A reusable user piece that serves as a filter lock and spit guard that accepts the air you breath. Purchase additional user pieces for fast switching in back-to-back testing, or to perform different types of VO2 assessments.
Used for Resting Metabolic Rate (RMR) assessments and for light walking. Ventilation Range 5-40 L/min
Used for exercise testing for users with a common sized thoracic cavity. Ventilation Range 30-160 L/min
Used for exercise testing of professional high-intensity athletes or users with large thoracic cavities. Ventilation Range 40-220 L/min
We offer up to 3 different shipping options – You will be asked to select a shipping method at checkout. Shipping rates are determined by delivery location and shipping method and will calculated at checkout.
Shipping Dimensions: 3in H x 7in W x 7in L
VO2 Master Analyzer
Break through training plateaus.
Go beyond conventional training methods and excel into the new era of personal assessment and physiology to maximize your training results.Get the kit
Guided metabolic & performance testing.
Our FREE easy-to-understand performance reports provide you with essential training zone metrics, VO2 Max, Heart Rate and RMR values, plus many others used in training optimization.Get the kit
VO2 Master App
Connect your way.
Achieve unparalleled portability by accessing live data through both the VO2 Master Manager app and the VO2 Master Garmin Data Field.Get the kit
Frequently Asked Questions
Users should use the medium user piece if their ventilation range is between 30-160 L/min. The large user piece is used in most cases by professional high-intensity athletes or users with a ventilation range 40-220 L/min
No, assessment reports are provided instantly at your request and are available for download FREE of charge.
Using our ‘Contact’ page, complete the form and select ‘Replacement Parts’ under the ‘Type of request’ drop down menu.
Yes, though you are only required to purchase additional consumables based on your frequency of use. All analyzers are required to be serviced annually at the owner’s expense.
Just Looking for Accessories?
Easy-to-replace consumables that ensures optimal performance for your VO2 Master Analyzer. Comes with 50 Filter Discs and 1 Desiccant Cartridge.
20g & 0.5g Silica Gel Desiccant Packets
Rechargeable silica gel desiccant packets to keep your VO2 Master Analyzer equipment dry when not in use.
Easy to apply, autoclavable and comfortable face mask with an adjustable five-point head strap. Available in multiple sizes.
Proven in the field.
From professional athletes to testing facilities, VO2 Master provides the insight required to help you reach your performance goals.
Lionel SandersProfessional Triathlete - Ironman World Champion
Kristian BlummenfeltProfessional Triathlete - Olympic and Ironman world champion
Gustav IdenProfessional Triathlete - Ironman World Champion
Olav Aleksander BuProfessional Coach and Scientist
Kirsty DunneWellness Performance Leader/Athlete
Maria "Flaca" GuerreroProfessional Triathlete
Sebastian CordovezSports & Fitness Consultant
Start assessments in under 10 minutes.
1. Power up
2. Select your app protocol
3. Start assessment
What others are saying.
Real reviews by real coaches, athletes and military personnel.
“Knowing and using VO2 Master has allowed us to be able to evaluate and monitor our athletes both to improve their sporting performance and for research purposes. VO2 Master has become an indispensable tool for optimising our training, projects and studies.”
Dr. Alfonso Penichet Tomás
Head coach and researcher in traditional rowing at University of Alicante
University of Alicante
I was like nobody back then, and I believe many people thought the VO2 Master was just a cool accessory and not an advantage in training. VO2 Master is super useful, it’s like taking the lab out to the training field where I train day to day. Being in a lab is great but its not the environment where I perform and the VO2 Master allows me to get accurate measurements, out there wherever I train, to get the numbers I get.Gustav Iden
Triathlete - Ironman World Champion Co-Founder of Santara Tech
I started using the VO2 Master Analyzer in 2017, to get a better understanding of what’s happening during test sessions and to dial-in my energy system for different training distances. I use the VO2 to learn how my engine is working and to identify weaknesses that need improvement. The simplicity and ease of use with the lightweight design will give more coaches and athletes the same benefits that I have had for years.Kristian Blummenfelt
Triathlete - Olympic and Ironman World Champion, Co-Founder of Santara Tech
We chose the VO2 Master Analyzer after a thorough screening of the 6 leading metabolic analyzers available on the market. Based on the process that we went through we needed to find a great compromise between an accurate and reliable device that the athletes actually like to use and the VO2 Master Analyzer is the only metabolic analyzer that allows us to measure freely wherever we are with basically the same level of technology that are in the metabolic carts in the laboratory.
Coach & Scientist, Co-Founder of Santara Tech
The nature of our research with tactical personnel requires that we conduct most of our work in dynamic and often austere environments while these personnel are doing highly physical tasks. While capturing energy expenditure is often a key requirement, pragmatically we have not been able to do this given the requirement for bulky, generally static, equipment. The VO2 Master has been a game changer. Being so small and portable we have been able to use it in a variety of projects, from mounted police on horseback to specialist police conducting occupationally specific capability testing. Best of all it works easily with some of our other equipment (e.g., polar HR monitors) and iPads and allows use to monitor and show other researchers and personnel data in real-time.
Director, Bond University Tactical Research Unit
Best lab for VO2max testing I’ve ever been to. Fresh air for days, actual numbers and real tarmac under the tyres.Tom Skujiņš
Pro Cyclist, Team Cannondale
The VO2 Master Analyzer enables our team to evaluate athletes on the water, which provides specific insight needed to really understand their physiology. We intend to use the information to help design individualized training programs.Rob Sribar, Ph.D.
General Manager, High-Performance Programs, American Canoe Association
Measuring Economy with VO2 Master enables me to select the fastest wetsuit for an athlete on an individual basis. My athletes can increase their swimming efficiency without increasing training volume.Roy Hinnen
Triathlon Coach, Roy Hinnen Personal Coaching
My Lab conducts physiological research in the field with firefighters and other tactical populations. The ability to accurately assess physiological responses of tactical operators in working conditions has been very challenging due to a lack of cost effective, validated device options. However, VO2Master has changed the game by providing practitioners and researchers with an invaluable, low profile tool to evaluate operator readiness.
Director, First Responder Research Laboratory, University of Kentucky