacted you within 1 year, from first using it, from not being able to sit up or stand, I just completed a 2-mile walk off oxygen at av. 2.2 mph. I continue to use it every day before my walks - the benefit has been huge! Thank you so much!

A sondergaard

★★★★★ Reviewed on December 7, 2022

I bought this device years ago. I remember what an impact it had on my running after just 3-4 weeks off daily usage.

Over the next months, I was not disciplined enough to keep it up consistently with the cleaning and everything so eventually it ended in my drawer.

Now I found the device again after 7-8 years. I started the daily training and I immediately feel a difference only after a few days. I do a lot of zone 2 training (power walk) and while it is great for longevity, this does not challenge breathing muscles much. Therefore I have added powerbreathe to my daily routine.

I can highly recommend this gem of a device. I do not understand why so few people use it considering the benefits. Maybe it is because you need to be very disciplined to have lasting benefits?

POWERbreathe K5

POWERbreathe K5

Description