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[CPAP] Optimal Pressure Settings - Range
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EasyBreather Offline

New Members

Posts: 3
Joined: Jul 2013

Machine: PR System One 60 series Auto
Mask Type: Nasal pillows
Mask Make & Model: Resmed Swift FX
Humidifier: none
CPAP Pressure: 4-20
CPAP Software: SleepyHead

Other Comments:

Sex: Male

Post: #1
Optimal Pressure Settings - Range
Newbie here. This is a great resource, thanks to all that contribute here.

I just got a PR System One Auto 60 Series. My CPAP prescription calls for a pressure of 9.5. The APAP prescription reads 4-20. My machine is set to 4-20 and I am using it in APAP mode.

Over the first 6 days of use my 95% pressure is between 10 and 11 according to Sleepyhead.

I dont fully understand why having a smaller range set is better. Can't I keep my machine at 4-20? Doesn't the APAP algorithm determine what pressure I need at all times? What are the advantages to having a smaller range?
07-09-2013 06:20 PM
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trish6hundred Offline

Advisory Members

Posts: 6,300
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: #2
RE: Optimal Pressure Settings - Range
Hi EasyBreather,
WELCOME! to the forum.!
Hang in there for answers to your question and best of luck to you with your CPAP therapy.

07-09-2013 06:28 PM
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RonWessels Offline

Preferred Members-2

Posts: 465
Joined: Jun 2013

Machine: REMstar Auto AFlex DS560TS
Mask Type: Nasal mask
Mask Make & Model: ComfortGel Blue
Humidifier: REMstar Heated Tube DS6T
CPAP Pressure: 11 - 20
CPAP Software: SleepyHead

Other Comments: CMS50F Pulse Oximeter

Sex: Male
Location: Ontario, Canada

Post: #3
RE: Optimal Pressure Settings - Range
You might want to have a look towards the end of this thread where this exact question is discussed.
(This post was last modified: 07-09-2013 06:48 PM by RonWessels.)
07-09-2013 06:46 PM
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zonk Offline

Advisory Members

Posts: 7,907
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: #4
RE: Optimal Pressure Settings - Range
The machine increase pressure in response to snore and flow limitation which are precursor to full blown apnea event, if minimum pressure is too low ... the pressure might not get high enough to deal with collapse airways and duration of apnea will be longer too also some apnea events can occur without any warning, they can slip through if pressure have to ramp up from low starting point.
If you find starting with lower pressure more comfortable ... Ramp pressure can be set to start at lower pressure.
In theory the maximum pressure is not that important but if one have problem with flow limitation, the machine keep increasing pressure until maximum reached or you wake up. Higher pressure can induce aerophagia and central apnea in some people
I don,t think its an exact science rather trying and see what works best for you ... common sense and compromise
07-10-2013 05:30 PM
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