Anybody else noticed this on the modern machines?

[DoriC]

[ResmedUser]

I might look into that jaw procecure where they break and reset your jaw to fix your airway.

Mikey

Here is some financial help on that surgery. I will do the first half of the procedure for no charge.

Communicating threats over the Internet?

Mikey

[Hueffenhardt]

The F&P ICON Auto's pressure tolerances are a little tighter (http://www.fpicon.com/data2/F&P%20ICON% ... 6221_c.pdf), but not likely to your satisfaction:

At 11 cmH20, it has a tolerance of +/- 0.47, for a range of 10.53 to 11.47.

[drj130]

Lets just let this guy vent and not pay attention like he wants. He has issues that we can't help him with here.

ResmedUser, all of us have done our best to try and help you out the best we can. Take the information we've provided and put it to use any way you want. For me, I'm just going to ignore what ever else you may say because all you seem to want now is to cause problems.

Take care and I hope that things work out for you.

David

[ResmedUser]

The F&P ICON Auto's pressure tolerances are a little tighter (http://www.fpicon.com/data2/F&P%20ICON% ... 6221_c.pdf), but not likely to your satisfaction:

At 11 cmH20, it has a tolerance of +/- 0.47, for a range of 10.53 to 11.47.

Yes, that is still awful tolerance. Near an entire point. Guess I lucked up on my first machine and hit it dead on at 11.1 PSI. Felt great for 3.5 years. Get a couple "new and improved" Resmeds and feel like crap on all of them.

Any German made CPAP companies? I bet their machines would blow at what they are supposed to.

Mikey

[ResmedUser]

Lets just let this guy vent and not pay attention like he wants. He has issues that we can't help him with here.

ResmedUser, all of us have done our best to try and help you out the best we can. Take the information we've provided and put it to use any way you want. For me, I'm just going to ignore what ever else you may say because all you seem to want now is to cause problems.

Take care and I hope that things work out for you.

David

I am angry because these new Resmed APAPs are junk. And do not work like my old machine. Maybe some company will read this and put Resmed out of business.

Mikey

[ResmedUser]

You work for Resmed by any chance? You sell their gear? I cannot imagine anyone supporting Resmed with loose tolerances like they have unless their is some financial conflict of interest there.

Mikey

I do however, do my research before I buy anything. I read the user manual before I decided to buy the S9 AutoSet. I knew of its pressure tolerances and compared it with the F&P ICON Auto among others. I knew what I was getting before I bought it.

You have low standards for expensive equipment then. I expect to get what I paid for.

Mikey

[Slartybartfast]

Just list him in your user control panel under "friends and foes" as "foe" and move on. You won't see his posts any longer.

Life is too short to deal with people like that.

[Hueffenhardt]

You have low standards for expensive equipment then. I expect to get what I paid for.

Mikey

I got exactly what I paid for. I paid for a machine with the publshed pressure tolerances and I got a machine within the published pressure tolerances. Andin any case, I don't need the machine to put out an exact pressure. I titrate myself on the very machine I own, raising or lower the pressure to optimize my AHI numbers and the way I feel. Theoretically, I could dial in the best pressure little by little without ever knowing what pressure I am actually at.

You are upset because you did not bother to research what you were buying before you bought it.

By the way Devilbiss Intellipap DV54 Auto Adjust has the following tolerances: @ 6.5 cmH20 +/- 0.5 cmH2O and @ 13 cmH20 +/- 1.0 cmH20

[Slinky]

Check the specs for ANY of the CPAP machines you think might be better than the Resmeds. You are going to find close to the same pressure tolerances. As a matter of fact .... three years ago? An S8? Check the specs. 10 to 1 they are almost exactly the same as those for the S9s. And for the various Respironics, PR S1s, DeVilbiss', F&Ps, etc., etc.

Frankly, your posts are so full of frusration and anger it would be frightening to be anywhere near your locale with all that pent up volatility and hatefulness. Like a keg about to explode. Dangerous.

[Tip10]

Guess I lucked up on my first machine and hit it dead on at 11.1 PSI.
Mikey

I doubt that very seriously -- 1 PSI equates to 70.3 cmH2O.

So you are saying that you first CPAP therapy ran at 780+ cmH2O??

If that were the case I believe we all know what happened.....

[xenablue]

Guess I lucked up on my first machine and hit it dead on at 11.1 PSI.
Mikey

I doubt that very seriously -- 1 PSI equates to 70.3 cmH2O.

So you are saying that you first CPAP therapy ran at 780+ cmH2O??

If that were the case I believe we all know what happened.....

[DocWeezy]

And in any case, I don't need the machine to put out an exact pressure. I titrate myself on the very machine I own, raising or lower the pressure to optimize my AHI numbers and the way I feel. Theoretically, I could dial in the best pressure little by little without ever knowing what pressure I am actually at.

Amen, Hueffenhardt! I'm mystified why anyone needs an exact pressure when it is so easy to figure out what works best for you, particularly on an auto machine. Makes no sense to me why someone would suffer instead of just increasing or decreasing the pressures or range until their numbers were down again and it felt good. Who cares what the actual number is, as long as the therapy is working. As intelligent adults we have the ability to discern what works and have control over our therapy.

Weezy

[BlackSpinner]

Just check your data and adjust the pressure until it works right. Who care what the exact label of the pressure is?

[sydneybird]

I have a hard time believing that 0.1 cm H2O or even 0.5 has any meaningful clinical significance for the majority of people, but I do understand it is important for you. You have a Manometer, so why don't you be proactive in calibrating your machine yourself and check it every month or so? You are lucky that ResMed provides 0.1 increment adjustment. Respironics is 0.5.

I guest they could put in a much more expensive pressure gauge with dynamic feedback control, but that might be an undue expense for a non-issue. I would suspect that if they set the machine to be spot on at 10, it would be off at lower/higher pressures. Then there are mask differences, hose differences, humidifier versus no humidifier.

Your RX might be 11, but how do you know it is not just a WAG by the doctor? But again, I understand that for you, you have symptoms above and below 11 by 0.1 cm H2O (if I remember correctly) and I am glad that you know this and can set the machine accordingly. I have symptoms below 8 and above 11 so I have a generous level of tolerance of 3.0 cmH2O +/- 0.5. What I don't understand is if CPAP.com sent you a machine set at 11.2 and it put out 11, just like you asked for, what's the beef?

I'm looking at my manuals for my Respironics; +/- 0.5 below 10, and +/- 1.0 above 10. The machine can only be adjusted in 0.5 cm H2O increments. The instructions for verifying the pressure requires a manometer to have a +/-0.3 cm H2O accuracy. They also specify a whole list of verification requirements, a certain swivel connector, only the foam filter, a certain end cap, an O2 enrichment assembly, etc. By the time you put your plumbing on, even the amount of water in your tank, who knows what pressure you are at? All the tolerances and pressure drops start to add up. The humidifier can reduce the pressure by 0.3 at 60 LPM flow (60 LPM is about 4 cm H2O). A note in the manual says that pressure varies according to local altitude and barometric pressure. Respironics has an offset feature for their various masks to compensate for mask flow resistance. I wonder what the tolerance is for that? Oh, by the way, don't put too many curves in your hose which will change the pressure as well.

Does anyone have an RX that specifies a pressure to the first decimal place level of detail? I doubt that as well.

After all that has been posted, it appears that the ResMed machine is the best one for you because of the 0.1 cm H2O setting ability and thus it is far from being crap, or at least the least crappy of the bunch. (Why is it that when I see CPAP I always think "CRAP"?)

Disclaimer: I do not work for a CPAP manufacture but I am an engineer with a fluid dynamics background.