SD Card Data
The detailed therapy data stored on your ResMed PAP machine's SD card, including breath-by-breath flow waveforms, pressure data, and machine settings.
What Is SD Card Data?
ResMed PAP machines store detailed therapy data on an SD card in the DATALOG folder. This data is far more detailed than what the machine transmits to the cloud (via myAir or AirView). The SD card contains the raw breath-by-breath flow waveform sampled at 25 Hz (25 data points per second), which is the data that makes flow limitation analysis possible.
The SD card data includes: BRP.edf files (flow and pressure waveforms for each recording session), STR.edf (machine settings, session summaries, and machine-reported metrics), EVE.edf (machine-scored respiratory events), and Identification.tgt (device model and serial number). One night of data typically uses 20 to 50 MB.
To use AirwayLab, you remove the SD card from your ResMed machine (behind a small door on the side), insert it into a computer via an SD card reader, and upload the DATALOG folder. AirwayLab processes everything in your browser without uploading the data to any server.
How AirwayLab Measures This
AirwayLab processes the entire DATALOG folder structure from the SD card. It finds and groups EDF files by recording session, assembles sessions into clinical nights (using the night-grouper), extracts flow waveforms from BRP.edf, reads settings from STR.edf, and reads events from EVE.edf. All processing happens in the browser via Web Workers.
Try it with your dataFrequently Asked Questions
How do I get data from my ResMed SD card?
Remove the SD card from the slot on the side of your ResMed machine. Insert it into your computer using an SD card reader (built-in or USB adapter). When uploading to AirwayLab, select the DATALOG folder. AirwayLab automatically finds and groups the relevant files by night.
Is SD card data more detailed than myAir?
Yes. The SD card contains raw breath-by-breath flow waveforms sampled at 25 Hz. myAir only shows summary statistics (AHI, usage hours, mask fit). The waveform data on the SD card is what makes detailed flow limitation analysis possible.
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Medical Disclaimer
AirwayLab is not a medical device and is not FDA-cleared or CE-marked. It is provided for educational and informational purposes only. The analysis results should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult qualified healthcare providers regarding your sleep therapy and any changes to PAP settings.