(05-14-2021, 10:01 PM)KingKongBingBong Wrote: Yes it's somewhat of an experiment! I try out different machines until I find something that works. They didn't have a better version available at the moment so I am using this one until a later date. If I did purchase a machine this week for example, I would get the most recent version.
Here is my latest data - I felt better waking up this morning than usual, but I did not feel dramatically different to how I wake up sometimes. I have woken up like this many times in the last 6-9 months without any machine. I also tracked the night before this; the data looks quite similar, AHI index 0 but it was only 3 hours of sleep.
My data looks weird between 7-8 and I believe this is because I was awake trying to fall back to sleep (in the past I've just taken it off! )
Can you tell us more about the third OSCAR screen capture that you posted:
http://www.apneaboard.com/forums/attachm...?aid=32246
The picture in the lower-left shows flow limits and leaks -- and your leak graph shows many, many leaks. I'm not very familiar with the output that comes from the S9 machine, but if that means that your mask is not sealed properly against your face then that is really bad.
#1 -- trying to sleep with a leaky mask is really hard! It makes noise, might channel air into your eyes, etc.
#2 -- the machine measures the pressure back at the machine end of the hose. If the amount of air escaping from the system is too high, then the machine can't deliver enough pressure at your end of the hose to do you any good. AND it also makes the data that it is measuring much harder to measure accurately.
The problem with the word "leak" is that we are using it to mean two different things.
If the mask does not seal properly and air comes out WHERE it's not supposed to come out, this is simply bad for the whole system and it can't do what it's designed to do. This is a problem.
But "leak" in the "Leak Rate" graph is referring to any air escaping from the loop of air between you and the machine. The problem with that is that the fundamental process of breathing can be thought of as a continuous cycle of "leaking". When you breathe, oxygen "leaks" IN to your body while carbon dioxide "leaks" OUT of your body. When you are wearing a CPAP mask, the air from the room is supposed to "leak" into the machine by being sucked into the machine by the pump, and the air that you are exhaling is supposed to "leak" out of the vent holes.
The different machines report the data out differently. I am most familiar with how my machine (a ResMed A10) reports the data. It only reports "leak" when it sees MORE air escaping than what is designed to let out your exhales. Other machines report the total amount of air escaping, and you have to subtract out the normal amount to see if too much is leaking.
But anyway, tell us about what you are experiencing with leaks.