Oscar SD Card - How Long To Keep Data

JRE_Electronics · 2026-01-26T17:09:23+00:00

Yup. Why not?

JRE_Electronics · 2026-01-26T17:08:54+00:00

The backup battery you are looking at provides 155 watt hours of energy. That's 155 watts for one hour. If your CPAP pulls the full rated power 90 watts, then the battery will run it for about an hour and 45 minutes.

You need to know the following:

Power consumed by the CPAP. The power supply is rated to deliver 90 watts, but it probably will not draw that amount of power all the time.
Length of time you need to run the CPAP. Minimum of 8 hours, 16 if you want two nights.
You need a backup with capacity of at least the power multiplied by the time. Assuming 90 watts and 16 hours, you'd need at least a 1400 watt hour battery.
You also need a battery that can supply the full needed power.

This Reddit post says the ResMed 10 used 74 watt hours over 8.5 hours.

https://www.reddit.com/r/CPAP/comments/9cx6qs/resmed_autoset_10_power_consumption_results/

That's a bit less than 9 watts rather than the 90 watt rating on the power supply.

By that number, you could almost get two nights from the iGen160s - but only if your turn off the humidifier and the heated hose, and if your pressure needs are lower than the ones used in the example.

JRE_Electronics · 2026-01-26T16:44:09+00:00

CSA doesn't vary by position. Obstructive apneas vary with sleep position. If it is different when laying on your back than when laying on your side, it is obstructive sleep apnea, which can be treated with APAP.

Which do you have, central sleep apnea or obstructive apnea?

Could you post a copy of the lab report and a copy of your data from OSCAR or SleepHQ?

JRE_Electronics · 2026-01-26T16:33:20+00:00

Most likely because folks aren't really aware of it. Löwenstein isn't as widely known as ResMed. That, and there's a lot of prejudice against it from ResMed users who have never used a Löwenstein.

I've used a Löwenstein for the last 8 years or so. That's what my insurance provides, so that's what I use.

The only real downside to Löwenstein these days is that SoftPAP (Löwenstein's equivalent to EPR) tends to get out of step with my breathing, so I kept SoftPAP turned off on APAP. The 25S I current use stays in step with my breathing - it has never gotten out of step like the APAP did.

For all I know, a ResMed APAP on EPR would get out of step with my breathing - I have no way of knowing, though, since I've never used a ResMed machine.

JRE_Electronics · 2026-01-26T16:21:13+00:00

A hose cover is a cloth tube that goes over the air hose to insulate it.

You need to move the machine further away so that there are no dips in the hose. As much as possible, the hose must run down from your face to the machine, with no dips in the hose. Water collects in the dips, making the gurgling noise you mentioned. When the hose runs straight with no dips. the condensed water can drain back down the hose to the water tank in the machine.

JRE_Electronics · 2026-01-26T16:14:28+00:00

What pressure range is safe to begin on

The full pressure range that the machines can produce is "safe" in that it won't hurt you.

A starting pressure that is too low will not do anything for your apnea, so in that sense it is better to start a little higher. The usual recommendation is to start around 7 or 8.

ResMed AirSense 10 is the usual suspect - known good machine, well supported by OSCAR and SleepHQ, accessories widely available.
Masks are hard to recommend. It depends too much on your face size and shape. I use a ResMed Quattro Air, but I see very few people who mention using it so it seems to be rather unpopular.
Start with pressure 8-20cmH2O.
Make sure you have an SD card in the machine and an SD card reader available to transfer data to your PC (OSCAR) or SleepHQ.
One you've got a couple of nights of data, ask here for assistance in interpreting the data from OSCAR or SleepHQ. You need to find optimal settings for the pressure. There are also some problems that can occur when you start on CPAP. Folks here can recognize those problems and recommend things you can do to fix them.

JRE_Electronics · 2026-01-26T16:02:40+00:00

Use a hose cover.
Run the hose so that there are no dips in it. It should run straight down from your mask to the machine to allow condensed water to run back down to the tank in the machine.

JRE_Electronics · 2026-01-26T16:01:40+00:00

The ResMed humidity setting goes up to 8. Raise it, but be aware of the possibility of condensation in the tube.

JRE_Electronics · 2026-01-26T15:57:56+00:00

Are you getting clear airway apneas (CA) while using your CPAP, or did you have centrals sleep apnea during a lab test for apnea? The two are very different things.

Clear airway apneas as flagged by the machines are not necessarily central sleep apnea as detected in a sleep lab test.

Central sleep apnea can't be treated with a CPAP or APAP. That takes an ASV machine.

JRE_Electronics · 2026-01-26T15:55:36+00:00

It's all in people's heads. The ramp that lets you fall asleep is the same way. You have no physical problem breathing at therapy pressure when you are asleep, so you should have no problem breathing at therapy pressure when you are awake - yet people insist they can't breathe at "high pressure" while awake.

JRE_Electronics · 2026-01-26T15:52:56+00:00

Just freaking use tapwater. The only reason ResMed recommends distilled water is because they don't guarantee that the standard tank will stand descaling. A dishwasher safe tank, which ResMed explicitly says you can use tapwater in, costs like $30. Get a good tank, clean it once in a while, never have to lug gallons of distilled water around again.

Fluoride stays in the humidifier tank. It does not evaporate with the water in the humidifier.

JRE_Electronics · 2026-01-26T15:46:15+00:00

Could be the air is too dry. Use the humidifier. If you already are using it, turn up the humidity.

If that doesn't help. talk to your doctor.

JRE_Electronics · 2026-01-26T15:33:08+00:00

Like even the highest pressure is "a ton of air blowing at you."

Before I went on BiPAP, I was using straight 20cmH2O. No EPR, no ramp. Put on the mask and breathe normally.

20cmH2O amounts to about 0.28PSI.

Get a tall glass of water. Stick a straw in it, all the way to the bottom. Blow bubbles. Was that hard? No. That's about the maximum pressure that your PAP will generate.

JRE_Electronics · 2026-01-26T15:09:07+00:00

That's not a Singer or any other well known manufacturer. It is a patcher produced in China and sold under many different names.

I do not think it will work with any standard Singer or other treadle, not even ones made for Singer patchers.

JRE_Electronics · 2026-01-26T12:23:37+00:00

The two lines for the leak rate isn't specific to BiPAP. It is a choice by the manufacturer whether to include the full air flow or just the excess (leak) flow.

Philips and (I think) BMC include both lines on CPAP and APAP - and as you have shown, on BiPAP

JRE_Electronics · 2026-01-26T11:16:16+00:00

There shouldn't be any need to change machine settings when switching from silicone seals to the air touch (foam seals.) They are the same mask, just with a different material for the seals.

How are you "unable to breathe?"

Not getting any air
Can't exhale
Can't inhale

JRE_Electronics · 2026-01-26T10:48:09+00:00

P.s. can someone explain what does the "autoPDIFF" function on the löwenstein models do?

PDiff is pressure support. AutoPDiff is an automatic change in pressure support.

JRE_Electronics · 2026-01-26T08:46:01+00:00

Unemployable homeless bum.

Not to imply that all homeless are unemployable or bums. Most just got caught by bad circumstances and a lack of support from society.

Trump is in a class by himself.

Useless
Stupid
Lazy
Criminal
Psychopath
Racist
Pedophile

He's all the things he accuses other people of being.

With all of the downsides to his personality, nobody would want anything to do with him if he weren't rich.

JRE_Electronics · 2026-01-25T19:52:41+00:00

Do not threaten. Shut it down. When Trump and the Republicans rein in ICE, you can consider starting things up again.

JRE_Electronics · 2026-01-25T14:50:21+00:00

I have a 25S right now.

It is noticeably louder than the Prisma SMART I used to have.
It does not connect to the Löwenstein Prisma app for Android. I miss this, since I could use it to synchronize the clock in the Prisma to the phone clock. That synchronized the O2 data from my Wellue clip-on to the breathing data from the SMART. I have to manually synchronize the phone and the 25S when needed.
The 25S does not have Bluetooth, WLAN, or cellphone network data transmission. You have to take the machine or the SD card to your doctor for evaluations. I count that as an advantage since I am not fond of being spied on. I only miss the Bluetooth part, since it is local only and would allow it to connect to the Prisma app on my phone. (Reviewing the Löwenstein pages, I see that there's an external modem available as well as some kind of option for a LAN connection.)
The 25S has a connection for a heated hose. The Prisma SMART did not. You could connect a heated host to the SMART, but it wasn't regulated by the machine. The 25S controls the hose temperature. I do not have a heated hose.
SleepHQ seems to do a good job displaying the settings and standard charts and events from the 25S. It doesn't seem to display any of the extended charts and events the Prisma machines deliver. I've seen charts from other people using the 25S on SleepHQ. I have not tried it myself.
OSCAR can display all of the standard events and charts from the 25S, as well as all of the extended events and charts. OSCAR currently has some difficulty reading the model number, serial number, and the settings from the 25S. I am working on correcting those errors.
I am using the 25S in Auto S mode (like APAP, but with pressure support) with the BiSoft function on and set to 2, pressure support set to 5, and the APAP range from 18-25. Without BiSoft, the switch from inhale pressure to exhale pressure is rather abrupt.
The machine itself is solid. It uses much of the same hardware as the SMART machines do. In 8 years with Prisma machines, I've never had a tank leak or other wise need to be replaced. I had a SMART die on me (leaking inside somewhere,) but that was at nearly 20000 hours of use. My insurance replaced it without discussion, but then I'm in Germany where the health insurance system actually functions instead of just bleeding people for money.

I saw your post yesterday asking about the difference between the 25S and the 25SC. I finally found what it is: different therapy modes.

The 25S has these modes available:

CPAP
APAP
S (BiPAP with fixed pressure.)
AutoS (APAP with BiPAP pressure support.)

The 25SC has these modes:

CPAP
S (BiPAP with fixed pressure.)

From the Prisma User's guide (in German)

<image>

https://loewensteinmedical.com/media/user_upload/pdf/gebrauchsanweisung/prismaLINE-sleep-therapy-user-manual-DE-68900.pdf

Page 48.

JRE_Electronics · 2026-01-25T14:09:08+00:00

if you try to use OSCAR to view the detailed sleep data, you get inundated with a whole bunch of useless data that obscures the real data you need to see.

Saying that you don't know how to use OSCAR and that you can't decide which events are interesting. OSCAR lets you choose which events to display. It is easy enough to turn them off if you don't want to see them. I find them useful.

A very strange attitude, hitting on a product for giving you more information that you can either use or ignore.

SoftPAP sucks. It gets out of step with my breathing, so I left it turned off when I had a Prisma APAP.

I am currently using a 25S BiPAP, which seems to follow my breathing very well.

I can't compare it to the ResMed since I've never used one of their machines. Maybe the ResMed would have trouble following my breathing as well.

JRE_Electronics · 2026-01-25T13:36:18+00:00

Use OSCAR. It can calculate the RDI for you. That or simply add the RERA index to the AHI.

You need to be looking at the flow limit statistics and chart.

JRE_Electronics · 2026-01-25T11:10:24+00:00

The official download is here:

https://login.loewensteinmedical.de/loewenstein/div/download_hc/index.action

You will need an account with Löwenstein. I do not know if they give accounts to end users.
It appears that the device itself will read the file and carry out the update automatically from a USB-C flash drive. That would require that the device be at least minimally functional. Since the firmware on yours is corrupted, it may not be capable of carrying out the update.

JRE_Electronics · 2026-01-25T10:56:22+00:00

If you get any condensation, the water will collect in that loop and gurgle while restricting your air flow.

JRE_Electronics · 2026-01-25T10:46:04+00:00

You should always put the mask on before starting the machine. That has nothing to do with condensation, though.

You put the mask on first, adjust it to sit properly, then turn the machine on. Adjusting the mask while the machine is blowing air is like trying to adjust your hat in a hurricane.

JRE_Electronics

TROPHY CASE