Post Reply 
First night on bipap
Author Message
PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #11
RE: First night on bipap
Yes, the 24L is the "acceptable" leak rate, as it the air coming out the exhaust port has to be accounted for. Anything over that says air is leaking elsewhere.

Full face masks are notorious for leaking. Try laying down during the day, mask and machine on, then moving around as you would assume you do at night. You can then figure out how to prevent it from happening at night.

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
11-09-2012 04:38 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
idahocouchpotato Offline

Members

Posts: 15
Joined: Nov 2012

Machine: S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro
Humidifier: H5i
CPAP Pressure: 20/16
CPAP Software: Not using software

Other Comments: I always wanted to be more like Darth Vader

Sex: Male
Location: Star, Idaho

Post: #12
RE: First night on bipap
I just used the mask fit function where it skips the ramp up and get right down to business. After I figured out that the dial on the mask simply adjusts the tilt to match the slant of my face I was able to get the headgear set so it's comfy at full pressure, and it was reading a leak value of 0 on the screen. I rolled from side to side and even onto my stomach somewhat and there were no leaks.

I'll go rehash the cushion. I handle it with powder free nitrile exam gloves to keep fingerprints off when putting the clip back into the cushion.

Paula, the 24L leak rate needs to be associated with a pressure differential to have meaning. My max pressure of 20 cmH2O will leak more air through the exhaust ports than someone else with the same machine and mask but with a lower pressure. Also at a higher altitude a mask will leak more air than at sea level. If the machine just kicks in and calls anything over 24L/min a leak, I have no way of knowing if that number applies to my high pressure or was it set with a lower mask pressure as a standard.

That is why I wanted to know where the number comes from, whether stated in a manual or seen on a website so that I may tailor the info to my specific case.
11-09-2012 05:05 PM
Find all posts by this user Post Reply Quote this message in a reply
zonk Offline

Advisory Members

Posts: 7,908
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: #13
RE: First night on bipap
unlike other machines ... S9 calculate unintentional leak (mask plus mouth leak)
You have to set the mask type (default is nasal)
unintentional leak = total leak minus intentional leak (leak from exhaust ports to flush exhaled air)

when you get Mr green smiley face means the 70th percentile leak is less than 24 L/min which is Good
11-09-2012 05:08 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
idahocouchpotato Offline

Members

Posts: 15
Joined: Nov 2012

Machine: S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro
Humidifier: H5i
CPAP Pressure: 20/16
CPAP Software: Not using software

Other Comments: I always wanted to be more like Darth Vader

Sex: Male
Location: Star, Idaho

Post: #14
RE: First night on bipap
Thanks, Zonk! That is very good to know. I have made sure the machine is set to full face mode, and my face was green and smiley when I just did a proper fit. Not sure what changed from the DME to home, because there were no leaks in their office yesterday. Now I'm back to no leaks and will try again tonight.
11-09-2012 05:12 PM
Find all posts by this user Post Reply Quote this message in a reply
Sleepster Offline
Wiki Editor
Moderators

Posts: 4,989
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #15
RE: First night on bipap
(11-09-2012 04:17 PM)idahocouchpotato Wrote:  Out of curiosity, Zonk, where did you find the 24L/min figure? If there was no leak at all, is that how much air should pass through the exhaust ports on the mask?

No. The intentional leak is the amount that passes through the exhaust port. It depends on your mask type and your pressure setting, but it's automatically subtracted by your ResMed machine so you never have to worry about it. In fact, you couldn't even if you wanted to as ResMed machines don't give you access to that information.

The 24 L/min refers to the leak rate over and above the intentional leak rate. This is called the unintentional leak rate and keeping it under 24 L/min is what's recommended by ResMed.

I'm not sure where zonk got that figure, but I'm sure he will provide you with links to the sources.

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
(This post was last modified: 11-09-2012 05:34 PM by Sleepster.)
11-09-2012 05:32 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
archangle Offline
Wiki Editor
Advisory Members

Posts: 3,159
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed Swift FX
Humidifier: ResMed S9 H5i
CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments: Happy PAPper

Sex: Undisclosed
Location: USA

Post: #16
RE: First night on bipap
You need to watch your compliance hours. If your leaks are too high, it may not count the hours, and your insurance may refuse to pay for the machine. Learn how to read the "hours used" per night and days>4. You usually have to get something like 70% of the nights in 30 days to have more than 4 hours of "good" therapy or they'll take the machine back.

Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
11-09-2012 11:14 PM
Find all posts by this user Post Reply Quote this message in a reply
idahocouchpotato Offline

Members

Posts: 15
Joined: Nov 2012

Machine: S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro
Humidifier: H5i
CPAP Pressure: 20/16
CPAP Software: Not using software

Other Comments: I always wanted to be more like Darth Vader

Sex: Male
Location: Star, Idaho

Post: #17
RE: First night on bipap
Thanks for the info archangle. I know how to access the data from the machine thanks to this forum :grin:

I have private insurance so they don't check compliance data. Actually, after talking to them on the telephone I came to understand that because of a sizable deductible I will end up paying for most everything myself. Too-funny
11-09-2012 11:33 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
idahocouchpotato Offline

Members

Posts: 15
Joined: Nov 2012

Machine: S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro
Humidifier: H5i
CPAP Pressure: 20/16
CPAP Software: Not using software

Other Comments: I always wanted to be more like Darth Vader

Sex: Male
Location: Star, Idaho

Post: #18
RE: First night on bipap
I slept better and had a green smiley face for mask fit last night. I was really zonked out. :grin:
11-10-2012 02:47 PM
Find all posts by this user Post Reply Quote this message in a reply
trish6hundred Offline

Advisory Members

Posts: 6,430
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #19
RE: First night on bipap
Great, glad you had a good night last night and I hope thinks continue to go well for you.

trish6hundred
11-10-2012 02:52 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
vsheline Offline

Advisory Members

Posts: 1,907
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #20
RE: First night on bipap
(11-09-2012 04:17 PM)idahocouchpotato Wrote:  Out of curiosity, Zonk, where did you find the 24L/min figure? If there was no leak at all, is that how much air should pass through the exhaust ports on the mask? If so then the leak value would be a function of the mask pressure vs ambient pressure rather than a fixed value. I would like to research this further.

Welcome to the forum!

Keeping unintentional leak below 24L/min is a standard recommendation from ResMed.

If ResScan software reports the Leak is zero, this means the measured air flow into the hose is not larger than the amount the machine calculates is flowing through the mask vents.

The machine calculates airflow through the mask vents based on mask type and the pressure reaching the mask. So you have to tell the machine the mask type.

The machine calculates pressure reaching the mask (and you) as being the pressure at machine minus calculated pressure lost across the hose.

The machine calculates pressure lost across the hose as being the hose resistance times the airflow into the hose. So you have to tell the machine what type of hose is being used.

The resistance of the hose is an exponential function of the amount of air flowing through it. So the machine uses the amount of air flowing into the hose to calculate the resistance of the hose. Or, in other words, it calculates the pressure lost across the hose based on hose type and the amount of airflow into the hose.

Take care.
--- Vaughn

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
(This post was last modified: 11-10-2012 04:28 PM by vsheline.)
11-10-2012 03:33 PM
Find all posts by this user Post Reply Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  New User Problem with BiPAP AVAPS - Part 1 jmayer180 35 1,269 11-27-2016 09:50 AM
Last Post: jmayer180
  First time Bipap User, years of suffering SleepyMersim 18 628 11-16-2016 11:46 PM
Last Post: Galactus
Question BiPAP vs EPR/Flex etc? SleepyBee 7 262 11-13-2016 08:52 PM
Last Post: Galactus
  [Equipment] Annoying on/off beep on Respironics BIPAP S/T C series rcattell 8 338 11-06-2016 12:07 PM
Last Post: rcattell
  Blood sugar issues after treating apnea with BIPAP Gugliano 7 416 10-21-2016 01:59 PM
Last Post: southerndoc
  Can’t get to sleep with the BiPAP machine. StrugglinginOhio 26 1,519 10-20-2016 03:52 PM
Last Post: Sleeprider
  BiPAP ST Rx: Back up rate=0 jgoole 3 233 10-10-2016 11:35 AM
Last Post: Sleeprider

Forum Jump:

Who's Online (Complete List)