Different masks resulting in different pressure or flow

[CPAP_Pseudo]

Hi guys,

I have been using the Quattro mask for 7 years now. I like the mask but over the years I have now developed a small bump in the middle of my forehead due to the two pressure points from the T-bar center where no pressure is applied. In other words where the mask touches my forehead is fine but in between those two touch points, I have now a small bump on my forehead which is very annoying as it doesn't go away. So as a result I tried new masks. My results are confusing and interesting at the same time. I should point out that my machine is set to a pressure of 15 to 18 by the doctor for the last 7 years.

Here is my old mask:

Here are the machine readings (disregards the time stamps as my clock is out of sync):


Here is my new mask I have tried:

Here are the machine readings (disregards the time stamps as my clock is out of sync):


Here is a special mask machine readings I really wanted to try and I am really impressed by that mask:

Here are the machine readings (disregards the time stamps as my clock is out of sync):


If you compare the the 3 readings it is very interesting...
- The new mask has a much lower leakage but the pressure is constantly at about 16.
- The old mask has an extreme high leakage and the pressure varies from 0 to 12.
- The special mask has a leakage right between the 2 other masks and the pressure varies from 0 to 8.

Having read previous posts here about pressure vs flow and longer test periods, I wanted to share those results and get some feedback as I will test them more over time. I have tested those masks now each for 1 night each and more tests will come but I am really surprised about the differences between those masks in pressure/flow, which is also the reason why I posted a picture of each mask to avoid the debate about nasal, t-bar or full face mask, etc.

Any feedback is welcome! Thanks in advance.

[ChicagoGranny]

- The old mask has an extreme high leakage and the pressure varies from 0 to 12.
- The special mask has a leakage right between the 2 other masks and the pressure varies from 0 to 8.

There is something wrong with the data. Your machine cannot be set below 4.0 cm.

[CPAP_Pseudo]

That's a very valid point. I am using sleepy head software. Any other software you can recommend? I can check if the data is wrong or if the software misinterprets the data wrong.

[Dog Slobber]

That's a very valid point. I am using sleepy head software. Any other software you can recommend? I can check if the data is wrong or if the software misinterprets the data wrong.

Upgrade to OSCAR, it's based on SleepyHead but has addressed a lot of the bugs within SleepyHead.

I don't know if it will address some of the incorrect 0-pressure data within your existing data or not.

OSCAR has the same general look and feel as SleepyHead, so there won't be any problems for you using it.

https://www.sleepfiles.com/OSCAR/