Auto on auto off feature

[Mouchet]

I am using Resmed airsense 10. I recently went back to using the auto on future although I’m still having the same problem .

Due to something ...my time is not recording correctly . although I only use it for about 6 or 7 hours it often only shows 4-5 hours.

Is Machine shutting off due to mast leaks and I’m not waking up ?

Is the machine broken?


What am I supposed to do I’m totally confused ?

[LSAT]

Turn it on/off manually...Personally I could never see the value in that feature. If leaks are affecting it...don't use it.

[Julie]

The machine's clock works from noon to noon, so look at it before noon for last night's results.

[JimW159]

Have you installed SleepyHead? Are you using it? If so, check your daily graphs to see if there are any gaps. What may occur is that the machine shuts off if a leak is interpreted as taking the mask off - following which, the leak is sealed and the machine senses the resumption of breathing and turns back on. In the details sidebar you should see a segmented graph of hours of use - it is possible the segments are not all bein counted or, as suggested by another, the clock kicks over at noon and the two segments don't get connected to complete the full session. Even if SH doesn't expose the problem's source, it, nevertheless, is a valuable tool in evaluating your sleep patterns.

This all is pure conjecture and may only be my fevered imagination - don't worry, it's not catching.

[palerider]

Turn it on/off manually...Personally I could never see the value in that feature. If leaks are affecting it...don't use it.

Not everybody has their machine in a place where it's quick and easy to reach the power button.

[SewTired]

What masks are you using? The Off feature doesn't appear to work with my Dreamwear mask, but works fine with the P10.

[Stom]

What masks are you using? The Off feature doesn't appear to work with my Dreamwear mask, but works fine with the P10.

In terms of turning on automatically, the dreamwear mask has squishy side of the face tubes, and might have a higher "intentional leak rate" (the vent holes) than the P10. Easier to detect an inhale with the low dead space and low intentional leak of a nasal pillow. I can get the auto start to work with my F20, but it takes a bigger inhale than with the nasal pillows.

Edit: as to turning off from large leaks, that I haven't tested.

[Pugsy]

What masks are you using? The Off feature doesn't appear to work with my Dreamwear mask, but works fine with the P10.

And it doesn't work with my P10...at least the auto off part. Auto on works great.
This is a known issue with some of the masks and it used to be just the nasal pillows but now I think maybe some of the others.

It has to do with lower pressures and the resistance that the mask has. Sometimes with the combination of a lower pressure and the amount of resistance from the mask the machine doesn't know that the human is no longer attached.
It can be fixed by using more pressure but who wants to do that unless they just have to.

There are some options...simply reach over and manually push the off button is one but if that's not an easy reach for someone for some reason we can just unhooked the mask at the short hose to long hose connection or pull the pillow/cushion off.

[palerider]

In terms of turning on automatically, the dreamwear mask has squishy side of the face tubes, and might have a higher "intentional leak rate" (the vent holes) than the P10.

Why guess, go look it up in the manuals.

[Stom]

Why guess, go look it up in the manuals.

I'm guessing because the intentional leak rate will be listed, but the elasticity of the dreamwear silicone supply tubes will not be and that could factor into the equation. Either way, experimental evidence will be simpler and more dispositive. But I'm not going to go there because I found Auto to be really annoying both in terms of premature starts and premature stops, and for me the best cure for it was turning the feature off.

[palerider]

Why guess, go look it up in the manuals.

I'm guessing because the intentional leak rate will be listed, but the elasticity of the dreamwear silicone supply tubes will not be and that could factor into the equation. Either way, experimental evidence will be simpler and more dispositive. But I'm not going to go there because I found Auto to be really annoying both in terms of premature starts and premature stops, and for me the best cure for it was turning the feature off.

I'd be willing to bet you a fair amount that "the elasticity of the dreamwear silicone supply tubes" WILL have been factored into the equation. (medical equipment certification and all that).

[Stom]

I'd be willing to bet you a fair amount that "the elasticity of the dreamwear silicone supply tubes" WILL have been factored into the equation. (medical equipment certification and all that).

I'm sure you are correct about that when it comes to therapeutic pressure and the turbulent flow and leak rate that is used to calculate the auto off, but not necesarily when it comes auto start, since that is just a comfort feature at ambient pressure (I was talking about a tangent to the OP, turning the machine *on* by breathing in, as opposed to turning it off off based on leak rate). I think the squishy dreamwear tubing could affect how a partial vacuum initially affects the flow rate pass the intake flow sensor in a way that would not be reflected in intentional leak rate stats under pressure. Not a big deal, just a hypothesis.

[palerider]

I'd be willing to bet you a fair amount that "the elasticity of the dreamwear silicone supply tubes" WILL have been factored into the equation. (medical equipment certification and all that).

I'm sure you are correct about that when it comes to therapeutic pressure and the turbulent flow and leak rate that is used to calculate the auto off, but not necesarily when it comes auto start, since that is just a comfort feature at ambient pressure (I was talking about a tangent to the OP, turning the machine *on* by breathing in, as opposed to turning it off off based on leak rate). I think the squishy dreamwear tubing could affect how a partial vacuum initially affects the flow rate pass the intake flow sensor in a way that would not be reflected in intentional leak rate stats under pressure. Not a big deal, just a hypothesis.

, the dreamwear mask has squishy side of the face tubes, and might have a higher "intentional leak rate" (the vent holes) than the P10.

Dreamwear top, P10 bottom:


Interesting hypothesis, but not supported by actual data.

[palerider]

I am using Resmed airsense 10. I recently went back to using the auto on future although I’m still having the same problem .

Due to something ...my time is not recording correctly . although I only use it for about 6 or 7 hours it often only shows 4-5 hours.

Is Machine shutting off due to mast leaks and I’m not waking up ?

Is the machine broken?


What am I supposed to do I’m totally confused ?

Do what Jim said, install sleepyhead, read the data, find out what's going on.

Smartstart shouldn't have anything to do with the hours used.

[Stom]

Interesting hypothesis, but not supported by actual data.

Thanks for looking up the intentional leak rate charts . Again, I was positing about turning the unit on, which is something that happens at ambient pressure. Those leak rates are all at pressure above ambient pressure, and do not disprove my hypothesis that squishy silicone tubes on the dreamwear could affect the auto on feature. And, again, not a huge deal, just a hypothesis that I'm too lazy to try experimentally.

I'm all for data, but the data you provided don't actually rule out the entirety of my hypothesis. Not saying my idea is right, only that your data doesn't in any way refute it, regardless of me being wrong about the difference in intentional leak rate.