RE: Worried about periodic breathing / CA patterns
You've checked the hose itself, correct? Either the simple block one end and blow through the other, or swap in a new one to see if the mystery leaks disappear.
Mask Primer
Positional Apnea
Attach OSCAR, etc.
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RE: Worried about periodic breathing / CA patterns
Yeah I've run every check I can think of (including that) and I also have no issue with any other mask, just this type.
RE: Worried about periodic breathing / CA patterns
Are the exhalation valves not shutting when the pressure is turned on? In the elbow if the F20 there are 2 silicone valves that close when the pressure is turned on. Maybe they are defective and you just need to replace the elbow.