IAH,IA,IH

I'm a newbie,what's exactly mean IAH,IA an IH symbols?

AI Apnea Index -- number of apnea events per hour
HI Hypopnea Index -- number of hypopneas per hour

AHI Apnea Hypopnea Index -- the total number of AI and HI numbers added together/ per hour

Thanks Pugsy but what is an acceptable leaks ? .34 L/s is it ok?

tipaul wrote:what is an acceptable leaks ? .34 L/s is it ok?

ResMed machines subtract the intentional mask vent rate or flow so what you see being reported is all leak.
You want it as close to 0.00 as possible.
0.20 L/s will start affecting therapy. 0.40 and above and the machine can't compensate well for the leak.
So you want it for sure below 0.20 L/sec and preferably below 0.10 L/sec.

Respironics machines don't subtract the vent flow/rate so we have to do the math ourselves.

If you consistently have above 0.20 towards the 0.40 mark, your leak is significant enough to hinder the therapy pressure and will affect your results. It will allow events to occur and can possible skewer the results you do see.

Thanks again Pugsy.
I think the leaks comes from my mouth because during the night I wake up from the noise of the air passing out my mouth.
What is the best thing to do , a chin strap?

tipaul wrote:I think the leaks comes from my mouth because during the night I wake up from the noise of the air passing out my mouth.
What is the best thing to do , a chin strap?

Depends on just why you are leaking from the mouth.
If you are needing to breathe through your mouth because of serious nasal congestion, then you need a full face mask.
If you are just losing a bit of air because of mouth dropping open on occasion, then a chin strap might help.
All depends on just how serious of an issue the mouth leakage is. Chin straps aren't designed to stop you from opening your mouth. They are really more of a gentle reminder to keep the mouth shut.

If you tape your mouth and still have leaks, then it may not be from the mouth opening.

Sometimes chin straps are sufficient to help, sometimes people resort to taping their mouth shut.