A commenter asked.
My first one was an old Respirants that still works, I love having a spare.
My second one which I LOVE is a Puritan Good Night with the humidifer that matches it.
It is a super small and light unit but does the job. The doctor’s office hates to download but they don’t always know what they are doing. The whole bundle is about half the size of the other CPAP units.
I use a full face mask. Somewhere in the blog if you do a search it will tell you which one. I like it, other people hate it, but that’s the way it is with masks. The best thing about this one, is it only comes in one size and has an insert to change the size.