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Could it be so..........
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Ghost1958 Offline

Advisory Members

Posts: 981
Joined: Aug 2014

Machine: PRS1 Series Sixty Auto Aflex
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: PRS1 with Heated Hose
CPAP Pressure: 10.5 min 16 max
CPAP Software: SleepyHead EncoreBasic

Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

Sex: Male
Location: KY

Post: #11
RE: Could it be so..........
(11-29-2014 12:53 PM)PaytonA Wrote:  
(11-29-2014 01:06 AM)Ghost1958 Wrote:  If your showing a 0 leak with a PR machine something aint right. It would at least show the mask vent rate as leak.

If you look underneath the events breakdown on the left side of the detail tab, it says,"Time over leak redline". If one has had a good night it will be 0.000%. At least this is the way that it works for my Resmed machine.

Best Regards,


Yep itll say that with the PRS1 but it says minutes in large leak. Theres also a percentage of night spent in large leak.

But the PRS1 only looks at total leak ie mask vent + unintentional leak.

It will show in the events 0 time spent in large leak if the leak isnt larger than about 70 lpm.

But there will be a leak rate. Even with no unintentional leaks the PRS1 will count the mask vent as total leak. In other words unlike a Resmed it doesnt care if the leak is intentional or not just that the total combined leak doesnt go into large leak.

If the leak graph is showing no leak at all with a PRS1 something is screwy.

But like one said if its working and no large leak just go with it LOL.
11-29-2014 05:54 PM
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zonk Offline

Advisory Members

Posts: 7,946
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #12
RE: Could it be so..........
0% in large leak, does not tell us great deal other than the machine is coping and have no problem reporting events as it see them accurately. Unlike ResMed, Respironcis does not tell us what they consider as an acceptable leak number

Any leak large or small that keep one awake or causing too many sleep disturbances need to be sorted out Coffee
11-29-2014 06:23 PM
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