Hi there! I understand your myAir app hasn't been downloading your therapy information for the past three days. Let's get this sorted out together.

To start, could you please confirm if your CPAP machine is powered on and if it's in a location with good wireless or Bluetooth coverage? Also, is your phone's airplane mode off, and are you connected to a stable Wi-Fi or mobile network? Sometimes, if the machine stays plugged in for a long time, it can help to unplug it for about 40 seconds and then plug it back in to reset the connection.

Here’s a step-by-step to try:

1. Power-cycle your CPAP machine: Unplug the power cord, wait about 40 seconds, then plug it back in. This can refresh the device’s connection to the app.
2. Restart your phone: Close the myAir app, then restart your Android device.
3. Confirm network and Bluetooth settings: Make sure your phone's Bluetooth is on and the myAir app has permission to use it. Also, ensure airplane mode is disabled and that you have a steady internet connection.
4. Reopen the myAir app: Open it fresh and try syncing your data again.
5. Check for app updates: Visit the Google Play Store and make sure the myAir app is updated to the latest version.
6. Try reinstalling the app: If the above doesn’t help, uninstall and reinstall the myAir app, then log back in.

Have you tried any of these steps already? If so, which ones? That way I can help you with the next possible solutions.

If after these steps the issue persists, we might want to check if there’s any service downtime or account syncing issues, and I can guide you on contacting myAir support if needed.

Let me know how it goes!