# Exhaled-breath glucose monitoring Non-invasive breath-analyte devices aiming to monitor diabetes-relevant metabolic state without a fingerstick or implanted sensor — most commercially advanced platforms detect breath acetone/ketones as a metabolic proxy, while newer entrants target a more direct blood-glucose alert claim: PranaQ, Invoy Technologies, LEVL and PREEVNT, all US-based. Source: https://en.bioecon.ru/technology/exhaled-breath-glucose-monitoring/ Updated: 2026-08-18 ## Overview and value chain Markers: [EC: IVDR 2017/746 | OECD: Biotech-health | Regulator: FDA (USA), EMA (European Union), NMPA (China)] Exhaled-breath glucose monitoring aims to track diabetes-relevant metabolic state from a breath sample instead of a fingerstick blood test or implanted continuous glucose monitor. The commercially furthest-along devices in this category actually detect breath acetone or ketones — metabolic byproducts correlated with fat metabolism and, in diabetes management, with risk of diabetic ketoacidosis — rather than glucose molecules themselves; PranaQ, Invoy Technologies and LEVL all build breath acetone/ketone sensing devices marketed into metabolic-health and diabetes-adjacent use cases. Invoy Technologies holds patents covering its breath analysis device and wearable breath-analyte measurement hardware, and runs an active ketone research device program for breath acetone studies. LEVL's breath ketone analyzer targets fat-metabolism tracking. A newer entrant, PREEVNT, is pursuing a more direct blood-glucose claim with its ISAAC device, which debuted as a non-invasive blood glucose alert device at the CES Digital Health exhibit and is publicly documenting its path through FDA review. The key directions of exhaled-breath glucose monitoring are: 1. **Breath acetone/ketone sensing (Breath Acetone Ketone Sensing):** electrochemical or semiconductor gas sensors detecting breath acetone as a proxy for fat metabolism and diabetes-relevant ketosis — PranaQ, Invoy Technologies, LEVL. 2. **Direct breath glucose alert devices (Breath Glucose Alert Devices):** devices claiming to alert on blood-glucose status directly from a breath sample rather than via a ketone proxy — PREEVNT's ISAAC. 3. **Wearable breath analyte measurement (Wearable Breath Analyte Measurement):** patented wearable form factors for continuous or repeated breath-analyte sampling outside a single handheld reading — Invoy Technologies. 4. **FDA clearance pathway navigation (FDA Clearance Pathway):** the regulatory-validation journey each device must complete before its glucose or ketone claim can be marketed as a medical diagnostic — publicly documented by PREEVNT for ISAAC. ### Sectoral value chain ``` [breath sample collection] ──> [gas sensor detection (acetone/VOC)] ──> [signal processing & blood-reference calibration] │ (alert/reading generation) │ ▼ [diabetes management integration] <─── [regulatory clearance (FDA)] <─────┘ ``` ### Value chain levels | Level | Description | Key inputs/outputs | |:---|:---|:---| | **Breath Sample Collection** | the user exhales into a handheld or wearable device, a non-invasive procedure taking seconds | **In:** exhaled breath.
**Out:** breath sample for sensor analysis. | | **Gas Sensor Detection** | an electrochemical or semiconductor sensor detects the target analyte (acetone or other glucose-correlated VOC) | **In:** breath sample.
**Out:** raw sensor signal. | | **Signal Processing & Calibration** | the raw signal is processed and calibrated against a validated blood-glucose or blood-ketone reference | **In:** raw sensor signal, calibration data.
**Out:** calibrated analyte reading. | | **Alert/Reading Generation** | the device outputs a reading or alert (e.g. elevated ketone risk, glucose trend) to the user's app | **In:** calibrated reading.
**Out:** user-facing alert/reading. | | **Regulatory Clearance** | FDA 510(k)/De Novo review or EU IVDR conformity assessment of the device's specific diagnostic claim | **In:** clinical validation data against blood reference.
**Out:** cleared/CE-marked device. | | **Diabetes Management Integration** | the reading informs diet, insulin dosing or ketoacidosis-risk management decisions alongside standard glucose monitoring | **In:** device reading.
**Out:** management decision. | Cross-cutting technologies of the sector: - **Electrochemical/semiconductor gas sensing (Breath Acetone Ketone Sensing):** solid-state gas sensors tuned to detect breath acetone at parts-per-billion concentrations, the core chemistry behind PranaQ, Invoy Technologies and LEVL's devices. - **Direct glucose-correlate detection (Breath Glucose Alert Devices):** sensor approaches aiming to correlate breath signal more directly with blood glucose rather than the acetone/ketone intermediate, PREEVNT's stated technical direction for ISAAC. - **Wearable continuous breath sampling (Wearable Breath Analyte Measurement):** patented wearable hardware (Invoy Technologies) extends breath analysis from a single spot-check reading toward more continuous monitoring. --- ## US The US hosts every source-confirmed company in this category, spanning established breath-ketone sensing and a newer direct-glucose entrant. ### PranaQ, Invoy, LEVL, PREEVNT, FDA - **PranaQ:** builds a breath acetone sensing device targeted at metabolic-health and diabetes-adjacent monitoring use cases. - **Invoy Technologies:** holds patents covering its breath analysis device and wearable breath-analyte measurement hardware, and runs an active ketone research device program for breath acetone studies. - **LEVL:** its breath ketone analyzer targets fat-metabolism tracking, adjacent to but distinct from a direct diabetes-glucose claim. - **PREEVNT:** its ISAAC device debuted as a non-invasive blood glucose alert device at the CES Digital Health exhibit, with the company publicly documenting its path through FDA review toward a direct glucose-monitoring claim. - **FDA framework:** breath-analyte devices claiming a diabetes-relevant diagnostic use require FDA 510(k) or De Novo review, with the bar significantly higher for a direct blood-glucose claim (PREEVNT's ISAAC) than for a general metabolic/ketone wellness claim. --- ## CN No dedicated Chinese exhaled-breath glucose monitoring company cleared source confirmation as of 2026; Chinese coverage of non-invasive glucose monitoring in this period centers on the broader technology-trend market rather than a specific breath-based commercial originator. ### market-trend coverage, NMPA pathway - **Market-trend focus:** Chinese industry reporting on non-invasive glucose monitoring covers the broader technology category (including optical and other non-breath approaches) rather than a dedicated breath-analyte company. - **NMPA pathway:** any breath-based glucose or ketone monitoring device reaching Chinese clinical use would register with NMPA as a medical device, following a validation-heavy pathway given the category's early clinical-evidence stage. --- ## EU No dedicated European exhaled-breath glucose monitoring originator cleared source confirmation as of 2026; the category's confirmed commercial activity remains concentrated in the US. ### IVDR pathway - **IVDR framework:** were a breath-based glucose or ketone monitoring device to enter the EU market, it would require conformity assessment and CE marking under the In Vitro Diagnostic Regulation (IVDR 2017/746), the same framework governing other point-of-care diagnostic devices in this catalog. --- ## Leading companies and research institutes | Company / Institute | Country | Key products / platforms | Tech features | Status 2026 | |:---|:---|:---|:---|:---| | **PranaQ** | 🇺🇸 USA | *Breath acetone sensing device* | Metabolic-health/diabetes-adjacent monitoring | growth | | **Invoy Technologies** | 🇺🇸 USA | *Wearable breath-analyte measurement* | Patented device + wearable hardware | growth | | **LEVL** | 🇺🇸 USA | *Breath ketone analyzer* | Fat-metabolism tracking | growth | | **PREEVNT** | 🇺🇸 USA | *ISAAC breath glucose alert device* | Direct glucose claim, in FDA review | growth | --- ## Tech stack and innovations The stack applies solid-state gas-sensing chemistry to breath acetone and related volatile organic compounds, with the field's leading edge now pushing toward a more direct blood-glucose correlate rather than the established ketone proxy. 1. **Breath acetone/ketone gas sensing (Breath Acetone Ketone Sensing):** - PranaQ, Invoy Technologies and LEVL all use electrochemical or semiconductor sensors tuned to detect breath acetone, a metabolic byproduct of fat oxidation that rises during ketosis and carries diabetes-relevant risk information for ketoacidosis monitoring. 2. **Wearable breath-analyte hardware (Wearable Breath Analyte Measurement):** - Invoy Technologies' patented wearable measurement device extends breath analysis beyond a single handheld reading toward more frequent or continuous sampling. 3. **Direct blood-glucose breath correlate (Breath Glucose Alert Devices):** - PREEVNT's ISAAC device pursues a technical approach aimed at a more direct blood-glucose alert claim, distinguishing it from the acetone/ketone-proxy devices that currently anchor the category's commercial base. 4. **Regulatory validation pathway (FDA Clearance Pathway):** - PREEVNT has publicly documented ISAAC's path through FDA review, illustrating the clinical-validation bar every device in this category must clear before its specific glucose or ketone claim can be marketed as a diagnostic rather than a wellness product. --- ## Value chains and production pipelines ### Industrial pipeline of an exhaled-breath glucose/ketone monitor (FDA 510(k)/De Novo / EU IVDR 2017/746) ``` ┌───────────────────────────┐ ┌───────────────────────────┐ │ 1. Breath sample │ ───> │ 2. Gas sensor detection │ │ collection │ │ │ └───────────────────────────┘ └───────────────────────────┘ │ ▼ ┌───────────────────────────┐ ┌───────────────────────────┐ │ 4. Alert/reading │ <─── │ 3. Signal processing & │ │ generation │ │ calibration │ └───────────────────────────┘ └───────────────────────────┘ │ ▼ ┌───────────────────────────┐ ┌───────────────────────────┐ │ 5. Regulatory clearance │ ───> │ 6. Diabetes management │ │ │ │ integration │ └───────────────────────────┘ └───────────────────────────┘ ``` #### Stage 1: Breath sample collection The user exhales into a handheld or wearable device, a non-invasive procedure requiring no blood draw and taking only seconds. #### Stage 2: Gas sensor detection An electrochemical or semiconductor gas sensor detects the target analyte — breath acetone for PranaQ, Invoy Technologies and LEVL, or PREEVNT's targeted glucose-correlate signal — at the trace concentrations present in exhaled breath. #### Stage 3: Signal processing and calibration The raw sensor signal is processed and calibrated against a validated blood-reference measurement (blood ketone or blood glucose), the step where each device's accuracy claim is established during clinical validation. #### Stage 4: Alert and reading generation The device outputs a reading or alert to the user's app — an elevated-ketone warning relevant to diabetic ketoacidosis risk, or, for PREEVNT's ISAAC, a glucose-trend alert. #### Stage 5: Regulatory clearance The device undergoes FDA 510(k) or De Novo review, or EU IVDR conformity assessment, with a direct blood-glucose claim (ISAAC) facing a substantially higher evidentiary bar than a general ketone/metabolic wellness claim. #### Stage 6: Diabetes management integration The reading informs diet, insulin dosing or ketoacidosis-risk management decisions, used alongside — not yet as a replacement for — standard fingerstick or continuous glucose monitoring.