The revolution of performance and metabolic analysis

Pricing starting at

5.495€

net

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One Product — Endless Possibilities

Built for professionals across industries — technology that understands your challenges and helps you achieve more.

Backed by triple-sensor precision — CO2, O2, Flow — with real-time app syncing

VO2 Max

Aerobic performance and endurance capacity

Fat & Carbohydrate Burn

Substrate utilization and energy balance

Resting Metabolic Rate

Daily energy expenditure at rest

How Accurate is the SpiroFit Analyzer?

It is not practical to provide a single accuracy figure for the SpiroFit Analyzer, as real-world conditions can vary widely and we anticipate our device being used in a variety of real-world scenarios.

Instead, we report precise accuracy for individual sensors under controlled settings. For complex metrics like VO2 Max, fixed accuracy claims may be misleading, so we only share sensor-specific accuracy values rather than overall figures for calculated results.

Sensor performance sets the limit for test device precision, though these systems do not fully reflect human use.

O2 Sensor

  • Typical Static accuracy of the O2 sensor: ±0.15 Vol.%
  • Measurement range: 0–35 Vol.% O2

CO2 Sensor

  • Typical Static accuracy of the CO2 sensor: ±0,1 Vol.%
  • Measurement range: 0–100 Vol.% CO2

Air Volume/Flow

  • Accuracy Volume ± 3% (Tested for Respiratory Frequency: 20-50 Breaths per minute)
  • Ventilation Flow : 30-920 Liters per minute
  • Tidal Volume: 0.25-10 Liter

External Calibration Not Required

Inhalation-Based Calibration

The SpiroFit Analyzer self-calibrates with each inhalation, leveraging air’s constant oxygen (20.95%) and carbon dioxide (0.04%) levels, which remain consistent across altitudes.

400 Measurements per Second

SpiroFit accurately differentiates between inhalation and exhalation at 400 measurements per second, outperforming slower devices. It also adjusts respiratory gas concentration calculations by considering humidity changes during inhalation.

O2 Sensor: Linear Calibration

The O2 measurement uses a linear sensor curve. Given 20.95% oxygen is fixed, the 0% oxygen calibration point (zero voltage) is easily determined.

CO2 Sensor: Thermal Conductivity

The CO2 sensor gauges air’s thermal conductivity. It uses inhaled air (0.04% CO2) as a reference for exhaled air, focusing on the inhalation-exhalation difference for relative measurement, which unlike absolute systems, prevents physical drift.

Factory Calibration & Testing

Each SpiroFit is automatically calibrated during use and factory-tested to ensure accuracy:

  • Devices are checked with a medical-grade flow-volume simulator.
  • Respiratory gas simulations are performed on every unit before delivery.
  • Two resting measurements are taken by test subjects.

Verified Quality & Accuracy

This process guarantees precise calibration with every inhalation and removes the need for manual adjustments. Sensor quality is verified during production and approved at the factory, ensuring each device meets strict standards for quality and measurement accuracy.

External Calibration Not Required

Inhalation-Based Calibration

The SpiroFit Analyzer self-calibrates with each inhalation, leveraging air’s constant oxygen (20.95%) and carbon dioxide (0.04%) levels, which remain consistent across altitudes.

400 Measurements per Second

SpiroFit accurately differentiates between inhalation and exhalation at 400 measurements per second, outperforming slower devices. It also adjusts respiratory gas concentration calculations by considering humidity changes during inhalation.

O₂ Sensor: Linear Calibration

The O2 measurement uses a linear sensor curve. Given 20.95% oxygen is fixed, the 0% oxygen calibration point (zero voltage) is easily determined.

CO₂ Sensor: Thermal Conductivity

The CO2 sensor gauges air’s thermal conductivity. It uses inhaled air (0.04% CO2) as a reference for exhaled air, focusing on the inhalation-exhalation difference for relative measurement, which unlike absolute systems, prevents physical drift.

Factory Calibration & Testing

Each SpiroFit is automatically calibrated during use and factory-tested to ensure accuracy:

  • Devices are checked with a medical-grade flow-volume simulator.
  • Respiratory gas simulations are performed on every unit before delivery.
  • Two resting measurements are taken by test subjects.

Verified Quality & Accuracy

This process guarantees precise calibration with every inhalation and removes the need for manual adjustments. Sensor quality is verified during production and approved at the factory, ensuring each device meets strict standards for quality and measurement accuracy.

Run Tests. Access Reports. All in One App.

The SpiroFit App guides the entire testing process — from initiating a session to generating visual reports. Whether measuring VO2 Max, Resting Metabolic Rate, or fuel usage, the app delivers instant, clear data synced to the cloud.

Install the app Sample Reporting

1

Start and monitor tests in real time

2

Instant access to VO2 Max, RMR, and metabolic profiles

3

Reports ready to share or export (PDF or Excel)

4

Advanced analysis platform included

5

Track Historical Data and Trends Over Time

6

Select from Standard Protocols or Create and Save Custom Protocols

7

iOS compatible

SpiroFit Packages

SpiroFit Principal Package

Complete system, ready for immediate use, including:

  • 1× SpiroFit Analyzer (“BreathPilot”)
  • 1× Hans Rudolph Performance Mask, Size S
  • 1× SpiroFit Adjustable Performance Sleeve
  • 1× Adapter for Hans Rudolph Performance Mask
  • 1× SpiroFit Resting Metabolic Mask
  • 1× SpiroFit Resting Metabolic Sleeve
  • 1× Heart rate monitor with chest strap
  • 1× Rechargeable battery set (2 batteries) with charging cable
  • 1× SpiroFit Carrier Case Small

5.495€

+ applicable taxes

SpiroFit Executive Bundle

Complete system for professional use with multiple athletes and mask sizes, including:

  • 1× SpiroFit Analyzer (“BreathPilot”)
  • 4× Hans Rudolph Performance Masks, Sizes Petite, XS, S and M
  • 4× SpiroFit Adjustable Performance Sleeves
  • 4× Adapters for Hans Rudolph Performance Masks
  • 1× SpiroFit Resting Metabolic Mask
  • 1× SpiroFit Resting Metabolic Sleeve
  • 1× Heart rate monitor with chest strap
  • 1× Rechargeable battery set (2 batteries) with charging cable
  • 1× SpiroFit Carrier Case Extra-Large with integrated compact inner case

5.995€

+ applicable taxes

SpiroFit ROI Calculator

Estimate your Year 1 and Year 2 profit from offering metabolic assessments

DISCOVER ROI CALCULATOR

Metabolic Analyzer Features Comparison

Complete Portability (No Wires, Back-packs, or Attached Computers)

Fully Mobile allows for Outdoor Field Testing

VO2 Final Measurements Immediately Available

VCO2 Final Measurements Immediately Available

Full CO2 + O2 Analysis

RMR (Resting Metabolic Rate) Providing True Values

RER (RQ) Data at Exercise

RER (RQ) Data at Rest

Detects True Ventilatory Thresholds

No Calibration Required

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

COSMED K5

NO

YES

YES

YES

YES

YES

YES

YES

YES

NO

VO2 MASTER

YES

YES

YES

NO

NO

NO

NO

NO

NO

NO

PNOĒ

NO

NO

NO

NO

YES

YES

YES

YES

YES

NO

KORR CC MAX

NO

NO

YES

YES

NO

YES

YES

NO

YES

YES

Ready to Get Started?

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Built for the Demands of Real-World Professionals

Track. Analyze. Improve.

    They Talk About Us

    Physio & Rehab Trainer

    Marcus Hirschbiel

    When working with our professional and high-performance athletes, we place the utmost importance on the highest standards. SpiroFit provides us with precise performance and metabolic analysis, which is essential for monitoring training and rehabilitation.

    Jr. World Champion – Skimo

    Finn Hösch

    SpiroFit allows me to accurately analyze my performance zones under real conditions – outdoors, on the mountain – and get the most out of my training. The device is super lightweight and compact. It helps me stand out from my competitors.

    Sports Scientist & Athletic Trainer

    Lukas Laue

    For me, SpiroFit combines practicality and reliable and valid data. This allows me to plan and analyze my athletes’ training with even greater precision. The accuracy and versatility of SpiroFit outperforms other systems by far.

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