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A free reader for your CPAP machine's SD card

Know what your CPAP did last night.

Put in the card from your CPAP machine and read what happened while you slept, next to your oximeter or your ring, in plain English.

Your data never leaves your browser. Nothing is uploaded.

Last night

AirSense 11 AutoSet, with an Oura Ring and an O2 Ring

Sample night
5breathing eventsin 7h 42m on the mask

0.6 an hour. Three obstructive, one hypopnea, one central, and the 4:44 AM one was followed by a dip in oxygen.

A sample night, hour by hour: five breathing events, sleep stages from a ring, and oxygen from an oximeter, mask on at 10:00 PM and off at 5:42 AM. Sample numbers, not yours.

Events an hour

Tonight0.6Usual0.9 to 2.3

A little under your usual. Under 5 is the mark the AASM associates with well-controlled therapy.

Hours on the mask

Tonight7h 42mUsual6h 42m to 7h 24m

Over your usual. Medicare counts nights of 4 hours or more.

Typical mask leak

Tonight6.5 L/minUsual7.8 to 9.9

Under your usual.

Import your CPAP data

Take the card out of your CPAP and put it in a card reader, then choose the whole card or a .zip of it, not the DATALOG or SETTINGS folder inside.

Read on this device only. Nothing is uploaded, and the card is not changed.

Other ways to bring data in

An oximeter or wearable file

An Oura ZIP or Trends CSV, a Wellue or EMAY file, an Apple Health export

A card copied to the cloud

Google Drive, iCloud, OneDrive or Dropbox

Download it to this computer first

A Wi-Fi SD card

EZShare or a similar tool that copies the card for you

Automate it over Wi-Fi

Machines and devices it reads

CPAP & bilevelAirSense 10 & 11, AirCurve 10, AirCurve 11 ASV, AirCurve 11 VAuto, ResMed AirMini (travel, usage only), AirStart 10 (summary only), ResMed S9 (AutoSet, Elite), BMC E-20A & G3 A20, Luna G3, Yuwell YH-450, YH-680/690, YH-680B, YH-725, YH-920, Sefam S.Box AUTO, Löwenstein Prisma Smart, Löwenstein prisma20A, Philips DreamStation, Philips DreamStation 2, Philips System One 60 Series
Pulse oximetryWellue O2 Ring, LOOKEE O2Ring, OxySmart, O2Ring S, O2Ring 5103, Checkme O2 Max, EMAY SleepO2
WearablesOura Ring, Apple Watch, Fitbit, Pixel Watch, Garmin, Samsung Galaxy Watch, RingConn
Have a different machine? Send us its card
  1. Take the SD card out of your machineDo it in the morning, after the machine has finished writing the night.
  2. Put it in a card readerA small reader plugs into a computer, an iPhone or an Android phone. Many laptops have a slot already.
  3. Choose the whole card hereThe nights are read and explained in a few seconds. Then the card goes back in the machine for tonight.

Every night, in sentences a person can read.

  • Breathing events (AHI), leak, hours and pressureWhat the machine saw, with the time of each event and your own usual range beside every number.
  • Oxygen from an oximeterYour overnight oxygen on the same clock as the machine, so you can see whether a dip followed an event.
  • Sleep stages from a ring or a watchDeep, light and REM sleep from an Oura Ring, Apple Watch, Fitbit, Garmin, Samsung or RingConn, laid under the night.
  • A therapy report for your doctor, and a Copy for AIOne PDF of your nights to bring to your doctor, and a plain text version to paste wherever you want a second read.

Your health data never leaves your device.

This page does the reading. The card's files are opened by your browser, on your computer or phone, and the nights are kept there. There is no upload and no account, and nothing on our side could hold a copy. The therapy report is made the same way, in your browser, when you ask for it.

How your data stays private
  1. Your SD cardThe machine's nights, as it wrote them.
  2. This browser tabOpens the files and explains them, on your computer or phone.
  3. YouAnd whoever you choose to show.

Machines and devices it reads

Is my machine on the list?
ResMed
AirSense 11, AirSense 10, AirCurve 10, AirCurve 11 ASV, AirCurve 11 VAuto, AirMini (usage only), AirStart 10 (nightly summary), S9
Philips
DreamStation, DreamStation 2, System One 60 Series
Löwenstein
Prisma Smart, prisma20A
React Health and BMC
Luna G3, E-20A, G3 A20
Yuwell
YH-450, YH-680/690, YH-680B, YH-725, YH-920
Sefam
S.Box AUTO
Pulse oximeters
Wellue O2 Ring, OxySmart, O2Ring S, O2Ring 5103, Checkme O2 Max, EMAY SleepO2
Rings and watches
Oura Ring, Apple Watch, Fitbit, Pixel Watch, Garmin, Samsung Galaxy Watch, RingConn

More devices coming soon. Resvent iBreeze is on the roadmap. Have a different machine? Send a copy of its SD card and we can work on adding it.

Read last night.

Choose your card, or look at the sample night first. Either way it takes less than a minute.

Start here

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