3 questions please..

1. About a month ago, perhaps more, as my hearing is not what is used to be to, started to notice a whistling noise coming from my machine and finally tonight actually looked at it and yes its getting louder but coming from my water tank area and wondering if its just heating up the element, albeit had not heard this before? So I unplugged it and powered on and the noise has gone? Will see tonight..just asking? Not a big deal but hadn't heard this so loud before?

2. I found here some great info re settings on humidity levels and climate control(as opposed to on auto)so 8 days ago adjusted mine and couldn't believe the difference and wondered if that's partly the reason for Question No. 1 above, as my apnoeas are way, way down and a few days ago at 0.30. Unheard of for me but since last Wednesday gone from 1.3 events then Friday to 1.6 events and last night to 3.1 events and could this be because the humidity has been increasing in my area each day? Its now over about 62 relative humidity inside and wondered should I adjust accordingly as it dropped to around 50-54 degrees humidity last week.

I must admit, I do not understand this stuff at all.

3. For whatever reason, my water chamber(not complaining) does not evaporate nearly as fast as it used to. In fact I can use 2 nights worth(7-8 hours) and its not filled to max. Plus a poster here said I didnt have to throw it out each night and replace with fresh.

Max Ipap 14.00 Min Epap 6 Starting at 5. PS 4. Trigger and Cycle(again not sure what this means, I changed to high from Medium and worked a treat). Ramp time set at 20 mins. Climate control now set to manual with Tube temp at 76 degrees and humidity level is at 2. The humidity level is at 76%(SW. Florida) where we are and the dew point is at 62 degrees.

Somehow I think the whole humidity aspect is involved and trying to understand how to adjust it myself as the levels here adjust daily and its gets really hot soon and humid. I have noticed that having a humidifier by my bipap machine that spews out wet mist has also helped and the dry eye aspect much better.

Sorry for all the questions...

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

started to notice a whistling noise coming from my machine and finally tonight actually looked at it and yes its getting louder but coming from my water tank area

The humidifier for the model 11 can be tricky to seat. Make sure it is seated firmly.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

wondering if its just heating up the element

This would be unusual.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

gone from 1.3 events then Friday to 1.6 events and last night to 3.1 events

On a day-to-day basis, these numbers are not statistically significant. What is the breakdown of AHI - how many central apneas?

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

humidity aspect

Do you even need the humidifier in Florida? I never use mine and there are days during the winter when the humidity level in my bedroom is 30%.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

the dry eye aspect much better.

Your mask might be leaking into your eyes, or the mask venting could be bouncing off bedding material and back into your eyes.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

Max Ipap 14.00 Min Epap 6 Starting at 5. PS 4. Trigger and Cycle(again not sure what this means

Check if some of these items are in the glossary - wiki/index.php/Category:CPAP_Definitions

If not, ask again.

ChicagoGranny wrote: ↑

Mon Feb 24, 2025 3:14 pm

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

Max Ipap 14.00 Min Epap 6 Starting at 5. PS 4. Trigger and Cycle(again not sure what this means

Check if some of these items are in the glossary - wiki/index.php/Category:CPAP_Definitions

If not, ask again.

Brill......thx so much....got a lot to study. Certainly helpful. Trigger and Cycle not mentioned.

ChicagoGranny wrote: ↑

Mon Feb 24, 2025 3:12 pm

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

started to notice a whistling noise coming from my machine and finally tonight actually looked at it and yes its getting louder but coming from my water tank area

The humidifier for the model 11 can be tricky to seat. Make sure it is seated firmly.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

wondering if its just heating up the element

This would be unusual.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

gone from 1.3 events then Friday to 1.6 events and last night to 3.1 events

On a day-to-day basis, these numbers are not statistically significant. What is the breakdown of AHI - how many central apneas?

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

humidity aspect

Do you even need the humidifier in Florida? I never use mine and there are days during the winter when the humidity level in my bedroom is 30%.

bran wrote: ↑

Sun Feb 23, 2025 6:59 pm

the dry eye aspect much better.

Your mask might be leaking into your eyes, or the mask venting could be bouncing off bedding material and back into your eyes.

Wednesday 19th. CA 0.27 OA 13 Total time in apnoea 0.38
Thursday 20th CA 0.66 OA 0.66 2.53
Friday 21st. CA 0.44 OA 1.22 5.25
Sat. 22nd CA 0.22 OA 2.20 8.22
Sun. 23rd CA 1.40 OA 1.30 7.23

Dont know how to format.....but last figures are total time in apnea per Oscar.

Im not very good at the computer stuff and one day soon will learn how to show you here the Oscar details. Will get there as eyesight better. Plus still trying to understand all this stuff so please bear with me. Twice last year I went to a sleep place and they recorded in one night a total of 343 Obstructive Apneas and recced my machine but they dont use Oscar software or the Aussie sleep app and dont seem to understand the Aircurve 11, plus there is so little info online(youtube etc) in comparison to other machines, and I have gone a way back on this great forum and seen little discussion re my machine here, so again, forgive the questions and a really stupid one, but how do I turn the humidifier off? I know how to get into the professional settings(they were annoyed that I did this myself and wanted me to come in(1 hour away and no doubt charge medicare) My settings are set to 2 level. Set it to off?

You mention do I need to even use the humidifier in Florida? Its showing 62 degrees in my bedroom? Last night again, I can hear the noise but will try to reseat as you mention. Also noticede some rust marks on the bottom of the plate.

Last question. I just found out how it works with my Sleep place I originally went to. The Aircurve 11 was first rented by me(think they charge Medicare) for the first 13 months or so..started last April, then its mine? Can I go back and get another one as in different model? For whatever reason? Before April?

Many thx..indeed. You have always been so helpful CG!

bran wrote: ↑

Mon Feb 24, 2025 6:30 pm

[...] Trigger and Cycle not mentioned.

See this link. Basically, the lower the setting, the more effort (added pressure) it will take to trigger the IPAP or the less effort (subtracted pressure) it will take to trigger the EPAP level. Most people prefer this less sensitive because they are bothered by the machine "forcing itself" on them; I prefer it as high as possible as I am prone to central apneas and I need the machine to "take initiative" and help me. You may need to also adjust the timings (Ti min/max) to allow for deeper breaths.

McLseepy

bran wrote: ↑

Mon Feb 24, 2025 7:16 pm

Aircurve 11

Do you know why an AirCurve was prescribed? This is a more expensive machine that the ResMed APAP. I haven't seen anything in this thread that would indicate you need an AirCurve.

McSleepy wrote: ↑

Tue Feb 25, 2025 1:02 am

You mention do I need to even use the humidifier in Florida? Its showing 62 degrees in my bedroom?

Humidity needs vary with the individual. You could turn it down a notch each night. If you get dry nasal passages, turn it up to the previous setting. It's a trial and error process to find the lowest setting that suits you.

bran wrote: ↑

Mon Feb 24, 2025 7:16 pm

but how do I turn the humidifier off? I know how to get into the professional settings(they were annoyed that I did this myself and wanted me to come in(1 hour away and no doubt charge medicare) My settings are set to 2 level. Set it to off?

For your model, there are instructional videos on YouTube.

bran wrote: ↑

Mon Feb 24, 2025 7:16 pm

m not very good at the computer stuff and one day soon will learn how to show you here the Oscar details.

Go easy on yourself. Get a free account at SleepHQ.com, upload your SD card, and then post the link to the analysis in this thread. The link will have all your personally identifying information redacted. The link also allows us to see more than an OSCAR screenshot. You don't have to learn how to format, how to use a photo-sharing page, and how to post screenshot here.

ChicagoGranny wrote: ↑

Wed Feb 26, 2025 4:18 pm

McSleepy wrote: ↑

Tue Feb 25, 2025 1:02 am

You mention do I need to even use the humidifier in Florida? Its showing 62 degrees in my bedroom?

Humidity needs vary with the individual. You could turn it down a notch each night. If you get dry nasal passages, turn it up to the previous setting. It's a trial and error process to find the lowest setting that suits you.

I believe you have your quotes cross-wired.

McSleepy

McSleepy wrote: ↑

Thu Feb 27, 2025 6:25 pm

I believe you have your quotes cross-wired.

McSleepy

OK, I won't charge you for that one. But in the future, cash in advance, no returns, no refunds.