ResMed AirCurve 11 VAuto
See your full AirCurve 11 VAuto therapy data
CPAP Clarity reads the EDF files from your AirCurve 11 VAuto SD card and shows you everything myAir leaves out: pressure trends, leak trends, obstructive vs central apnea breakdown, breath timing, flow limitation, and your actual machine settings, including minimum EPAP, maximum IPAP, and pressure support.
What CPAP Clarity shows you
The VAuto firmware tells obstructive and central apneas apart and scores hypopneas separately, so you see exactly what kind of events occurred each night, not just the combined AHI number myAir shows.
Watch your therapy pressure move through the night as the AutoSet algorithm responds to flow limitation, snoring, and obstructive apneas. Because pressure support is fixed, the trace follows your EPAP adjustments exactly, offset by your PS setting.
Track your mask seal over time. Median leak shows typical performance; the 95th percentile catches the bursts that disrupt therapy.
The VAuto records your inspiratory time and inhale-to-exhale ratio, channels the AirCurve 11 ASV does not carry. CPAP Clarity charts both so you can see your breathing pattern through the night.
Flow limitation is one of the main signals the VAuto responds to. CPAP Clarity charts the flow limitation index so you can see the partial obstructions that drove pressure changes.
Your breathing rate, tidal volume, and minute ventilation over the night. These metrics help you and your provider understand ventilation patterns.
Your AirCurve 11 records its therapy mode, minimum EPAP, maximum IPAP, pressure support, TiMin and TiMax, mask type, and humidity settings. CPAP Clarity reads these directly from the SD card.
Nightly usage hours, 30-day compliance rate against the Medicare 70% threshold, consistency scoring, and weekend vs weekday patterns.
How to import your data
Remove the SD card
Power the machine off. The SD card sits behind a small removable cover on the left side of your AirCurve 11, the end opposite the humidifier water tub, when you face the screen. Take the cover off, press the card in to release it, and pull it out. Any standard full-size SD card reader works.
Insert into your computer
Plug the SD card into a USB card reader connected to your computer. You should see a drive named DATALOG or similar appear.
Drop the folder on CPAP Clarity
Open CPAP Clarity, go to the import page, and drag the entire SD card folder onto the drop zone. CPAP Clarity reads everything automatically.
Frequently Asked Questions
Does CPAP Clarity work with my AirCurve 11 VAuto?
Yes. CPAP Clarity fully supports the ResMed AirCurve 11 VAuto, and the numbers it shows were cross-checked against OSCAR on real VAuto SD card data, including nights split across multiple sessions. The AirCurve 11 ASV is supported too. The AirCurve 11 S and ST are not yet supported: they run different therapy profiles, and we only ship support we have validated on real data.
What is VAuto mode, exactly?
VAuto is ResMed's auto-adjusting bilevel mode. The machine delivers two pressure levels: a lower one while you exhale (EPAP) and a higher one while you inhale (IPAP). Through the night, ResMed's AutoSet algorithm moves your EPAP up and down in response to flow limitation, snoring, and obstructive apneas, while the gap between the two pressures stays fixed. Your clinician sets the floor (minimum EPAP), the ceiling (maximum IPAP), and the size of the gap (pressure support).
What is pressure support, and how is it different from EPR?
Pressure support is the fixed difference between your inhale pressure (IPAP) and exhale pressure (EPAP). On the AirCurve 11 VAuto it is adjustable from 0 to 10 cmH2O and stays the same all night. EPR on the AirSense machines looks similar but is a comfort feature capped at 3 cmH2O. On a bilevel machine the pressure gap is part of the therapy itself, which is why pressure support is a prescribed clinician setting rather than a comfort option.
What does the AirCurve 11 VAuto record on the SD card?
The VAuto writes detailed therapy data to its SD card automatically, every night. The EDF files on the card carry a high-resolution flow and pressure waveform (sampled 25 times per second), plus channels for leak, respiratory rate, tidal volume, minute ventilation, snore, flow limitation, inspiratory time, and I:E ratio, and per-event annotations that distinguish obstructive from central apneas. Two honest limits: the VAuto firmware does not score RERAs, and it does not log Cheyne-Stokes respiration episodes the way the AirSense machines do.
Can I see my actual pressure settings?
Yes. The SD card records the settings your machine is running: therapy mode, minimum EPAP, maximum IPAP, pressure support, TiMin, TiMax, mask type, and humidity. CPAP Clarity displays them exactly as the machine reports them, so you can confirm what your machine is actually set to. Changing them is a different matter: bilevel settings are prescribed, so talk to your clinician before adjusting anything.
How is the VAuto different from the AirCurve 11 ASV?
They are different prescriptions. The VAuto treats obstructive sleep apnea with auto-adjusting bilevel pressure and a fixed pressure support. The ASV (adaptive servo-ventilation) is for central and complex sleep apnea: it automatically varies pressure support to stabilize your breathing. Their data differs too: the ASV adds a target ventilation channel but drops the breath-timing channels, and its firmware does not separate obstructive from central apneas the way the VAuto does. CPAP Clarity reads both machines.
How is the AirCurve 11 VAuto different from the AirSense 11?
They share the Air11 platform: touchscreen, myAir app, and the same SD card data format. The therapy is the difference. The AirSense 11 is a CPAP: one pressure level, auto-adjusted, with an optional small exhale relief (EPR). The VAuto is a bilevel: two distinct pressure levels with a larger, prescribed gap between them, for people who benefit from more pressure support than a CPAP provides. Both record equally detailed data to the SD card, and CPAP Clarity reads both.
Do I need the SD card, or can I use myAir?
You need the SD card. myAir shows a daily 100-point score built from usage hours, mask seal, events per hour, and how often the mask came on and off: a summary, not your therapy data. The machine does send data to your care provider's clinical system over its cellular connection, but the only way to read the detailed files yourself is the SD card. It sits behind a small removable cover on the left side of the machine, the end opposite the humidifier water tub, when you face the screen. You do not need to remove the water tub.
Is my data safe?
All processing happens in your browser. Your CPAP data never leaves your computer and is never uploaded to any server. CPAP Clarity stores your data in your browser's local storage so you can return to it later without re-importing.
Related Reading
- AirSense 11 vs AirCurve 11 : CPAP vs bilevel on the same platform, and what it means for your data.
- AirCurve 11 ASV Review: Reading Your ASV Data : the VAuto's adaptive sibling and how its data differs.
- ResMed AirCurve 10: BiPAP Data Guide : what bilevel machines record, including I:E ratio and inspiratory time.
- Beyond myAir: What Your CPAP Actually Records : everything the myAir score leaves out and how to see it.