Does No Large Leaks = No Mouth Breathing?

[Cedric]

Finally got my card reader and Encore Pro setup and have 3 days of data to look at.

Encore Pro Analyzer shows that the average leaks are pretty much in line with my mask's flow rate and pressure. Large leaks are zero each day.

Does the absence of large leaks indicate that I'm not mouth breathing?

I did my titration sleep study with the Swift and there was nothing said about needing a full face mask.