Forced oscillometry
alveoflow®
Explore airway mechanics through quiet breathing.
alveoflow® measures respiratory resistance and reactance during normal tidal breathing — helping clinicians assess patients who may find forced manoeuvres difficult.
A different perspective on lung function. Quiet breath. Bigger insights.
A simple test
that fits more patients.
Designed around a natural breath.
alveoflow® makes testing simple and comfortable for patients, with a guided workflow for clinical teams.
- 1Prepare patientFit a nose clip and position the patient comfortably.
- 2Breathe normallyThe patient breathes quietly through the mouthpiece for a short period.
- 3Review qualityCheck test quality and key parameters in real time.
- 4Interpret and shareGenerate a structured report and share securely via the alveofit® platform.
What alveoflow® measures.
Three complementary views of respiratory mechanics during normal breathing.
Illustrative curves showing the shape of each measurement — not patient data.
One system. Guided test. Structured report.
Integrated hardware and software work together to guide the test, check quality in real time, and generate a clear, structured report.
- Intuitive touchscreen interface. Guides the user through the test.
- Real-time quality assessment. View key parameters as the test progresses.
- Structured reports. Save and share via the alveofit® platform.
From measurement to clinical workflow.
alveoflow® fits into daily practice, from test to follow-up.
Run a quick, quiet-breathing test.
Check test quality and key parameters.
Generate a structured report in the alveofit® platform.
Compare over time and integrate into patient care.
Illustrative interface.
Where quiet-breathing assessment can help.
A wide range of clinical and research settings.
Evidence and resources.
Access the information you need.
Frequently asked questions.
Quick answers to common questions about alveoflow®.
What is forced oscillometry (FOT)?
A non-invasive test that applies gentle pressure oscillations while the patient breathes normally, and measures how the respiratory system responds. It reports resistance and reactance across a range of frequencies, without a forced manoeuvre. How it works →
How long does a test take?
The measurement runs in well under a minute of quiet breathing, and the full workflow — patient seated, filter fitted, measurement captured, report generated — completes in under 90 seconds. There is no rest-and-repeat cycle between efforts, because there is no effort.
What patient preparation is required?
A nose clip and a single-use bacterial/viral filter. The patient sits upright, supports their cheeks, and breathes normally through the mouthpiece. No coaching of a manoeuvre is needed.
What does the report include?
Resistance and reactance across the frequency range — R5, R20, R5−R20, X5, AX and Fres — with pre- and post-bronchodilator comparison and the intra-breath traces. Reports export as PDF and CSV. Reading a report →
More about alveoflow®
alveoflow® Digital FOT System
Oscillometry complements spirometry; it does not replace it. Where both are indicated, the alveoflow® runs the pair in one sitting, which is the reason for putting them on one platform
Coaching, repeat attempts, acceptability and repeatability criteria
Difficult in young children, frail or elderly patients, and anyone breathless at rest
Effort artefact is a common cause of an uninterpretable test
Patient breathes quietly through the mouthpiece for 15–30 seconds
No coaching, no maximal effort, no learned technique
Viable where spirometry is not, including serial testing in the same visit
Resolves resistance separately at low and high frequency
Pediatric lung function testing
Small airway disease detection
Why Choose alveoflow® FOT?
Enables early detection of airway abnormalities
Suitable for patients unable to perform spirometry
Provides comprehensive respiratory mechanics analysis
Improves workflow efficiency in pulmonary testing
Devices, accessories and consumables for alveoflow® — forced oscillometry and spirometry.
alveoflow® combines forced oscillometry (FOT) and spirometry in a single unit. Oscillometry measures respiratory resistance and reactance during quiet tidal breathing, so it works with patients who cannot perform a reliable forced manoeuvre — young children, the elderly, and anyone acutely breathless.
Reported parameters follow ERS 2020 technical standards: R5, R20, R5−R20, AX, Fres and coherence, alongside conventional spirometry indices from the same session.
For specifications, regulatory status and full product detail, see the alveoflow® product page. Technical support is available at support@alveo.fit.
The right airway resistance measurement device should do more than generate reports. It should help you identify respiratory changes earlier, simplify testing, and support confident clinical decisions. The alveoflow® FOT System is designed to deliver exactly that through better clinical insights and efficient workflow
Detect Airway Dysfunction Earlier with the alveoflow® FOT System
Choose our FOT System with Spirometer to:
Evaluate airway mechanics during natural breathing
Assess lung function through integrated testing
Gain more information from a single diagnostic solution
The alveoflow® FOT System supports advanced respiratory assessment across different healthcare settings. Its integrated capabilities make it suitable for routine and specialised pulmonary evaluation
The alveoflow® FOT Device combines advanced airway oscillometry and spirometry in one intelligent platform. It is designed for healthcare professionals who need deeper respiratory insights from every assessment. Our Pulmonary Diagnostic Equipment helps simplify respiratory testing while expanding clinical understanding. It supports hospitals, pulmonary clinics, diagnostic centres, and research facilities looking to strengthen respiratory evaluation with one comprehensive platform
The alveoflow® Forced Oscillation Technique Device captures airway mechanics with greater precision. It supports earlier identification of subtle respiratory changes and provides deeper clinical insights beyond conventional lung function testing
Do you want to perform two essential respiratory assessments from one system? The alveoflow® combines spirometry and Forced Oscillation Technique in one platform. Our Pulmonary Diagnostic Equipment simplifies testing while reducing equipment dependency
The alveoflow® Forced Oscillation Technique Device captures resistance and reactance throughout every breathing cycle. This additional respiratory information supports deeper clinical interpretation and more comprehensive patient assessment
Modern healthcare environments demand speed without compromising quality. That’s alveofit’s promise. The streamlined workflow of the alveoflow® helps reduce testing time and supports improved patient throughput. It allows clinicians to spend more time interpreting results and delivering patient care
The compact standalone design of the alveoflow® integrates easily into hospitals, pulmonary clinics, and diagnostic laboratories. Its deployment is flexible, ensuring advanced respiratory diagnostics are easier to integrate into existing workflows
Evaluating bronchodilator response is an essential part of respiratory care for many patients. Our FOT System supports structured pre- and post-bronchodilator comparison, helping clinicians review functional changes with greater clarity and confidence
Respiratory assessment requirements vary throughout life. The alveoflow® FOT Device supports evaluation across a broad patient population from adults to kids. This makes it a valuable addition to healthcare practices that manage both adult and pediatric respiratory care
Why Should Healthcare Professionals Choose alveoflow® FOT System
The alveoflow® FOT System is designed for practices that expect more from pulmonary diagnostics. Our airway resistance measurement device combines advanced technology with practical clinical value
alveoflow® FOT Sys | Advanced Pulmonary Diagnostic Equipment +91 (876) 711 5748 info@alveo.fit Become a Partner Distributor Partner 0 alveoflow® FOT System – Oscillometry + Spirometry alveoflow@ Move beyond conventional lung function testing with the alveoflow® FOT System. Designed for healthcare professionals who need deeper respiratory insights, improved airway assessment, and greater diagnostic confidence. alveoflow® FOT – Advanced Lung Function Testing Made Effortless BREATHING INSIGHT REIMAGINED Get a Quote Tag: alveoflow@ Share on Facebook Share on twitter
See alveoflow® in your respiratory workflow.
Our team can show you how alveoflow can support your clinical or research goals.