It turns out my baseline with no leaks is about 55 at around 8 cmH20. To find this number I sat in a chair awake with my mouth shut and no mask leaks. Turns out my data for the last 56 days for average leaks is 55.1. Of course there are times when I leak and it goes up more than we probably would like. My average AHI is 2.2. I know this is pretty good but there are times when I am leaking from my mouth or mask. Having read a lot of posts on how you can feel better the lower you get your AHI I decided to try just that. Except I got worse readings than usual.
First test, having seen on another forum some people test for mouth leaks using water proof tape (some prefer it all the time over a chin strap). So I tried that one night. My AHI was 4.0 I had 24 hypopnea's. My leak rate was close to my normal but did hang around a little less than 60 lpm and did go up to around 70 for a little later in the night. The tape maybe started coming loose. Not sure.
Then I tried the Ruby Adjustable chin strap. My AHI jumped to 5.6 with 35 hypopnea's. My pressures also went up to about my max setting of around 15 whereas my pressure averages around 8-9 cmH20. On one of the supplier websites it did state that chin straps can cause problems with some people.
Last night I tried a Apex Wizard 220 full face mask. My AHI was 3.64 with 19 hypopnea's.
So, I've gotten results that are just the opposite of what I wanted or expected. What's up with that?
Course it's sometimes hard to go by just one test, but there is definitely a pattern here.
Using the FFM was comfortable though and it was obvious that I had no leaks. I will do a lot more experimenting with this. I believe in general it is a keeper in my arsenal of OSA goodies.
In the end I know the important thing is not the numbers but how you feel. Turns out I felt really good after using the chin strap, but also realize that there are other things that could have affected that.
I did not feel that good after using the FFM but then again other factors could affect that such as my blood sugar levels.
I am thinking at this point. Forget a chin strap. Stick with a nasal mask unless I have a stuffy nose or am having more periods where I open my mouth. Also, though the FFM tends to keep my lips shut which is a good thing.
I have put way more time researching and testing things out that I really wanted to do but was hoping for better results. I guess it's good I did it but sure isn't what I figured would happen.