PNOĒ
Rating applies to: Portable and laboratory VO2 / metabolic gas-analysis systems. It is not a rating or endorsement of PNOĒ as a company or of its quality, safety or results.
According to the company, a breath-analysis device and practitioner software measuring 23 metabolic and cardiorespiratory metrics in about 8 minutes. The company also offers other practice tools not covered here.
Descriptions are based on publicly available information and are not independently verified. Features, pricing and availability change; confirm with the provider.
Company-reported details
The company also describes a broader practice platform with lab ordering and program tools; those services are not covered here.
According to the company's own pages, checked October 16, 2026. Not independently verified; confirm on the company's site. Not medical advice; measurement accuracy varies.
- Who it's for
- Practitioner, clinic or gym (software and testing device)
- What it measures
- The company says it measures 23 metrics from breath analysis in about 8 minutes, including VO2 max, resting metabolic rate, fat vs carbohydrate use and ventilatory thresholds
- Form factor
- Breath-analysis device (PNOĒ 2.0) with practitioner software and a client app
- Price (as published)
- Not published on the pages we reviewed; contact the company
- Company pages
- Home page
Not medical advice or a diagnosis; medical decisions need a licensed clinician. See the comparison guides or Training Equipment for equipment.
About this evidence rating
Published validation studies compare individual systems with laboratory carts or reference methods. One study found a portable analyzer agreed strongly with a stationary cart during cycling; another found a different portable analyzer acceptable in cycling; a third found a portable system overestimated VO2 at moderate and vigorous intensities versus a Douglas-bag reference. Validity depends on the specific device, protocol and intensity. The rating applies to the category, not to any brand.
This is an editorial opinion based on publicly available research, not medical advice or a regulatory determination. How ratings work. Last reviewed October 16, 2026.
Things to consider
- Results from different analyzers may not be interchangeable; use the same device for repeat tests.
- Maximal exercise testing may require medical screening first; ask a clinician if you have heart, lung or other health conditions.
- Outputs such as training zones or biological age are estimates, not diagnoses.
- Discuss results and any next steps with a licensed clinician.
- Pricing
- Pricing varies; check the provider's site
- Regions (as reported; verify)
- Global
Sources
- Tsekouras YE et al. Validity and Reliability of the New Portable Metabolic Analyzer PNOE. Front Sports Act Living 2019
- Montoye AHK et al. Validity and Reliability of the VO2 Master Pro for Oxygen Consumption and Ventilation Assessment. Int J Exerc Sci 2020
- Macfarlane DJ et al. Validity, reliability and stability of the portable Cortex Metamax 3B gas analysis system. Eur J Appl Physiol 2012
Links are provided for reference. Citing a study does not imply its authors endorse this site or any product.
Some links on this site may be affiliate links; we may earn a commission if you buy through them, at no extra cost to you. Affiliate relationships and paid placements never change evidence ratings.
Longevity Ledger provides general information, not medical advice. Ratings are editorial opinions based on publicly available information. Consult a licensed clinician before changing medication, hormones, supplements, testing or training. Some links are affiliate or sponsored links; see our affiliate disclosure.