pressure loss of machine?

sleepio · Post by **sleepio** » Sat Jun 25, 2016 10:01 am

machine: Philips PRS1 60 series w/ unheated humidifier

Can there be a loss of pressure to my mask caused by leaks in the humidifier chamber? (or that seal which mates the chamber to the housing, or the elbow seal) Sometimes it feels like theres a drop in pressure and it's not where the mask meets my nostrils.

The rig has 5300+ therapy hrs, and the original humidifier tank.

Thanks

Pugsy · Post by **Pugsy** » Sat Jun 25, 2016 10:11 am

It wouldn't be impossible for the silicone gaskets inside the humidifier to become brittle or get crimped and thus allowing a leak inside the humidifier.
What does your leak data show? If it is happening it will show up as a significant leak on the software reports.
Those gaskets are relatively inexpensive to replace.

When are you thinking or sensing that the pressure has dropped? In the middle of the night, at the beginning of the night or at the end of the night.

sleepio · Post by **sleepio** » Sat Jun 25, 2016 11:47 am

Pugsy wrote:It wouldn't be impossible for the silicone gaskets inside the humidifier to become brittle or get crimped and thus allowing a leak inside the humidifier.
What does your leak data show? If it is happening it will show up as a significant leak on the software reports.
Those gaskets are relatively inexpensive to replace.

When are you thinking or sensing that the pressure has dropped? In the middle of the night, at the beginning of the night or at the end of the night.

Thanks for responding

I usually sense the pressure has dropped right before I tear off my mask. It seems like there's not enough pressure to help do anything of value. Today it was a bit after 10am. It's not always at the end of the sleep period, sometimes its just a few hours into the session.

palerider · Post by **palerider** » Sat Jun 25, 2016 12:33 pm

sleepio wrote:I usually sense the pressure has dropped right before I tear off my mask. It seems like there's not enough pressure to help do anything of value. Today it was a bit after 10am.

no, the machine isn't going to magically start 'losing pressure' due to something in the humidifier, after a few hours, and then magically get it back again.

and stop 'tearing off' your mask.

sleepio · Post by **sleepio** » Sat Jun 25, 2016 1:47 pm

palerider wrote:
sleepio wrote:I usually sense the pressure has dropped right before I tear off my mask. It seems like there's not enough pressure to help do anything of value. Today it was a bit after 10am.
no, the machine isn't going to magically start 'losing pressure' due to something in the humidifier, after a few hours, and then magically get it back again.

and stop 'tearing off' your mask.

Perhaps its a subjective feeling in my lungs which cannot be quantified by data obtained by the machine.

Wulfman... · Post by **Wulfman...** » Sat Jun 25, 2016 2:26 pm

sleepio wrote:
palerider wrote:
sleepio wrote:I usually sense the pressure has dropped right before I tear off my mask. It seems like there's not enough pressure to help do anything of value. Today it was a bit after 10am.
no, the machine isn't going to magically start 'losing pressure' due to something in the humidifier, after a few hours, and then magically get it back again.

and stop 'tearing off' your mask.
Perhaps its a subjective feeling in my lungs which cannot be quantified by data obtained by the machine.

No. The machine doesn't pump air into your lungs. It's supposed to keep your airway open so you can breathe normally.
Your "sensation" is probably due to the fact that as the night goes by, you're becoming more used to the air pressure and at some point it feels like it's much lower than it should be.
If you want to feel more pressure, increase your minimum pressure to equal your maximum pressure and see how that feels and how your reports look.

And, don't "tear off" your mask.

Den

.

Pugsy · Post by **Pugsy** » Sat Jun 25, 2016 2:44 pm

If it were those silicone gaskets in the humidifier the leak would be present all the time and it would be fairly substantial.
Most likely I think that the pressure is really unchanged from what you normally experience but for some reason you wake up and you don't feel like the air is moving as much or enough to be comfortable and then a bit of panic sets in and the mind makes things worse.

What feels like hurricane force winds when we first turn on the machine becomes nothing but a gentle breeze once the brain/body has gotten accustomed to the pressure.

Pugsy · Post by **Pugsy** » Sat Jun 25, 2016 2:50 pm

Are you still using the Mirage Swift nasal pillow mask?
I have never used that one but there's one other thought that I just had. Is it possible for the airflow in the nasal pillow to get in a "bind" where the air flow is seriously reduced which could be perceived as sort of suffocation feeling and then that suffocation feeling creates the panic feeling???

I mention this because I had a similar thing happen with my P10 nasal pillows when I was using the XSmall only my suffocation feeling was caused by the nasal pillow walls sort of collapsing on themselves and preventing air movement.. Easily remedied when I would just pull the nasal pillows away from my face briefly but an hour later it might happen again. So I ended up going up a size in the nasal pillow mask and it hasn't happened since then.

So maybe the next time it happens you could just pull the mask away briefly instead of getting in a panic and tearing it off...and see if that might be where the problem is. Maybe the nasal pillow wall is collapsing and if that seems to be the case then look at getting a new nasal pillow.

sleepio · Post by **sleepio** » Sat Jun 25, 2016 3:24 pm

I should clarify, I don't tear off the mask in a panic; it's more of a ticked off thing.

I have the largest size of pillow. If the air is getting in a bind, as you say, wouldn't that be reflected in the numbers somewhere?

Pugsy · Post by **Pugsy** » Sat Jun 25, 2016 3:33 pm

I don't know if something being in a bind would show up or not...when I was experiencing it with my nasal pillows nothing showed on out of the usual on my reports that I could spot.

Since you are already using the largest nasal pillow...maybe consider trying a new one if it has been a while since you replaced it.

palerider · Post by **palerider** » Sat Jun 25, 2016 3:50 pm

sleepio wrote:
palerider wrote:
sleepio wrote:I usually sense the pressure has dropped right before I tear off my mask. It seems like there's not enough pressure to help do anything of value. Today it was a bit after 10am.
no, the machine isn't going to magically start 'losing pressure' due to something in the humidifier, after a few hours, and then magically get it back again.

and stop 'tearing off' your mask.
Perhaps its a subjective feeling in my lungs which cannot be quantified by data obtained by the machine.

like most things you're exposed to, you become desensitized over time, the huge oppressive impossible pressure first experienced becomes "is this thing on" after a while, it's a common thread here.

and stop tearing off your mask, think good thoughts, not bad ones... it helps.

sleepio · Post by **sleepio** » Sat Jun 25, 2016 4:07 pm

Thanks very much for your help, folks. I shall try your suggestions and report back.

mike1953 · Post by **mike1953** » Sat Jun 25, 2016 4:50 pm

palerider wrote:
sleepio wrote:I usually sense the pressure has dropped right before I tear off my mask. It seems like there's not enough pressure to help do anything of value. Today it was a bit after 10am.
no, the machine isn't going to magically start 'losing pressure' due to something in the humidifier, after a few hours, and then magically get it back again.

and stop 'tearing off' your mask.

+++1000

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