Most CPAP analysis guides focus on CPAP and APAP users. If you're on a BiPAP — like a ResMed AirCurve 10 ST or VAuto — you've probably noticed that tutorials, forum posts, and tools often don't quite apply to your device. The data is there on your SD card; it's just that fewer tools support it.
AirwayLab supports AirCurve 10 EDF data. Here's how to use it.
What data does the AirCurve 10 record?
Like ResMed's CPAP range, the AirCurve 10 family records detailed session data to an SD card in EDF format. That data includes:
- Inspiratory and expiratory pressure (IPAP/EPAP) — the two pressure levels your machine delivers
- Pressure support— the difference between IPAP and EPAP across the session
- Flow rate waveform— your breathing signal, recorded continuously through the night
- Flow limitation — a description of partial upper airway narrowing during inspiration
- Respiratory events— including hypopneas and central events where applicable in your data
Because BiPAP delivers two pressures, the waveform and pressure data look different from a standard CPAP trace — but the underlying EDF format is the same, and AirwayLab parses it.
How to load your AirCurve 10 data
.edf files — into the drop zone.What you'll see
Once loaded, AirwayLab displays:
Session overview
Date, duration, and a top-line AHI summary.
Pressure support
How inspiratory support varied across the night.
Flow limitation
Described as a frequency measure across the session.
Flow waveform
Your full breathing signal, scrollable night-by-night.
RERA patterns
Respiratory effort-related arousals displayed as a visual timeline.
Everything shown is informational. AirwayLab describes what's in your EDF data — it doesn't interpret whether your BiPAP settings are appropriate for your needs, and it doesn't make therapeutic recommendations. If you see patterns that concern you, or want to understand what the numbers mean for your therapy, discuss them with your clinician or sleep specialist. They have the clinical context that the data alone can't provide.
Free, open, and in your browser
AirwayLab is free and always will be. Core analysis runs in your browser with no data leaving your device. The source code is open under GPL-3.0, so you can see exactly how the parsing and analysis work. No account, no subscription, no cloud upload required.
If you've been looking for a tool that actually reads BiPAP EDF files rather than defaulting to CPAP-only data, give it a try.
Read your AirCurve 10 data free
Drag in your SD card and see flow limitation, pressure support, and RERA patterns in your browser. No download, no account.
AirwayLab is informational only. Nothing displayed constitutes a clinical diagnosis or therapeutic recommendation. Always discuss your therapy data with your clinician for clinical interpretation.
Related reading
How to Read Your ResMed SD Card Data in Your Browser — step-by-step guide to finding and opening EDF files.
Analyse CPAP Data in Your Browser — No Download, No Cloud, No Account — how AirwayLab protects your privacy.
How to Read Your CPAP Data — full guide to PAP data metrics.
Glossary
Flow limitation — what it means and how AirwayLab measures it.
RERA — respiratory effort-related arousals explained.
NED Mean — per-breath negative effort dependence metric.