The first breath analysis device

that brings an Olympic athlete’s training experience in the palm of your hands.



Real-time connection to PNOÊ app and PNOÊ cloud for real-time connection with trainer anywhere around the world.
Ultra fast Oxygen (O2) and Carbon dioxide (CO2) sensors for highest possible accuracy.
Breath by breath detection according to gold standard method.
Skin breathing material for prolonged comfort.
Low resistance flow sensor.



Wear the mask and the device


Connect to the PNOÊ app


Monitor fuel utilization, muscle fatigue and workout intensity in real-time


Communicate all your biometrics in real-time to your trainer.

Why use PNOÊ

Measure your body’s true fuel consumption in real-life conditions to optimize your nutrition and workout intensity for every race or event*.

Find your optimal pace and true training zones based on weather conditions, landscape and sport.

Measure muscle exhaustion to optimize training intensity and avoid injuries.

Communicate biometrics to your trainer anywhere around the world in real-time.

Synchronize your metabolic profile during exercise and rest with your smart-watch and measure 24-hour caloric expenditure with 5x greater accuracy compared to standard smart watches.

Conduct unlimited VO2max tests anywhere at all times.

Conduct unlimited RMR tests to accurately determine nutritional needs.

*Training zones derived from lab-based VO2max protocols and FTP tests provide little information on our body’s performance, fatigue and fuel consumption (carbohydrate VS fat). Results of such tests are affected substantially by real-life conditions (weather, psychology, fatigue, landscape etc.) or by dynamic sports such as CrossFit.


PNOÊ utilizes the gold standard method for ergospirometry measurements. PNOÊ’s low cost, portability and high accuracy is a result of its proprietary and patented hardware design and software enabled sensing technology.
PNOÊ’s technology is covered by more than 10 patents and has been clinically validated by accredited research groups. Check our validation study presented at the ESPEN 2017 conference.

The unique benefits of field ergospirometry

The ability to measure a person’s ergospirometry responses (VO2, VCO2 and VE) under real-life conditions enables an unprecedented level of optimization in physical exercise and nutrition prescription.
Specifically, by using PNOÊ during real life physical exercise conditions one is able to:

Determine training zones with the gold standard method.

Breath analysis in real-life conditions is the medical gold standard method for deriving training zones. It accounts for environmental conditions, training level, physiological state and all other factors that affect your training zones.

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Measure accurately the fuel mixture being utilized.

Breath analysis in real-life conditions is the most accurate and scientific way of determining body fuel consumption (fat VS carbohydrate consumption) and calculating carbohydrate intake during the race.

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Assess muscle fatigue.

Monitoring metabolic activity during exercise through breath analysis is the most reliable way of assessing fatigue and readiness to perform physical exercise.

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Measure energy expenditure accurately.

Calibrate your metabolic profile with your fitness tracker to calculate energy expenditure accurately.

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As any medical grade ergometer, PNOÊ measures a person’s oxygen consumption (VO2), carbon dioxide (VCO2) production and ventilation (VE) during resting and exercise state. The combination of these metrics provides unique insights into our body’s condition including the amount of energy it expends…

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The limitations of lab
VO2max tests

Our body’s physiological state can change dramatically in response to factors such as environmental conditions and type of physical exercise (i.e. cardio vs resistance training). Consequently, results and guidelines generated by a st…

read more


Promo Device

The PNOÊ device.
Two masks of variable sizes.
Vest for outdoor usage.
Charging USB cable.
Polar H10.


Panagiotis Papageorgiou

An experienced data analyst with strong background in machine learning, statistics and software engineering. He has participated in research projects on computer vision, signal processing and brain imaging and co-authored respective articles, published in high impact scientific journals. In the past, he designed and implemented integrated analytics solutions for the maritime, environmental and manufacturing sectors.

Kostas Koutsoukis

A Mechanical Engineer working in the area of robotics. He received his Diploma in Mechanical Engineering from the National Technical University of Athens (NTUA) in September 2012. Since then he has worked in industry and participated as research assistant at numerous research projects. He is a PhD Candidate in the Department of Mechanical Engineering of NTUA, focusing on design, actuation, and control of dynamic legged robotic systems.

Konstantinos E. Machairas

was born in Athens in April 1989. He received his Diploma in Mechanical Engineering from the National Technical University of Athens (NTUA) in February 2013. He works in the area of embedded systems and robotics since 2010. Since April 2013, he is a PhD researcher at NTUA, working on the design and control of legged robots.

Manos Aspradakis

An experienced Web and ERP software developer with a demonstrated history of working in the computer software industry.Skilled in C#, ASP.NET Core MVC, WinForms, SQL Server and Oracle Databases, E-commerce, industrial & financial application development etc. A full stack software developer and a strong operations professional with great experience in the business applications lifecycle development.

Apostolos Atsalakis

holds a graduate degree in Nanotechnology from the University of Cambridge as well as an undergraduate degree in Applied Physics from the National Technical University of Athens. He has extensive experience in the field of entrepreneurship having served as a business developer in several technology ventures. He is the inventor of several patents and has published his scientific work in high impact peer reviewed journals. His contribution in the field of physics earned him the position of the reviewer at the Institute of Physics (IOP).

Panos Papadiamantis

Panos holds a graduate degree in Management Science and Engineering from Stanford University. From early on in his career he became involved in the field of entrepreneurship where his achievements earned him a spot in Forbes 30Under30. He has worked as a business developer in technology ventures in Silicon Valley as well as a researcher in CISAC – Stanford University.

Dimitrios Charalambidis

is a certified NLP Coach, Executive Coach, Organizational Development (O.D.) and Project Management Expert. He holds an MSc (University of Athens) and a PhD (University of Geneva) in Humanities.

Rex Widmer

After 2 years supporting PNOE as an independent advisor, Rex joined the team as Product Manager. Rex spent 11 years at GE Healthcare as CFO for two high-growth businesses & founder of two teams with breakthrough innovations. Rex studied economic development at Beloit College and public health at Johns Hopkins.

Konstantinos Dalakas

A passionate Mechatronics Engineer with solid background in electrical and mechanical design, fluid mechanics and prototyping. He has worked in the development of orthopedic medical devices and he has broad experience varying from building one of world’s smallest depth control mechanisms for a robotic fish, to drone design making it to the finalists of the Airbus Cargo Drone Challenge.

Advisory Board

George Chrousos

Chrousos is among the 250 most prominentclinical investigators in the world. He has authored more than 1100 scientific publications, has edited 29 books and his work has been cited over 74,000 times. According to the ISI, he is the highest cited clinical pediatrician and endocrinologist in the world.

Christos Mantzoros

Professor of Medicine in Harvard Medical School and the Director of the Human Nutrition Unit, Endocrinology, Diabetes and Metabolism in the Beth Israel Deaconess Medical Center.

Robert Desnick

Dean for Genetics and Genomic Medicine, Professor and Chairman Emeritus of the Department of Genetics and Genomic Sciences at the Mount Sinai hospital in New York. Former chair of the Association of American Medical Colleges.

Thanos Papadimitriou

Thanos is a Partner at Charge Ventures and an Adjunct Professor of Information, Operations, and Management Sciences at NYU Stern. Thanos has started a number of tech startup the most notable one being AlphaDetail (now a part of IMS Health). He has earned a BSc from MIT and an MS and a PhD from UCLA.

Derek LeRoith

Professor of Medicine and the current Chief of the Hilda and J. Lester Gabrilove, M.D. Division of Endocrinology, Diabetes and Bone Disease and Director of the Metabolism Institute of the Mount Sinai Medical Center in New York City.

Tjeu Souren

A world expert in the field of respiratory and cardiovascular diagnostic devices with more than 25 years of experience at building, qualifying and evolving medical devices for pulmonary and metabolic measurements. Member of the American Thoracic Society.