C-Aire FreeStyle Comfort User manual

FreeStyle®Comfort™

2 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
User Controls & System Status Indicators
ISO 7000; Graphical symbols for use on
equipment—Index and synopsis
Read user’s manual before operation. Reg.
# 1641
Operating temperature limitation of these
units is 41°F to 104°F (5°C to 40°C).
Storage temperature limitation range is
-13°F to +158°F (-25°C to +70°C).
Reg. # 0632
Humidity range is 10 to 95%. Reg. # 2620
Atmospheric pressure limitation.
Reg. # 2621
Name and address of manufacturer.
Reg. # 3082
Date of manufacturer. Reg. # 2497
Catalog Number. Reg. # 2493
Serial Number. Reg. # 2498
This way up. Reg. # 0623
Fragile, handle with care. Reg. # 0621
Keep away from rain, keep dry. Reg. # 0626
Stacking limit by number. Reg. # 2403
ISO 7010: Graphical symbols—Safety colors and
safety signs—Registered safety signs
The instruction manual must be read.
Reg. # M002
Keep away from open ame, re, sparks.
Open ignition source and smoking
prohibited. Reg. # P003
Do not smoke near unit or while operating
unit. Reg. # P002
Type BF applied part (degree of protection
against electric shock). Reg. # 5333
Warning. Reg. # W001
Council Directive 93/42/EEC; concerning
medical devices
Authorized representative in the European
Community
This device complies with the requirements
of Directive 93/42/EEC concerning
medical devices. It bears the CE marking
as shown.
IEC 60417
Class II Equipment, Double Insulated
Reg. # 5172
Power switch. Reg. # 5009
ETL Certification
Safety agency for CAN/CSA C22.2
No. 601.1 M90 for medical electrical
equipment
Internal Symbols
Keep away from ammable materials, oil
and grease.
Do not disassemble.
Increase ow.
Decrease ow.
RTCA/DO-
160 Section
21
Category M
Compliant
RTCA DO160 Section 21 Category M
Compliant. FAA SFAR 106 requirement
Class II Equipment, Double Insulated
FAAApproved – POC
21 CFR 801.15: Code of Federal Regulations Title 21
Federal law restricts this device to sale by
or on the order of a physician.

PN MN232-C4 C | User Manual ENG - 3
FreeStyle Comfort
What is the Oxygen
Concentrator
The air we breathe contains approximately 21% oxygen,
78% nitrogen, and 1% other gasses. In the FreeStyle®
Comfort, room air is drawn into the machine through the
air intakes. It then passes through an adsorbent material
called molecular sieve. This material separates the oxygen
from the nitrogen and allows only the oxygen to pass
through. The result is a ow of high-concentration oxygen
delivered to the user.
The FreeStyle Comfort combines advanced oxygen
concentrator and oxygen conserving technologies to create
a portable device that allows for maximum portability and
ambulation. The advanced pulse ow delivery quickly
senses when the user breathes in and delivers a pulse
of oxygen at the beginning of each inhalation. Pulse
ow delivery is ideal for activities and time away from
home. It conserves oxygen and extends battery life as
opposed to continuous ow. The FreeStyle Comfort is
lightweight enough to be carried via handle, shoulder strap,
or backpack. It can be operated on AC, DC (vehicle) or
battery power.
Why Your Physician
Prescribed Oxygen
Many people suffer from a variety of heart, lung, and other
respiratory diseases. A signicant number of these people
can benet from supplemental oxygen therapy at home,
when traveling, or while participating in daily activities
away from home.
Oxygen is a gas that makes up 21% of the ambient air
we breathe, and our bodies depend on a steady supply to
function properly. Your physician prescribed a ow or
setting to address your particular respiratory condition.
Although oxygen is a non-addictive drug, unauthorized
oxygen therapy can be dangerous. You must seek medical
advice before you use this oxygen concentrator. The
Equipment Provider who supplies your oxygen equipment
will demonstrate how to set the prescribed ow rate.
Operator Profile
Concentrators are intended to supply supplemental oxygen
to users suffering from discomfort due to ailments which
effect the efciency of one’s lungs to transfer oxygen in
the air to their bloodstream. Portable oxygen concentrators
(POCs) do not store or contain oxygen. They do not
need to be relled, and can recharge anywhere AC or DC
power is available (except on an airplane). This makes
the user relatively self-sufcient in terms of in-home
use, ambulation (both within and outside of the home),
mobility, and overall lifestyle. Oxygen concentrator use
requires a physician’s prescription and is not intended for
life support use.
Although oxygen therapy can be prescribed for users of all
ages, the typical oxygen therapy user is older than 65 years
of age and suffers from a variety of respiratory diseases,
including Chronic Obstructive Pulmonary Disorder
(COPD). Users typically have good cognitive abilities and
must be able to communicate discomfort. If the user is
unable to communicate discomfort, or unable to read and
understand the concentrator labeling and instructions for
use, then use is recommended only under the supervision
of one who can. If any discomfort is felt while using the
concentrator, users are advised to contact their healthcare
provider. Users are also advised to have back-up oxygen
available (i.e. cylinder oxygen) in the event of a power
outage or concentrator failure. There are no other unique
skills or user abilities required for concentrator use.
Council Directive 2012/19/EU: waste electrical and
electronic equipment (WEEE)
WEEE
IEC 60601-1: Medical electrical equipment Part 1
General requirements for basic safety and essential
performance
Drip Proof
This product may be covered by one or more patents, US
and international. Please visit our website below for the
listing of applicable patents. Pat.: patents.gtls.io.

4 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
Getting to Know Your FreeStyle Comfort
Become familiar with the key features of the FreeStyle Comfort and its user interface.
Strap Attachment
Oxygen
Outlet
Air Outlet
Battery Pack
Air Intake/Filters
User Interface
Power Port
Receptacle Tab
Battery Pack
Release Button
Front View
Air Intake/Filters
Verify that all of the components
listed are included in the package. If
any items are missing, contact your
oxygen provider immediately.
Unpacking Your FreeStyle Comfort
Standard Accessories
• Portable Oxygen Concentrator
• Carrying Bag
• Shoulder Strap
• 8-Cell Battery Pack
• AC Power Supply
• AC Power Cord
• DC Power Supply
• User Manual
Optional Accessories
• Additional 8-Cell Battery Pack
• 16-Cell Battery Pack
• Desktop Charger
• Carry-all Accessory Bag

PN MN232-C4 C | User Manual ENG - 5
FreeStyle Comfort
Display Screen
Decrease Flow
Increase Flow
Power Button
Flow Setting
Alarm Display
Space
Battery Display
Battery
Percentage
Remaining
Display Screen On Battery
Flow Setting
Alarm Display
Space
Battery Display
Charge Indicator
Display Screen On AC/DC Power
Top View

6 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
Important!
Safety Instructions are defined as follows:
WARNING: IMPORTANT SAFETY INFORMA-
TION FOR HAZARDS THAT MIGHT CAUSE
SERIOUS INJURY.
CAUTION: Important information for pre-
venting damage to the FreeStyle Comfort.
Note: Information needing special attention.
Indications for Use
WARNING: IT IS VERY IMPORTANT TO
SELECT ONLY THE PRESCRIBED LEVEL OF
OXYGEN. DO NOT CHANGE THE FLOW SE-
LECTION UNLESS YOU HAVE BEEN DIRECT-
ED TO DO SO BY A LICENSED CLINICIAN.
WARNING: FEDERAL (USA) LAW RESTRICTS THIS DE-
VICE TO SALE OR RENTAL BY ORDER OF A PHYSICIAN
OR OTHER LICENSED HEALTH CARE PROVIDER.
WARNING:THIS UNIT IS NOT TO BE USED FOR LIFE SUP-
PORT. GERIATRIC, PEDIATRIC, OR ANY OTHER USER UN-
ABLE TO COMMUNICATE DISCOMFORT WHILE USING
THIS DEVICE MAY REQUIRE ADDITIONAL MONITORING.
USERS WITH HEARING AND/OR SIGHT IMPAIRMENT(S)
MAY NEED ASSISTANCE WITH MONITORING ALARMS.
WARNING: PULSE DOSE MODE SETTINGS MUST BE
DETERMINED FOR EACH USER INDIVIDUALLY FOR
THEIR NEEDS AT REST, DURING EXERCISE,AND WHEN
TRAVELING.
WARNING: SOME RESPIRATORY EFFORTS OF THE
PATIENT MIGHT NOT TRIGGER THE CONSERVING
FUNCTION.
WARNING:THE FREESTYLE COMFORT IS NOT INTEND-
ED FOR USE WITH A TRACHEOTOMISED PATIENT.
WARNING: PREGNANT OR NURSING WOMEN SHOULD
NOT USE ACCESSORIES RECOMMENDED IN THIS MAN-
UAL,THEY MAY CONTAIN PHTHALATES.
Contraindications for Use
WARNING: IN CERTAIN CIRCUMSTANCES,
THE USE OF NON-PRESCRIBED OXYGEN
CAN BE HAZARDOUS. THIS DEVICE SHOULD
ONLY BE USED WHEN PRESCRIBED BY A
PHYSICIAN.
WARNING: NOT FOR USE IN THE PRESENCE OF FLAM-
MABLE ANESTHETICS.
WARNING:AS WITH ANY ELECTRICALLY POWERED
DEVICE, THE USER MAY EXPERIENCE PERIODS OF
NON-OPERATION AS A RESULT OF ELECTRICAL
POWER INTERRUPTION, OR THE NEED TO HAVE THE
OXYGEN CONCENTRATOR SERVICED BY A QUALIFIED
TECHNICIAN.THE OXYGEN CONCENTRATOR IS NOT AP-
PROPRIATE FOR ANY USER WHO WOULD EXPERIENCE
ADVERSE HEALTH CONSEQUENCES AS THE RESULT OF
SUCH TEMPORARY INTERRUPTION.
Safety Guidelines
WARNING: NO MODIFICATION OF THIS
EQUIPMENT IS PERMITTED
WARNING:THIS DEVICE SUPPLIES HIGH-CONCENTRA-
TION OXYGEN THAT PROMOTES RAPID BURNING. DO
NOT ALLOW SMOKING OR OPEN FLAMES WITHIN THE
SAME ROOM OF (1) THIS DEVICE, OR (2) ANY OXY-
GEN-CARRYING ACCESSORY. FAILURE TO OBSERVE THIS
WARNING CAN RESULT IN SEVERE FIRE, PROPERTY
DAMAGE, AND/OR CAUSE PHYSICAL INJURY OR DEATH.
WARNING: DO NOT OPERATE UNIT IN A RESTRICTED
OR CONFINED SPACE (I.E., A SMALL CASE OR HAND-
BAG) WHERE VENTILATION CAN BE LIMITED. THIS CAN
CAUSE THE OXYGEN CONCENTRATOR TO OVERHEAT
AND IMPAIR PERFORMANCE.
WARNING:THE CONCENTRATOR SHOULD BE LOCATED
AS TO AVOID SMOKE, POLLUTANTS OR FUMES.

PN MN232-C4 C | User Manual ENG - 7
FreeStyle Comfort
WARNING:THE USE OF SOME OXYGEN
ADMINISTRATING ACCESSORIES
NOT SPECIFIED FOR THIS OXYGEN
CONCENTRATOR MAY IMPAIR ITS
PERFORMANCE. RECOMMENDED
ACCESSORIES ARE REFERENCED WITHIN
THIS MANUAL.
WARNING: IF THE OXYGEN CONCENTRATOR HAS
BEEN DROPPED, DAMAGED OR EXPOSED TO WATER,
PLEASE CONTACT YOUR HOME CARE PROVIDER FOR
INSPECTION OR POSSIBLE REPAIR OF THE DEVICE. DO
NOT USE THE OXYGEN CONCENTRATOR IF IT HAS A
DAMAGED POWER CORD OR PLUG.
WARNING: PROPERLY SECURE, BELT OR OTHERWISE
RESTRAIN THE OXYGEN CONCENTRATOR WHEN IN A
VEHICLE DURING TRANSPORT TO PREVENT DAMAGE
OR INJURY.
WARNING:THE US DEPARTMENT OF TRANSPORTATION
(DOT) AND UNITED NATIONS (UN) REGULATIONS
REQUIRE THE REMOVAL OF THE BATTERY FROM
THE DEVICE FOR ALL INTERNATIONAL AIRLINE
TRAVEL WHEN THE OXYGEN CONCENTRATOR IS
CHECKED AS LUGGAGE. WHEN SHIPPING THE
OXYGEN CONCENTRATOR, THE BATTERY MUST ALSO
BE REMOVED FROM THE DEVICE AND PACKAGED
PROPERLY.
WARNING: DO NOT OPERATE THIS EQUIPMENT
WITHOUT FIRST READING AND UNDERSTANDING
THIS MANUAL. IF YOU ARE UNABLE TO UNDERSTAND
THE WARNINGS AND INSTRUCTIONS, CONTACT YOUR
EQUIPMENT PROVIDER BEFORE ATTEMPTING TO USE
THIS EQUIPMENT; OTHERWISE, INJURY OR DAMAGE
MAY RESULT.
WARNING: IF YOU FEEL DISCOMFORT OR ARE
EXPERIENCING A MEDICAL EMERGENCY, SEEK
MEDICAL ASSISTANCE IMMEDIATELY.
WARNING: OPERATING THE OXYGEN CONCENTRATOR
OUTSIDE OF THE OPERATIONAL TEMPERATURE
SPECIFICATIONS CAN LIMIT THE CONCENTRATOR’S
ABILITY TO MEET OXYGEN CONCENTRATION
SPECIFICATION. REFER TO THE SPECIFICATION SECTION
OF THIS MANUAL FOR TEMPERATURE LIMITS.
WARNING: USE NO OIL, GREASE, OR PETROLEUM-
BASED OR OTHER FLAMMABLE PRODUCTS WITH THE
OXYGEN-CARRYING ACCESSORIES OR THE OXYGEN
CONCENTRATOR. ONLY WATER BASED, OXYGEN
COMPATIBLE LOTIONS OR SALVES SHOULD BE
USED. OXYGEN ACCELERATES THE COMBUSTION OF
FLAMMABLE SUBSTANCES.
WARNING: DO NOT ALLOW EITHER THE AIR INTAKE
OR THE AIR OUTLET EXHAUST TO BECOME BLOCKED.
DO NOT DROP OR INSERT ANY OBJECTS INTO ANY
OPENINGS ON THE DEVICE. THIS CAN CAUSE THE
OXYGEN CONCENTRATOR TO OVERHEAT AND IMPAIR
PERFORMANCE.
WARNING:THE INCORRECT USE OF THE BATTERY CAN
CAUSE THE BATTERY TO GET HOT, IGNITE,AND MAY
CAUSE SERIOUS INJURY. BE SURE NOT TO PIERCE,
STRIKE, STEP ON, DROP THE BATTERY, OR OTHERWISE
SUBJECT THE BATTERY TO STRONG IMPACTS OR
SHOCKS. THE USE OF A DAMAGED BATTERY MAY
CAUSE PERSONAL INJURY.
WARNING: DO NOT SHORT-CIRCUIT THE BATTERY’S
METAL CONTACTS WITH METALLIC OBJECTS, SUCH
AS KEYS OR COINS.THIS MAY CAUSE SPARKS OR
EXCESSIVE HEAT TO BE GENERATED.
WARNING:WHILE USING THE PORTABLE OXYGEN
CONCENTRATOR OUTDOORS WITH THE AC POWER
SUPPLY, CONNECT THE POWER SUPPLY INTO A GROUND
FAULT INTERRUPTED (GFI) OUTLET ONLY.
WARNING:THE OXYGEN CONCENTRATOR SHOULD
NOT BE USED ADJACENT TO OR STACKED WITH
OTHER EQUIPMENT. IF ADJACENT OR STACKED USE IS
UNAVOIDABLE, THE DEVICE SHOULD BE OBSERVED TO
VERIFY NORMAL OPERATION.
WARNING: USE OF CABLES AND ADAPTERS OTHER
THAN THOSE SPECIFIED, WITH THE EXCEPTION OF
CABLES AND ADAPTERS SOLD BY THE MANUFACTURER
OF THE MEDICAL ELECTRICAL EQUIPMENT AS
REPLACEMENT PARTS FOR INTERNAL COMPONENTS,
MAY RESULT IN INCREASED EMISSIONS OF DECREASED
IMMUNITY OF THE OXYGEN CONCENTRATOR.
WARNING: USE ONLY ELECTRICAL VOLTAGE SPECIFIED
ON THE SPECIFICATION LABEL AFFIXED TO THE DEVICE.
WARNING: DO NOT USE EXTENSION CORDS WITH THIS
UNIT OR CONNECT TOO MANY PLUGS INTO THE SAME
ELECTRICAL OUTLET. THE USE OF EXTENSION CORDS
COULD ADVERSELY AFFECT THE PERFORMANCE OF
THE DEVICE. TOO MANY PLUGS INTO ONE OUTLET CAN
RESULT IN AN OVERLOAD TO THE ELECTRICAL PANEL
CAUSING THE BREAKER/FUSE TO ACTIVATE OR FIRE IF
THE BREAKER OR FUSE FAILS TO OPERATE.

8 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
CAUTION: In the event of an alarm or you
observe the Oxygen Concentrator is not
working properly; consult the Trouble-
shooting section in this manual. If you
cannot resolve the problem, consult your
Equipment Provider.
CAUTION:To prevent a void warranty, follow all manu-
facturers’ instructions.
WARNING: DO NOT ATTEMPT ANY MAIN-
TENANCE OTHER THAN THE POSSIBLE
SOLUTIONS LISTED WITHIN THIS MANUAL.
DO NOT REMOVE COVERS, ONLY YOUR
EQUIPMENT PROVIDER OR A QUALIFIED
SERVICE TECHNICIAN SHOULD REMOVE THE
COVERS OR SERVICE THIS DEVICE.
WARNING: ONLY ACCESSORIES RECOMMENDED BY
THE MANUFACTURER. USE OF ANY OTHER MAY BE
HAZARDOUS, CAUSE SERIOUS DAMAGE TO YOUR OXY-
GEN CONCENTRATOR AND WILL VOID THE WARRANTY .
WARNING:THE MANUFACTURER RECOMMENDS AN
ALTERNATE SOURCE OF SUPPLEMENTAL OXYGEN IN
THE EVENT OF A POWER OUTAGE, ALARM CONDITION,
OR MECHANICAL FAILURE. CONSULT YOUR PHYSICIAN
OR EQUIPMENT PROVIDER FOR THE TYPE OF RESERVE
SYSTEM REQUIRED.
WARNING: DO NOT ALLOW EITHER THE AIR INTAKE
OR THE AIR OUTLET VENTS TO BECOME BLOCKED.
DO NOT DROP OR INSERT ANY OBJECTS INTO ANY
OPENINGS ON THE DEVICE. THIS CAN CAUSE THE
OXYGEN CONCENTRATOR TO OVERHEAT AND IMPAIR
PERFORMANCE.
WARNING: SMOKING WHILE USING OXYGEN IS THE
NUMBER ONE CAUSE OF FIRE INJURIES AND RELATED
DEATHS. YOU MUST FOLLOW THESE SAFETY WARN-
INGS:
WARNING: DO NOT ALLOW SMOKING, CANDLES, OR
OPEN FLAMES IN THE SAME ROOM WITH THE DEVICE
OR THE OXYGEN-CARRYING ACCESSORIES.
WARNING: SMOKING WHILE WEARING AN OXYGEN
CANNULA MAY CAUSE FACIAL BURNS AND POSSIBLY
DEATH.
WARNING: IF YOU SMOKE,THESE 3 STEPS MAY SAVE
YOUR LIFE: TURN OFF THE OXYGEN CONCENTRATOR,
TAKE OFF THE CANNULA,AND LEAVE THE ROOM
WHERE THIS DEVICE IS LOCATED.
WARNING: “NO SMOKING – OXYGEN IN USE” SIGNS
MUST BE PROMINENTLY DISPLAYED IN THE HOME,
OR WHERE OXYGEN IS IN USE. USERS AND THEIR CARE-
GIVERS MUST BE INFORMED ABOUT THE DANGERS
OF SMOKING IN THE PRESENCE OF, OR WHILE USING,
MEDICAL OXYGEN.
WARNING: DO NOT USE YOUR OXYGEN CONCENTRA-
TOR IN THE PRESENCE OF FLAMMABLE GASES.THIS
CAN RESULT IN RAPID BURNING CAUSING PROPERTY
DAMAGE, BODILY INJURIES OR DEATH.
WARNING: REMOVING THE CANNULA AND PUTTING IT
ON CLOTHING, BEDDING, SOFAS, OR OTHER CUSHION
MATERIAL WILL CAUSE A FLASH FIRE WHEN EXPOSED
TO A CIGARETTE, HEAT SOURCE, OR FLAME.
WARNING: DO NOT LEAVE A NASAL CANNULA ON
OR UNDER CLOTHING, BED COVERINGS OR CHAIR
CUSHIONS. IF THE UNIT IS TURNED ON BUT NOT IN USE,
THE OXYGEN WILL MAKE THE MATERIAL FLAMMABLE.
ENSURE THE POWER IS OFF WHEN THE OXYGEN CON-
CENTRATOR IS NOT IN USE.
WARNING:THE OXYGEN CONCENTRATOR MUST BE OFF
AND DISCONNECTED FROM EXTERNAL POWER BEFORE
REMOVING THE BATTERY PACK.
WARNING: SMALL PARTS MAY PRESENT A
POTENTIAL CHOKING HAZARD.
WARNING:AVOID CONTACT WITH EXHAUST AIR VENT
FOR LONGER THAN 10 SECONDS AS IT MAY BE WARM.
WARNING:WIND OR STRONG DRAUGHTS CAN
ADVERSELY AFFECT ACCURATE DELIVERY OF OXYGEN
THERAPY.”
CAUTION:Always disconnect AC power
supply from the wall before disconnecting
the AC power supply from the Oxygen
Concentrator.
CAUTION: Do not position the Oxygen Concentrator so
that it is difficult to access the power cord.
CAUTION:Always place oxygen supply tubing and
power cords in a manner that prevents trip hazard or
possible accidental strangulation.

PN MN232-C4 C | User Manual ENG - 9
FreeStyle Comfort
CAUTION:When using the Oxygen Concentrator in an
automobile, boat, or on other DC sources with the DC
power supply, make sure that the vehicle is started
and running before connecting the Oxygen Concen-
trator. Failure to follow these instructions can result in
the power supply not supplying power to the Oxygen
Concentrator.
CAUTION:When the automobile in which you are using
the Oxygen Concentrator unit is turned off, disconnect
and remove the device from the automobile. Do not
store the Oxygen Concentrator in a very hot or cold
automobile or in other similar, high- or low-tempera-
ture environments.
Note: Portable and mobile RF communications equipment
can effect medical electrical equipment.
CAUTION: DO NOT leave the Oxygen
Concentrator or the Power Supply plugged
into the vehicle if the ignition is in the OFF
position. Doing so may drain the vehicle’s
battery.
CAUTION: Operating or storing the Oxygen Concen-
trator outside of its normal operating temperature
range and ambient pressure range (altitude) can affect
performance and decrease battery run time and/or
increase battery charge time. Refer to the Specifica-
tions section in this manual for storage and operating
temperature limits.
CAUTION: For Oxygen Concentrators equipped with
batteries: Store in a cool and dry location to help
ensure the longevity of your battery. Storing your Oxy-
gen Concentrator for extended periods of time at high
temperatures or with a fully charged or completely
discharged battery can degrade its overall battery
life. Do not attempt to open the battery; there are no
serviceable parts inside the battery. Keep batteries
away from children.
CAUTION: ONLY USE the Manufacturer’s provided
batteries. For proper battery disposal, contact your
Equipment Provider or your local government agency
for disposal requirements.
Note: Ensure the cannula is fully inserted and secure.This
ensures that the Oxygen Concentrator can properly detect
inspiration for oxygen delivery. During inhalation, you
should hear or feel oxygen flow to the prongs of the nasal
cannula.
Note: Lithium batteries may permanently lose capacity
when exposed to extremely hot temperatures with the bat-
teries fully charged or completely depleted. For extended
storage, it is recommended that batteries be charged 25
to 50% and remain within a temperature range of -4°F –
68°F (-20°C – 20°C).
Note: The use of some oxygen administration accessories
not specified for use with this oxygen concentrator may
impair its performance. Recommended accessories are
referenced within this manual.
Note: Do not operate the Oxygen Concentrator without the
air intake filter in place. If a second filter is provided, insert
the replacement filter before you clean the dirty filter.
Clean the dirty filter in a warm soap and water solution,
then dry thoroughly prior to use.
Note: The Manufacturer does not recommend the steriliza-
tion of this equipment.
Note: There is never a danger of depleting the oxygen in a
room when you use your oxygen concentrator unit.
WARNING:THE OXYGEN CONCENTRATOR
SHOULD NOT BE OPERATED OR PLUGGED
IN TO EXTERNAL (AC/DC) POWER WITHOUT
A BATTERY INSTALLED. DO NOT ATTEMPT
TO POWER ON THE UNIT OR CONNECT IT
TO EXTERNAL POWER WHEN THE BATTERY
PACK IS REMOVED.
ONLY REMOVE THE BATTERY PACK WHEN THE UNIT IS
POWERED OFF AND UNPLUGGED FROM THE POWER
SUPPLY. DO NOT ATTEMPT TO REMOVE THE BATTERY
PACK WHILE THE UNIT IS STILL ON OR PLUGGED INTO
THE POWER SUPPLY.
Note: If the oxygen concentrator has been stored for an ex-
tended period of time outside of its normal environmental
operating conditions shown in the table above, it should be
allowed to return to normal operating temperature before
being powered on.

10 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
Specifications
FreeStyle Comfort
Dimensions (with Single Battery) 10.0 x 7.3 x 3.1 in (25.4 x 18.5 x 7.9 cm)
Dimensions (with Double Battery) 11.0 x 7.3 x 3.1 in (27.9 x 18.5 x 7.9 cm)
Weight (with Single Battery Pack) 5 lbs (2.3 kg)
Weight (with Double Battery Pack) 6 lbs (2.7 kg)
Nominal Sound Level 43 dbA @ 2
Flow Settings Pulse Setting 1, 2, 3, 4, 5
O2 Output Setting Setting 1 - 210 mL/min
Setting 2 - 420 mL/min
Setting 3 - 630 mL/min
Setting 4 - 840 mL/min
Setting 5 - 1050 mL/min
Oxygen Concentration* 90% (+5.5% / -3%)
Oxygen Monitor Yes
Maximum Outlet Pressure <30 PSI
Dosing Sensitivity < -0.5 cmH2O
AC Power 100–240 VAC, 50-60Hz
DC Power 11–18 VDC (10 max amp)
Battery Re-Charge Time Single Battery: 3.5 hours
Double Battery: 6.0 hours
Battery Pack Durations Single Battery Duration: Setting 2 - up to 4 hours
Double Battery Duration: Setting 2 - up to 8 hours
Operating Temperature** 41°F to 104°F (5°C to 40°C)
Transportation and Storage Temp.
(Unit)
-13°F to +158°F (-25°C to +70°C) up to 10000 ft (3048 m)
Transportation and Storage Temp.
(Battery)
-13°F to +158°F (-25°C to +70°C) up to 10000 ft (3048 m)
Operating Altitude** -1250 to 10,000 ft (-381 to 3048 m) (tested to 700 – 1060 hPa)
Operating Humidity 15 - 95% relative humidity (non-condensing)
Limited Warranty 3 years unit
1 year battery & power supplies
* Based on an atmospheric pressure of 14.7 psi (101 kPa) at 70°F (21°C)
**Operating outside of these operational specications can limit the concentrator’s ability to meet Oxygen Concentration specication at
higher liter ow rates. Warm up screen may continue to display until the concentrator has reached target concentration or up to 15 minutes.
Continue to use unit during this time.
The expected service life is a minimum of ve years. The expected shelf life of the sieve beds is approximately one year if concentrator is
unused during the entire period.

PN MN232-C4 C | User Manual ENG - 11
FreeStyle Comfort
1. Locate and position the FreeStyle Comfort in a proper
location for use.
a. The concentrator should be well-ventilated so that
the air intake lters and air outlet are not obstructed.
b. The concentrator should be positioned so that all
audible and visual indicators and alarms can be
easily seen and heard.
c. Be sure the air intake lters are in place before
operating the unit. If the unit is missing a lter,
contact your equipment provider.
2. Install a Battery Pack in the concentrator.
a. Align the battery with the bottom housing from the
center of the FreeStyle Comfort.
b. Slide the battery inward until you hear a click to
conrm that it has locked in place.
3. Insert the AC or DC power supply into the power port
receptacle on the front, bottom right side of the unit.
4. Connect a nasal cannula to the oxygen outlet barb.
Ensure the connection is secure before operation.
NOTE: Any cannula(s) used other than the recommended
may affect performance.
Note: To Equipment Provider:The following oxygen
administration accessories are recommended for use with
the Oxygen Concentrator:
• Nasal Cannula with 7 feet (2.1 m) of tubing (1 to 6 LPM):
PN 5408-SEQ
• For any additional recommended accessories, please see
the Accessories Catalog (PN ML-LOX0010) available on
www.CAIREmedical.com.
A firebreak is required for use with any cannula.
• CAIRE offers the OxySafe™. This is intended to be used in
conjunction with the oxygen concentrator. The OxySafe™ is
a thermal fuse to stop the flow of gas in the event that the
downstream cannula or oxygen tubing is ignited and burns
to the OxySafe. It is placed in-line with the nasal cannula or
oxygen tubing between the patient and the oxygen outlet of
the FreeStyle Comfort.
For proper use of the OxySafe, always refer to the
manufacturer’s instructions (included with each OxySafe kit).
CAIRE offers an OxySafe™ kit that includes a cannula
headpiece, OxySafe™, and 7’ tubing: PN 20629671.
Operating Instructions

12 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
5. Turn on the FreeStyle Comfort by pressing the power
button and select your prescribed ow setting utilizing
the increase (+) or decrease (-)ow buttons.
A brief audible alarm will sound to indicate the device
has powered on.
Note: When the FreeStyle Comfort is initially turned on the
default flow setting is 2. If the setting is changed, the unit
will power on to the previous flow setting.
6. Position the nasal cannula on your face per the
manufacturer’s instructions provided with the cannula
and breathe normally. You should feel a puff of oxygen
delivered through the nasal cannula each time you
inhale.
7. To change the ow setting, press the increase (+) or
decrease (-) ow buttons to the desired ow rate. It is
normal to hear a difference in sound as you change the
ow settings.
Pulse Volume (mL)*
Setting
Breath
Rate
12345
15 14 28 42 56 70
20 10.5 21 31.5 42 52.5
25 8.4 16.8 25.2 33.6 42
30 7 14 21 28 35
35 6 12 18 24 30
40 5.3 10.5 15.8 21 26.3
*Tolerance is +/- 15%
8. Turn the FreeStyle Comfort off by pressing the power
button.
Note: The display screen will enter standby mode and dim
after 20 seconds. Press any button to wake the screen out
of standby mode.

PN MN232-C4 C | User Manual ENG - 13
FreeStyle Comfort
Power Supplies
The FreeStyle Comfort can be powered in 3 ways:
• Rechargeable Battery Pack
• AC Power
• DC Power
Information on the operation of each of these components
is in the following sections.
WARNING: USE ONLY THE POWER SUPPLIES
OUTLINED IN THIS USER’S MANUAL. USE OF
NON-CAIRE POWER SUPPLIES AND BATTERY
PACKS CAN CAUSE DAMAGE TO THE UNIT
AND IMPROPER OPERATION.
BATTERY PACK
The FreeStyle Comfort can be operated by the
rechargeable battery pack which is supplied with the
device. There are no operational limitations of the
concentrator when running from the battery pack. All ow
rates are available on battery power.
INSTALLING THE BATTERY
Align the battery with the bottom housing from the center
of the FreeStyle Comfort. Push the battery inward until
you hear a click to conrm that it has locked in place.
REMOVING THE BATTERY
Push the battery release button downward away from the
FreeStyle Comfort. While HOLDING this button, slide the
battery out by pulling it away from the concentrator.
WARNING:THE OXYGEN CONCENTRATOR
MUST BE OFF AND DISCONNECTED FROM
EXTERNAL POWER BEFORE REMOVING THE
BATTERY PACK.
CHECKING BATTERY PACK CHARGE
To check the battery charge when it is installed in the
FreeStyle Comfort, reference the battery icon and the
estimated time remaining on the display.
80–100%
60–80%
40–60%
20–40%
20%

14 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
Note: If the battery is in the process of charging, a plug
indicator will show instead of the charge percentage
remaining.
To check the battery charge when it is not installed in
the FreeStyle Comfort, lay it at and press the TEST
button. The battery gauge indicator lights (25-100%) will
illuminate to the right of the TEST button to indicate the
level of the battery pack charge.
INITIAL CHARGING
The new battery supplied with your FreeStyle Comfort is
only partially charged when it is shipped from the factory.
Before using for the rst time, you should fully charge the
battery pack using either AC or DC power.
GENERAL CHARGING INFORMATION
The FreeStyle Comfort will recharge the battery pack
anytime it is installed in the concentrator and the
concentrator is connected to an external AC or DC power
source (except on an airplane).
Battery is fully charged when it displays 100%.
Alternately, the battery pack may be charged using the
optional desktop charger.
BATTERY OPERATING DURATION
When external AC or DC power is disconnected, the
concentrator will automatically switch over to using
battery power if a charged battery is installed. The table
below shows the typical durations for a new battery pack.
Battery pack durations will remain constant regardless of
your breath rate.
Pulse
Setting
Single (8-cell) Bat-
tery Duration
Double (16-cell)
Battery Duration
1 up to 8 hours up to 16 hours
2 up to 4.25 hours up to 8.5 hours
3 up to 3 hours up to 6 hours
4 up to 2.25 hours up to 4.5 hours
5 up to 2 hours up to 4 hours
TYPICAL BATTERY RECHARGE TIME
The typical time to fully recharge your battery pack from
a fully discharged battery is 3.5 hours for a single battery,
and 6.0 hours for a double battery.
Note: The battery may not initially start charging if the
battery pack has been fully depleted.
BATTERY SERVICE LIFE
The FreeStyle Comfort batteries are designed to last 300
charge/discharge cycles.

PN MN232-C4 C | User Manual ENG - 15
FreeStyle Comfort
AC & DC Power Supply
The FreeStyle Comfort comes standard with AC and DC
power supplies.
The AC power supply includes the following:
a. AC Power brick that operates between 100-
240 volts, 50-60Hz.
b. AC Power cord to connect to the power brick and
corresponding AC outlet.
The DC power supply consists of a cord that plugs directly
into the unit and the DC outlet.
AC POWER
AC power is for use at home or wherever standard AC
outlet power is available. The FreeStyle Comfort is fully
functional on AC power. The FreeStyle Comfort will also
recharge the battery pack any time AC power is available
(except on an airplane). The battery pack will recharge
whether the FreeStyle Comfort is powered on or off.
WARNING: DO NOT CONNECT EXTERNAL
POWER WITHOUT A BATTERY PACK IN-
STALLED IN THE OXYGEN CONCENTRATOR.
To connect the FreeStyle Comfort to AC Power:
1. Connect the AC power brick to the power connector
inlet on the front, right bottom of the FreeStyle
Comfort. Be sure to push inward so that the connection
is secure.
2. Connect the AC power cord to the AC power brick.
3. Connect the opposite end of the AC power cord to the
wall or other appropriate electrical outlet.

16 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
4. Turn on the FreeStyle Comfort by pressing the power
button and select your prescribed ow setting utilizing
the increase (+) or decrease (-)ow buttons.
Note: If the battery pack needs to be recharged, the battery
icon on the display will have a single orange bar.
DC POWER
DC power is for use in the accessory outlets of
automobiles, boat, or other motor vehicles. The FreeStyle
Comfort is fully functional for use on DC power. The
FreeStyle Comfort will also recharge the battery pack if
needed any time DC power is available. The battery pack
will recharge both if the unit is off, or on and in use.
WARNING: DO NOT CONNECT
EXTERNAL POWER WITHOUT A BATTERY
PACK INSTALLED IN THE OXYGEN
CONCENTRATOR.
WARNING: DO NOT OPERATE THE DEVICE ON 12 VDC
CAR OUTLETS WHILE THE VEHICLE IS TURNED OFF.
1. Turn on your motor vehicle.
2. Connect the DC power supply to the power port
receptacle front, bottom right side of the FreeStyle
Comfort. Be sure to push inward so that the connection
is secure.
3. Connect the opposite end of the DC power cord to the
automobile or other DC accessory outlet.
4. Turn on the FreeStyle Comfort by pressing the power
button and select your prescribed ow setting utilizing
the increase (+) or decrease (-)ow buttons.
Note: If the battery pack needs to be recharged, the battery
icon on the display will have a single orange bar.

PN MN232-C4 C | User Manual ENG - 17
FreeStyle Comfort
Cleaning, Care & Routine
Maintenance
ROUTINE MAINTENANCE
Servicing of internal components inside of the cabinet of
the FreeStyle Comfort must be performed by the oxygen
provider.
The operator of the unit is responsible for the following
maintenance procedures.
• Weekly – Clean the Air Intake Filters
WARNING: DO NOT ATTEMPT TO OPEN
OR REMOVE THE PLASTIC COVERS OF
THE OXYGEN CONCENTRATOR. THE UNIT
SHOULD ONLY BE OPENED BY A QUALIFIED
SERVICE TECHNICIAN.
AIR INTAKE FILTERS
Air enters the FreeStyle Comfort through air intake lters
located on the front, bottom of the oxygen concentrator.
These lters prevent dust and other large particles in the air
from entering the unit.
At least once per week, the air intake lters should be
cleaned. Your oxygen provider may advise you to clean
them more frequently, depending upon the operating
conditions. Follow these steps to properly clean the air
intake lters.
1. Remove the two lters from the front of the FreeStyle
Comfort by pushing up on the corresponding tab and
pulling outward.
2. Wash both lters in a warm solution of soap and water.
3. Rinse the lters thoroughly and remove excess water
with a soft, lint-free cloth. Ensure the lters are
completely dry before replacing it.
4. Re-install the clean, dry lters.
WARNING: DO NOT OPERATE THE OXYGEN
CONCENTRATOR WITHOUT THE AIR INTAKE
FILTER IN PLACE.
BATTERY PACK CARE
Do not allow the battery pack to be exposed to liquids.
Do not attempt to disassemble or open the battery pack.
Do not expose the battery to open ames.
Do not drop the battery pack.
Keep the battery pack away from children.
If your battery pack appears damaged, contact your oxygen
provide before use.
Do not place the battery in or near a microwave or other
cooking appliances.
BATTERY PACK STORAGE
The oxygen concentrator battery does not need to be fully
discharged before recharging. It is recommended to charge
the oxygen concentrator battery after each use.
Do not leave the battery in a location exposed to excessive
heat, such as in direct sunlight or in a car. Doing so could
cause the battery’s performance and life to deteriorate. It
may also cause the battery to generate heat, smoke, catch
re, or explode. The battery pack should be stored in a
stable environment characterized by low-humidity (less
than 70% RH) and free of corrosive gasses. To prevent
rust, avoid conditions that can create condensation such as
rapid uctuations in the ambient temperature.

18 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
CLEANING
Turn OFF the unit and disconnect from AC or DC power
before any cleaning or disinfection. DO NOT spray the
outer case directly. Use a damp (not wet) cloth or sponge.
Spray the cloth or sponge with a mild disinfectant solution
to clean the cabinet and power supplies. Proceed as
directed by the cleaner manufacturer.
WARNING:TURN OFF THE UNIT AND
DISCONNECT THE POWER CORD FROM
THE ELECTRICAL OUTLET BEFORE YOU
CLEAN THE UNIT TO PREVENT ACCIDENTAL
ELECTRICAL SHOCK AND BURN HAZARD.
ONLY YOUR EQUIPMENT PROVIDER OR A
QUALIFIED SERVICE TECHNICIAN SHOULD
REMOVE THE COVERS OR SERVICE THE
UNIT.
WARNING: CARE SHOULD BE TAKEN TO PREVENT THE
OXYGEN CONCENTRATOR AND THE BATTERY PACK
FROM GETTING WET OR ALLOWING FLUIDS TO ENTER
THE UNIT. THIS CAN CAUSE A MALFUNCTION OR
SHUT DOWN, AND CAUSE AN INCREASED RISK FOR
ELECTRICAL SHOCK OR BURNS.
WARNING: DO NOT USE LIQUID DIRECTLY ON THE UNIT.
A LIST OF UNDESIRABLE CHEMICAL AGENTS INCLUDES
BUT IS NOT LIMITED TO THE FOLLOWING:ALCOHOL
AND ALCOHOL-BASED PRODUCTS, CONCENTRATED
CHLORINE-BASED PRODUCTS (ETHYLENE CHLORIDE),
AND OIL-BASED PRODUCTS. THESE ARE NOT TO BE
USED TO CLEAN THE PLASTIC HOUSING ON THE
CONCENTRATOR, AS THEY CAN DAMAGE THE UNIT.
WARNING: CLEAN THE CABINET, CONTROL PANEL,
AND POWER CORD ONLY WITH A MILD HOUSEHOLD
CLEANER APPLIED WITH A DAMP (NOT WET) CLOTH
OR SPONGE, AND THEN WIPE ALL SURFACES DRY.
DO NOT ALLOW ANY LIQUID TO GET INSIDE THE
CONCENTRATOR. PAY SPECIAL ATTENTION TO THE
OXYGEN OUTLET FOR THE CANNULA CONNECTION TO
MAKE SURE IT REMAINS FREE OF DUST, WATER, AND
PARTICLES.
WARNING: USE A DAMP (NOT WET) CLOTH OR SPONGE
TO CLEAN THE BATTERY PACK. FIRST SPRAY THE CLOTH
OR SPONGE WITH A MILD HOUSEHOLD CLEANER AND
CLEAN THE BATTERY PACK HOUSING.
WARNING: DO NOT DISINFECT/CLEAN WITH
AUTOMATED WASHING SYSTEM.
CANNULA REPLACEMENT
Always follow the cannula manufacturer’s instructions
for proper use. Replace the nasal cannula or oxygen
tubing every 3 to 6 months (if daily use, 3 months) as per
manufacturer’s recommendation
as recommended by the cannula manufacturer or your
oxygen provider. Your physician or oxygen provider will
provide you with cleaning and replacement instructions.
Additional supplies for replacement are available through
your oxygen provider.
For storage of a month or more, a discharged or partial
charged state of charge between 50% and 75% (two to
three LEDs) is recommended. Once charged, remove the
battery from the oxygen concentrator.

PN MN232-C4 C | User Manual ENG - 19
FreeStyle Comfort
Alarm Conditions
Priority # Alarm
Description
Display Audible
Signal
More Details
1 System
Malfunction
Battery Over
Temp
1 beep
every
20 sec
Unit will alarm when battery temperature is
approaching saftey shutdown threshold.
If shutdown threshold is reached, unit will shut
down. If external power is connected, alarm
screen will display and audible alarm will
continue for 2 min.
2 System
Malfunction
High
Temperature
1 beep
every
20 sec
Unit will alarm when internal temperature is
approaching shutdown threshold.
If shutdown threshold is reached, unit will shut
down and alarm screen will display and audible
alarm will continue for 2 min.
3 System
Malfunction
High
Pressure
1 beep
every
20 sec
If shutdown threshold is reached, unit will shut
down and alarm screen will display and audible
alarm will continue for 2 min
4 No Breath
detected
1 beep
every
30 sec
No breath detected for 15 seconds.
Activated after first breath or warm up screen
is off, whichever comes sooner.
5 Low Battery
Shut Down
1 beep
every
30 sec
Alarms until battery runs out of power and unit
shuts down
6 Warm Up none Unit will start by auto-dosing until a breath is
detected or Warm up ends, whichever is sooner.
7 Low
Concentration
1 beep
every
30 sec,
for up to
5 min

20 - ENG PN MN232-C4 C | User Manual
FreeStyle Comfort
Priority # Alarm
Description
Display Audible
Signal
More Details
8 System
Malfunction
Flow Rate
(OCD Valve
Failure,
Obstruction of
Gas Pathway)
1 beep
every
30 sec
9 Low Battery
Warning
1 beep, no
repeat
10 Breathing
Rate
Exceeded
1 beep
every
60 sec
Breathing Rate exceeds 40 bpm
11 System
Malfunction
Fan Failure
none
12 System
Malfunction
Low Pressure
none
13 System
Malfunction
Low Temp
none
Info Start up 1 info
beep
Screen displays at power-on and you should
hear one beep to confirm buzzer is functioning
Start up screen display current firmware
revision in bottom right corner.
Info Normal Run
Screen (no
DC Power
connected)
none