ResMed ELITE S8 User manual

S8 Series II
S8 AutoSet™ II
S8 Elite™ II
POSITIVE AIRWAY PRESSURE DEVICES
User Guide
English • Français • Español • Português Rx Only

ResMed Ltd (Manufacturer) 1 Elizabeth Macarthur Drive Bella Vista NSW 2153 Australia
ResMed Corp (US Designated Agent) 14040 Danielson Street Poway CA 92064-6857 USA
ResMed (UK) Ltd (EU Authorized Representative) 96 Milton Park Abingdon Oxfordshire OX14 4RY UK
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Singapore, Spain, Sweden, Switzerland, UK, USA (see www.resmed.com for contact details).
Protected by patents: AU 691200, AU 697652, AU 709279, AU 724589, AU 730844, AU 736723, AU 750095, AU 750761, AU 764761, AU 779327, AU
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3778797, NZ 504595, US 5199424, US 5245995, US 5522382, US 5704345, US 6029665, US 6138675, US 6240921, US 6363933, US 6367474, US 6398739,
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7141021. Other patents pending.
Protected by design registrations: AU 302180, AU 302181, AU 302182, AU 302183, AU 302184, AU 302185, AU 302186, CN 200430121212.2, CN
200430121213.7, CN 200430121211.8, CN 200430121214.1, CN 200430121215.6, CN 200430121216.0, CN 200430121217.5, EP 269436, HK 0412901.9, JP
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S8, S8 AutoSet, S8 Elite and SmartStart are trademarks of ResMed Ltd and AutoSet and HumidAire are registered in U.S. Patent and Trademark Office.
©2008 ResMed Ltd. 338523/1 08 01

English
S8 Series II
S8 AutoSet™ II
S8 Elite™ II
POSITIVE AIRWAY PRESSURE DEVICES
User Guide
English Rx Only
©2008 ResMed Ltd. 338523-Eng/1 08 01

i
Contents
Indications for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
S8 AutoSet II 1
S8 Elite II 1
Contraindications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Adverse Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Parts of the S8 Series II system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Masks 2
Humidifiers 2
Setting up the S8 Series II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting the Device 3
Selecting the Mask Type 3
Using the Mask-fitting Feature 3
Starting Treatment 4
Stopping Treatment 5
Changing the Settings on your S8 II Device . . . . . . . . . . . . . . . . . 5
The Standard Menu 5
The Detailed Menu 7
Messages on the S8 Series II LCD . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Using the Data Card to Collect Data . . . . . . . . . . . . . . . . . . . . . . . . 9
Copy Data onto the Data Card 9
Cleaning and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Daily 10
Weekly 10
Monthly 11
Replacing the Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Technical Specifications 15
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

1Indications for Use
English
Indications for Use
S8 AutoSet II
The S8 AutoSet II self-adjusting sleep apnea system is indicated for the treatment of
obstructive sleep apnea (OSA) in adult patients. The S8 AutoSet II self-adjusting sleep
apnea system has two treatment modes: AutoSet and fixed-pressure CPAP.
The S8 AutoSet II system is intended for home and hospital use.
S8 Elite II
The S8 Elite II continuous positive airway pressure (CPAP) system is indicated for the
treatment of obstructive sleep apnea (OSA) in adult patients.
The S8 Elite II CPAP system is intended for home and hospital use.
Contraindications
Your S8 Series II is not a life-support device and may stop operating during power
failure or certain fault conditions. It should not be used by patients who are dependent
on continuous therapy.
Positive airway pressure therapy may be contraindicated in some patients with the
following pre-existing conditions:
•severe bullous lung disease
•pneumothorax
•pathologically low blood pressure
•dehydration
•cerebrospinal fluid leak, recent cranial surgery, or trauma.
Adverse Effects
Patients should report unusual chest pain, severe headache, or increased
breathlessness to their prescribing physician. An acute upper respiratory tract infection
may require temporary discontinuation of treatment.
The following side effects may arise during the course of therapy with the CPAP device:
•drying of the nose, mouth, or throat
•nosebleed
•bloating
•ear or sinus discomfort
•eye irritation
•skin rashes.
Parts of the S8 Series II system
Your S8 Series II device comprises:
•S8 Series II device
•Power cord
•Carry bag
•2 m air tubing.

2
Accessories available:
•Integrated humidifier
•Front cap
•3 m air tubing
•DC-12 converter
•ResMed Tubing Wrap.
Masks
A list of masks (and their settings) compatible with these devices can be found on
www.resmed.com, on the Products page under Service and Support.
Humidifiers
A list of humidifiers compatible with ResMed devices can be found on
www.resmed.com, on the Products page under Service and Support.
Setting up the S8 Series II
!
WARNING
•Make sure the power cord and plug are in good condition and the
equipment is not damaged.
•Only ResMed air tubing should be used with the device. A different type of
air tubing may alter the pressure you actually receive and reduce the
effectiveness of your treatment.
•Blocking the hose and/or air inlet of the device while in operation could lead
to overheating of the device.
!
CAUTION
•Be careful to place the device where it cannot be bumped, and where no one
will trip over the power cord.
•If you put the device on the floor, make sure the area is free from dust and
clear of bedding, clothes or other objects that could block the air inlet.
•Make sure the area around the device is dry and clean.
Carry handle
Screen
Keypad
Air outlet DC
AC
Data Card
slot

3Setting up the S8 Series II
English
Connecting the Device
Selecting the Mask Type
To ensure your device functions as intended with your selected mask, you need to
select the mask type that you are using.
1With the RAMP or SETTLING screen displayed, press . (In CPAP mode, the
standby screen displays RAMP. In AutoSet mode (S8 AutoSet II only) the
standby screen displays SETTLING.)
2Press until MASK is displayed.
3Press to change the setting.
4Press or until you see the setting that you require.
5Press to apply.
Using the Mask-fitting Feature
You can use the S8 Series II mask-fitting feature to help you fit your mask properly. This
feature delivers air pressure for a three-minute period, prior to starting treatment,
during which you can check and adjust your mask fit to minimize leaks.
Note: Make sure that the mask setting on the MASK screen is the same as the mask you
are using.
1Fit your mask as described in the mask user instructions.
2With the RAMP or SETTLING screens displayed, hold down for at least
three seconds until air pressure delivery starts.
1
2
3
4
LCD and Keypad

4
Your device will ramp to the mask-fit pressure and will remain at this pressure
for three minutes.
The following displays on the LCD screen indicating that the mask-fitting feature
is operating, where: ***** is an excellent fit;****- is a very good fit; ***-- is a
good fit; while **---, *---- and ----- each require you to adjust your mask.
3Adjust your mask, mask cushion and headgear until you have a secure and
comfortable fit.
After three minutes, the pressure reverts to the set pressure and treatment will
begin. If you do not wish to wait three minutes, hold down for at least
three seconds to start treatment immediately.
If you press for less than three seconds, the unit will return to standby
mode (the RAMP or SETTLING screen).
Starting Treatment
1Make sure the power is on. The product name is displayed briefly on the screen,
then the standby screen displays RAMP (or SETTLING). Press or to
increase or decrease the ramping (or settling) period.
2Fit mask, lie down and arrange the air tubing so that it is free to move if you turn
in your sleep.
!
CAUTION
Do not leave long lengths of air tubing around the top of your bed. They could
twist around your head or neck while you are sleeping.
3To start treatment, press .
If your clinician has set up the device to start delivering therapy automatically
using SmartStart™, your device will start when you breathe into your mask.
4Fit your mask as described in the mask user instructions.
!
WARNING
A mask should not be used unless the S8 Series II device is powered and
operating properly.
When treatment begins, if ramp is set, the pressure increases from a low
pressure to the prescribed treatment pressure over the set period. Ramping is
designed to help you adjust to an increase in pressure gradually, and enhance
your comfort.
MASK FIT: *****
excelnt

5Changing the Settings on your S8 II Device
English
Stopping Treatment
To stop treatment at any time, remove your mask and press .
If your clinician has enabled SmartStart, simply remove your mask and treatment will
end.
Changing the Settings on your S8 II Device
You can change settings (such as Ramp Time, EPR Level) on the S8 II by using the
keypad and LCD. When the device is in standby mode you can display a series of
screens (a menu) on the LCD screen in order to view and change the settings for a
particular function.
The Standard Menu
Your clinician will have enabled the menu on your S8 Series II device. The picture
shows the standard menu in each mode.
Note: The AutoSet menu is available on the S8 AutoSet II only.
Toenter the standard menu from the standby (RAMP or SETTLING) screen, press
.
S8 CLASSICRAMP: 10min
menu
S8 CLASSIC
WELCOME
>>>>>>
S8 CLASSICSETTLING: 10min
menu
S8 CLASSIC
WELCOME
>>>>>>
EPR LEVEL: 1
change exit
CPAP AUTOSET
MASK: ULTRA
change exit
exit
SW: SX4800100
USED HRS: 08000
exit
USAGE: 1000/1068
exit
MASK: ULTRA
change exit
exit
SW: SX4800100
USED HRS: 08000
exit
USAGE: 1000/1068
exit
EPR LEVEL: 1
change exit
* Only displayed if access set by clinician.
**

6
You can use this menu to change the:
•Expiratory Pressure Relief (EPR) settings
Your clinician may have set up your device to deliver EPR. This can be used to help
ease any discomfort you may experience when breathing out during treatment.
There are four settings: OFF (no EPR); 1 (lowest EPR); 2; and 3 (highest EPR).
The EPR LEVEL screen only appears if your clinician has enabled access to the EPR
settings.
To change the EPR level, select . Press or until you see the
setting that you require.
•Mask type – see page 3.
You can also view the total number of hours of treatment (USED HRS); the number of
sessions that the S8 Series II device was used in a usage period (USAGE); and the
current software version (SW).

7Changing the Settings on your S8 II Device
English
The Detailed Menu
Your clinician may have enabled a detailed menu on your S8 Series II device. The
picture shows the detailed menu in each mode.
Note: The AutoSet menu is available on the S8 AutoSet II only.
Toenter the detailed menu from the standby (RAMP or SETTLING) screen, press .
The SETTINGS menu screen is displayed.
RAMP: 10min
menu
WELCOME
>>>>>>
SETTINGS
enter exit
SETTLING: 10min
menu
WELCOME
>>>>>>
EPR LEVEL: 1
change exit
MASK: ULTRA
change exit
TUBE LENGTH: 2m
change exit
HUMID: NONE
change exit
SMARTSTART: ON
change exit
LEAK ALERT: OFF
change exit
CPAP AUTOSET
MASK: ULTRA
change exit
TUBE LENGTH: 2m
change exit
HUMID: NONE
change exit
SMARTSTART: ON
change exit
LEAK ALERT: OFF
change exit
AUTOSETCPAP
USED HRS: 08000
exit
USAGE: 1000/1068
exit
RESULTS
enter exit
SERVICING
enter exit
OPTIONS
enter exit
LANG: ENGLISH
change exit
SN: 12345678912
exit
PCB: 123456789123
4567 exit
SW: SX4800100
exit
SMARTDATA
enter exit
SMARTDATA
enter exit
AUTO APPEAR: OFF
change cancel
EPR LEVEL: 1
change exit
**
* Only displayed if access set by clinician.
**
*

8
Settings Menu
Select on the Settings menu to access the options in this menu.
You can use the Settings menu to change the:
•Expiratory Pressure Relief (EPR) settings – see page 6.
•Mask type – see page 3.
•Tube length
Scroll to TUBE LENGTH and select .
Press or until you see the setting that you require.
•Front cap
You can set up your device to use the front cap accessory.
Scroll to HUMID and select .
Press or until you see the setting that you require.
•SmartStart settings
SmartStart enables your device to start automatically when you breathe into the
mask.
Scroll to SMARTSTART and select .
Press or to change the option to ON or OFF.
•Leak alert settings
Leak alert indicates when a high mask leak is present.
Scroll to LEAK ALERT and select .
Press or to change the option to ON or OFF.
Results Menu
Select on the Results menu to access the options in this menu.
You can use the Results menu to view the total number of hours of treatment (USED
HRS) and the number of sessions that the S8 AutoSet II was used in a usage period
(USAGE).
Note: Your clinician may have customized your device to display Smart Data. Contact
your clinician for further details about Smart Data.
Options Menu
Select on the Options menu to access the options in this menu.
You can use the Options menu to change the language setting. Scroll to LANG and
select . Press or until you see the setting that you require.
Servicing Menu
Select on the Servicing menu to access the options in this menu.
You can use the Servicing menu to view the device system information.

9Messages on the S8 Series II LCD
English
Messages on the S8 Series II LCD
Your clinician may have set your S8 Series II device to remind you about important
events, such as when to replace your mask, when to insert your Data Card (if your
device is Data Card enabled) and so on.
The reminder message is displayed on the LCD and is visible if the device is not
delivering therapy. The backlight on the LCD flashes when a message is displayed.
Your clinician can set any of the following reminders on your LCD:
Using the Data Card to Collect Data
If your clinician needs to review your treatment, they will ask you to use the Data Card
to copy data from your S8 Series II, and to return the card to them. The Data Card will
be provided in a protective folder.
Data that is copied to a Data Card is still stored and available on the S8 Series II device.
Copy Data onto the Data Card
1Switch on the S8 Series II and wait until you see the standby (Ramp) screen.
2Hold the Data Card with the arrow facing up and insert it into the Data Card slot
until it stops. Data copying starts automatically.
The “Card Inserted Please Wait” message is displayed on the S8 Series II LCD
while data is being copied. Copying takes approximately five seconds.
The “Copy Complete Remove Card” message is displayed on the LCD when
copying has finished.
Message Description Action
INSERT
CARD
May appear if your device is
Data Card enabled.
Insert your Data Card and follow any
instructions that your clinician has given you.
When you have done this, the message will
disappear from the LCD. Pressing (Ok)
will also remove the message.
REPLACE
MASK
May appear when your mask
is due for replacement.
Press (Ok) to remove the message
from your LCD, and replace your mask with a
new one.
CALL
PROVIDER
May appear as a reminder to
contact your clinician, eg, to
discuss how your therapy is
going.
Press (Ok) to remove the message
from your LCD, and contact your clinician.
REPLACE
FILTER
May appear as a reminder to
replace the air filter on your
device.
Press (Ok) to remove the message
from your LCD, and replace the air filter.
SERVICE
DUE
May appear as a reminder to
return your device for service.
Press (Ok) to remove the message
from your LCD, and contact your clinician.

10
3Remove the Data Card by gripping the end of the Data Card and pulling it out.
4Store the Data Card in its protective folder when not in use.
5Return the card in its protective folder to your clinician using a postal envelope.
Using the Data Card to Update Settings
If your clinician has provided a Data Card with new device settings:
1With the device in standby (Ramp) mode, insert the Data Card into the Data Card
slot. Updating will start automatically.
The “Card Inserted Please Wait” message is displayed on the LCD while
updating is in progress. Updating takes approximately five seconds.
The “Settings Success Remove Card” message is displayed on the LCD if the
settings were updated successfully.
Note: This message only appears once. If you re-insert the Data Card after you
have updated your settings, this message is not displayed.
2Remove the Data Card from the S8 Series II.
3Store the Data Card in its protective folder when not in use.
!
WARNING
If your clinician has told you to use this Data Card to update the settings on your
device and the “Settings Success” message does not appear, contact your
clinician immediately.
Cleaning and Maintenance
!
WARNING
Beware of electric shock. Do not immerse the device or power cord in water.
Always unplug the device before cleaning and make sure it is dry before
reconnecting.
!
CAUTION
•Do not hang the air tubing in direct sunlight as it may harden over time
and eventually crack.
•Do not use bleach, chlorine, alcohol, or aromatic-based solutions,
moisturizing or antibacterial soaps or scented oils to clean the air tubing or
the device. These solutions may cause hardening and reduce the life of the
product.
Daily
Disconnect the air tubing and hang it in a clean, dry place until next use.
Weekly
1Remove the air tubing and wash it in warm water using mild detergent.

11Replacing the Air Filter
English
2Rinse thoroughly, hang, and allow to dry.
3Before next use, reassemble the mask and headgear.
4Reconnect the air tubing.
Monthly
•Clean the exterior of the S8 Series II with a damp cloth and mild liquid soap.
•Check the air filter for holes and blockage by dirt. Replace it every six months, or
more often in a dusty environment.
Replacing the Air Filter
!
CAUTION
•Do not wash the air filter. The air filter is not washable or reusable.
•The air filter cover protects the device in the event of accidental liquid
spillage onto the device. Ensure the air filter and air filter cover are fitted at
all times.
1Remove the air filter cover at the back of the device.
2Remove and discard the old air filter.
3Insert a new filter with the blue tinted side facing out from the device.
4Replace the air filter cover.
Servicing
This product (S8 AutoSet II; S8 Elite II) should be inspected by an authorized ResMed
service centre five years from the date of manufacture. Prior to this, the device is
intended to provide safe and reliable operation provided that it is operated and
maintained in accordance with the instructions provided by ResMed. Applicable
ResMed warranty details are provided with the device at the time of original supply. Of
course, as with all electrical devices, if any irregularity becomes apparent, you should
exercise caution and have the device inspected by an authorized ResMed service
centre.
If you feel that your device is not performing properly, see “Troubleshooting” on
page 13.
Air filter cover

12
Frequently Asked Questions
How will it feel when I am breathing with the S8 Series II?
When you first use your S8 Series II, you may feel uncomfortable breathing against the
airflow. This is normal. You will continue to breathe normally while you sleep. The EPR
setting may also improve comfort. Take time to adjust to this new sensation.
What do I do when I want to get up in the night?
If you need to get up during the night, remove your mask and stop therapy. Always
remember to restart therapy and put your mask on when you return to bed.
What do I do if I feel air leaking out of the mask?
The S8 Series II delivers the most effective treatment when the mask is well fitted and
comfortable. Treatment can be affected by leaks, so it is important to eliminate any
leaks that may arise. For example, try repositioning the mask and adjusting the straps.
If you are using a nasal mask, try to keep your mouth closed during treatment. Air leaks
from your mouth can decrease the effectiveness of your treatment. If mouth leaks are
a problem, a full face mask or chin strap may help. Contact your clinician or equipment
supplier for further details.
If you are using a full face mask and you have problems trying to get a comfortable
mask fit, contact your clinician or equipment supplier. You may benefit from a different
size or style of mask.
Anything special I should do before putting the mask on?
Before wearing your mask, wash your face to remove excess facial oils. This will allow
a better fit and prolong the life of the mask cushion.
Do not use moisturizer when wearing a mask.
My mouth feels dry during treatment – what can I do?
You may experience dryness of the nose, mouth, and/or throat during the course of
treatment, especially during winter. In many cases, a humidifier may resolve this
discomfort. Contact your clinician for advice.
My nose is irritated during treatment – what can I do?
You may experience sneezing and/or a runny or blocked nose during the first few
weeks of treatment. In many cases, nasal irritation can be resolved with a humidifier.
Consult your clinician or equipment supplier for advice.
Can I travel with the S8 Series II?
Your S8 Series II has an internal power supply that enables it to operate in other
countries. It will operate on power supplies of 100–240V and 50/60Hz. No special
adjustment is necessary, but you will require an approved power cord for the region in
which you are using the device.
Your S8 Series II device automatically adjusts to changes in altitude up to 8500’
(2591 m).
Please consult the medical services department of your carrier if you intend to use your
S8 Series II on an aircraft. The S8 Series II complies with US FCC Part 15, Class B
requirements.
Note: Do not use your S8 Series II while the aircraft is taking off or landing.
Can I use my S8 Series II if mains (AC) power is not available?
A DC-12 converter is available to connect the S8 Series II to a 12V or 24V DC power
source. Contact your clinician for details.

13Troubleshooting
English
Troubleshooting
If there is a problem, try the following suggestions. If the problem cannot be solved,
contact your equipment supplier or ResMed. Do not attempt to open the device.
No display
Insufficient air delivered from S8 Series II device
Device does not start when you breathe into the mask although your clinician has
enabled SmartStart.
Problem/Possible Cause Solution
Power is not connected. Ensure the power cable is connected and the power
switch (if available) is on.
Ramp or settling time is in use. Wait for air pressure to build up or change ramp or
settling time.
Air filter is dirty. Replace air filter.
Air tubing is kinked or
punctured.
Straighten or replace tubing.
Air tubing not connected
properly.
Check air tubing.
Mask and headgear not
positioned correctly.
Adjust position of mask and headgear.
Cap(s) missing from access
port on mask.
Replace cap(s).
Pressure required for
treatment may have changed.
See your clinician to adjust the pressure.
Power cord not connected
properly.
Connect power cord firmly at both ends.
Power outlet may be faulty. Try another power outlet.
Leak Alert has been enabled
by your clinician; SmartStart
automatically disabled.
Contact your clinician.
Use of a ResMed Full Face
mask.
SmartStart does not work with a full-face mask as the
anti-asphyxia valve will not allow sufficiently high
pressure on exhalation.
Breath not deep enough to
trigger SmartStart.
Take a deep breath in and out through the mask.
Excessive leak. Adjust position of mask and headgear.
Replace caps if missing from ports on mask.
Air tubing may not be connected properly. Connect firmly
at both ends.
Air tubing may be kinked or punctured. Straighten or
replace.

14
Displays error message: SYSTEM ERRxxxx Call Service! or Exxxx (where
xxxx defines an error)
Displays error message: Check tube!! Key if done
The following message is displayed on the LCD after you try to update settings
or copy data to the Data Card: Card Error Remove Card
The following message is displayed on the LCD after you try to update settings
or copy data to the Data Card: Settings Error Remove Card
The following message is NOT displayed on the LCD after you try to update the
settings using the Data Card: Settings Success Remove Card
The following message is displayed on the LCD after you try to update settings
or copy data to the Data Card: Settings Invalid Remove Card
Problem/Possible Cause Solution
Component failure. Record error number and call service.
Air tubing is loose or blocked. Check that the air tubing is connected securely to your
mask and the air outlet to the front of the S8 Series II.
When you have checked the air tubing, press the Start/
Stop key to restart the device. If this does not clear the
message, disconnect the power cord and then
reconnect it to restart the device.
Data Card is not inserted
correctly.
Check that the patient is inserting the Data Card into the
Data Card module with the arrow facing up, while the S8
Escape II is switched on and not delivering therapy
(standby mode).
The Data Card is only partly
inserted.
Ensure that the Data Card is inserted into the Data Card
slot as far as it will go.
You may have removed the
Data Card before settings
were copied to the
S8 Escape II.
Reinsert the Data Card and wait for the Settings
Success Remove Card message to appear on the
LCD.
The card is not a ResScan Data
Card.
Only use a ResScan Data Card.
There is a data error on the
Data Card.
Contact your clinician immediately.
The settings were not
updated.
Contact your clinician immediately.
The identification details on
the Data Card do not match
the identification details on
your device.
Contact your clinician immediately.

15Troubleshooting
English
Technical Specifications
The manufacturer reserves the right to change these specifications without notice.
Symbols which appear on the device
Attention, consult accompanying documents; Drip proof; Type CF equipment;
Dangerous voltage; Class II equipment; Start/Stop.
Operating pressure range 4 to 20 cm H2O
Dimensions (H x W x D) 4.6" x 6.5" x 5.7" (112 mm x 164 mm x 145 mm)
Weight 3.1 lb (1.4 kg)
Operating Temperature +41°F to +95°F (+5°C to +36°C)
Power Supply • Input range for S8 Series II with HumidAire 3i: 100–240V, 50/60Hz;
110V, 400Hz; 2.5A <140VA (110W) (maximum power consumption).
Instantaneous peak power consumption <340VA.
• Refer to the DC-12 converter instructions for DC ratings. Only use
the ResMed DC-12 converter for DC input.
• Typical power consumption at 20 cm H2O is 39VA or 20.7W.
Operating Humidity 10%–95% non-condensing
Storage and Transport
Te m p e ra t u re -5°F to -140°F (-20°C to +60°C)
Storage and Transport
Humidity 10%–95% non-condensing
Operating Altitude Sea level to 8500’ (2591 m)
Electromagnetic
Compatibility Product complies with all applicable electromagnetic compatibility requirements (EMC) according to IEC60601-1-2, for residential,
commercial and light industry environments. The electromagnetic
compatibility tables for these ResMed devices can be found on
www.resmed.com, on the Products page under Service and
Support. Click on the PDF file for your device.
Air Filter Two-layered, powder-bonded, polyester non-woven fibre
Air Tubing Flexible plastic, 6’ 6" (2 m)
Air Outlet The 22 mm conical air outlet complies with EN 1281-1
IEC 60601-1 Classifications Class II (double insulation), Type CF
Supplemental Oxygen Recommended maximum supplemental oxygen flow: 4 L/min
Housing Construction Flame retardant engineering thermoplastic
Noise Level Radiated sound pressure is measured at <24±2 dBA at 10 cm H2O and
3’3.36” (1 m) according to ISO17510-1

16
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GENERAL WARNINGS AND CAUTIONS
A warning alerts you to possible injury.
•Read the entire guide before using the S8 Series II device.
•The advice in this guide should not supersede instructions given by the prescribing
physician.
•A patient should not connect a device to the data communication port unless
instructed to do so by their health care provider or physician. Only ResMed
products are designed to be connected to the data communication port.
Connecting other devices could result in injury, or damage to the S8 Series II
device.
•The S8 Series II device should be used with masks (and connectors)*
recommended by ResMed, or by a physician or respiratory therapist. A mask should
not be used unless the S8 Series II device is turned on and operating properly. The
vent hole or holes associated with the mask should never be blocked.
Explanation: The S8 Series II device is intended to be used with special masks (or
connectors)* which have vent holes to allow continuous flow of air out of the mask.
When the device is turned on and functioning properly, new air from the device
flushes the exhaled air out through the mask vent holes. However, when the device
is not operating, insufficient fresh air will be provided through the mask, and the
exhaled air may be rebreathed. Rebreathing of exhaled air for longer than several
minutes can, in some circumstances, lead to suffocation. This applies to most
models of CPAP devices.
•In the event of power failure or machine malfunction, remove the mask.
•The S8 Series II device can be set to deliver pressures up to 20 cm H2O. In the
unlikely event of certain fault conditions, pressures up to 30 cm H2O are possible.
•If oxygen is used with this device, the oxygen flow must be turned off when the
device is not operating. If oxygen has been left on, turn off the device, then wait
30 minutes before turning on the device.
Explanation: When the CPAP device is not in operation and the oxygen flow is left
on, oxygen delivered into the air delivery tubing may accumulate within the CPAP
machine enclosure and create a risk of fire. This applies to most types of CPAP
machines.
•Oxygen supports combustion. Oxygen should not be used while you are smoking
or in the presence of an open flame.
•Always ensure airflow is being generated by the device before the oxygen supply is
turned on.
•Always turn the oxygen supply off before stopping the airflow from the device
Note: At a fixed rate of supplemental oxygen flow, the inhaled oxygen concentration
varies, depending on where the oxygen is introduced, the pressure settings, patient
breathing pattern, mask selection and leak rate.
•Explosion hazard – do not use in the vicinity of flammable anesthetics.
•Do not open the S8 Series II case. There are no user serviceable parts inside.
Repairs and internal servicing should only be performed by an authorized service
agent.
* Ports may be incorporated into the mask or in connectors that are near the mask.