Inogen One G4 User manual

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USER MANUAL

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Contents
Chapter 1 1 Intended Use, Contraindications and General Precautions
Chapter 2 3 Description of the Inogen One® G4 Oxygen Concentrator
3 Important Parts of the Inogen One® G4 Oxygen Concentrator
4 User Interfaces
5 Input / Output Connections
6 Power Supply Options
8 Inogen One® G4 Accessories
Chapter 3 11 Operating Instructions
11 General Instructions
15 Additional Operating Instructions
19 Battery Operating Instructions
20 Battery Care and Maintenance
Chapter 4 21 Inogen One® G4 Oxygen Concentrator Audible and
Visible Signals (including Alerts)
Chapter 5 29 Troubleshooting
Chapter 6 31 Cleaning, Care and Maintenance
31 Cannula Replacement
31 Case Cleaning
31 Filter Cleaning and Replacement
33 Inogen One® G4 Column Change Procedure
36 Other Service and Maintenance
36 Disposal of Equipment and Accessories
Chapter 7 37 Symbols Used on Concentrator and Accessories
Chapter 8 39 Inogen One® G4 System Specifications

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1Intended Use, Contraindications
and General Precautions
Intended Use, Contraindications and General Precautions Chapter 1
Intended Use
The Inogen One® G4 Oxygen Concentrator is used on a prescriptive basis by patients
requiring supplemental oxygen. It supplies a high concentration of oxygen and is used
with a nasal cannula to channel oxygen from the concentrator to the patient. The Inogen
One® G4 may be used in home, institution, vehicle and various mobile environments.
CAUTION USA Federal law restricts this device to sale by or on the order of a
physician. May also be applicable in other countries.
CAUTION Nasal cannula should be rated for 3 liters per minute (e.g. Salter Labs
16SOFT) to ensure proper patient usage and oxygen delivery.
WARNING Availability of an alternate source of oxygen is recommended in case of
power outage or mechanical failure. Consult your equipment provider for
type of back-up system recommended.
CAUTION It is the responsibility of the patient to make back-up arrangements for
alternative oxygen supply when traveling; Inogen assumes no liability for
persons choosing not to adhere to manufacturer recommendations.
The expected life for the Inogen One® G4 Oxygen System is 5 years, with the exception
of the sieve beds (metal columns) which have an expected life of 1 year and the batteries,
which have an expected life of 500 full charge/discharge cycles.
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Contraindications
WARNING This device is NOT INTENDED to be life sustaining or life supporting.
CAUTION Under certain circumstances, the use of non-prescribed oxygen therapy
can be hazardous. This device should be used only when prescribed
by a physician.
CAUTION Additional monitoring or attention may be required for patients using
this device who are unable to hear or see alerts or communicate
discomfort. If the patient shows any signs of discomfort, a physician
should be consulted immediately.
CAUTION The Inogen One® G4 is not designed or specified to be used in
conjunction with a humidifier, nebulizer or connected with any other
equipment. Use of this device with a humidifier, nebulizer or connected
with any other equipment may impair performance and/or damage
the equipment. Do not modify the Inogen One® G4 Concentrator. Any
modifications performed on the equipment may impair performance or
damage equipment and will void your warranty.
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General Precautions
WARNING The device produces enriched oxygen gas, which accelerates combustion.
Do NOT ALLOW SMOKING OR OPEN FLAMES within 10 feet of this device
while in use.
WARNING Do not submerse the Inogen One® G4 or any of the accessories in liquid.
Do not expose to water or precipitation. Do not operate in exposed rain.
This could lead to electrical shock and/or damage.
CAUTION Do not use oil, grease, or petroleum-based products on or near the Inogen
One® G4.
CAUTION Never leave the Inogen One® G4 in an environment which can reach
high temperatures, such as an unoccupied car in high temperature
environments. This could damage the device.

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Description of the Inogen One® G4
Oxygen Concentrator
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On/Off
Button
Breath
Detection Light
*Display
Audible Alert Button Alert Light
Flow Control
Description of the Inogen One® G4 Oxygen Concentrator Chapter 2Description of the Inogen One® G4 Oxygen Concentrator Chapter 2
* Actual display appearance may vary.
* Remove the static cling FCC label from the user interface panel
(applicable for all Bluetooth models).
Important Parts of the Inogen One® G4 Oxygen Concentrator

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User Controls
ON / OFF Button
Press once to turn “ON”; Press and hold for one second to turn “OFF”.
Audible Alert Button
Pressing this button will toggle the Inogen One® G4’s breath detection
audible alert on and off.
Breath Detection Alert Mode. The Inogen One® G4 will alert with
audible and visual signals for “no breath detected” when this mode
is enabled and no breath has been detected for 60 seconds.
At 60 seconds, the device will enter into auto pulse mode and once
another breath is detected, the device will exit auto pulse mode and
deliver normally on inspiration. The display’s mode indication area will
show a bell icon, flashing yellow light and display message when the
alert is enabled.
If power is lost, the breath detection audible alert remains set in the
user preferred mode.
Flow Setting Control Buttons
Use the – or + flow setting control buttons to select the setting
as shown on the display. There are three settings, from 1 to 3.
User Interfaces
Display
This screen displays information regarding flow setting, power status,
battery life and errors. If you would like to change the language on the
Inogen LCD Screen contact your Equipment Provider for instructions.
Actual display appearance may vary.

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Description of the Inogen One® G4 Oxygen Concentrator Chapter 2
User Interfaces (continued)
Indicator Lights
A green light indicates breath detection.
A yellow light indicates either a change in operating status or
a condition that may need response (alert). A flashing light is
higher priority than non-flashing.
Audible Signals
An audible signal (beep) indicates either a change in operating
status or a condition that may need response (alert). More
frequent beeps indicate higher priority conditions.
Backlight
A backlight will illuminate the screen for 15 seconds when the
on/off button is briefly pressed.
Input / Output Connections
Particle Filter
The filter must be in place at the intake end of the concentrator
during operation to keep input air clean.
Cannula Nozzle Fitting
The nasal cannula connects to this nozzle for Inogen One® G4
output of oxygenated air.
DC Power In
Connection for external power from the AC power supply or
DC power cable.
USB Port
For service use only.

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Power Supply Options
Single and Double Rechargeable Lithium Ion Batteries
The battery will power the Inogen One® G4 without
connection to an external power source. When fully
charged, a single battery will provide up to 2.7 hours of
operation; a double battery will provide up to 5 hours of
operation. The battery recharges when properly installed
in the Inogen One® G4 and the concentrator is connected
to AC or DC power. Recharging time is up to 3 hours for a single battery and 5 hours for a
double battery. See information in the “Battery Care and Maintenance” section.
Power Supply
Overview
The Inogen One® G4 AC power supply (BA-401) is used to power the Inogen One® G4
concentrator from an AC power source.
Description
The Inogen One® G4 AC power supply is specifically designed for use with the Inogen
One® G4 Oxygen Concentrator (IO-400). The AC power supply provides the precise
current and voltage required to safely power the Inogen One® G4 and is designed to
operate from specified AC power sources. When used with AC power sources, the power
supply automatically adapts to input voltages from 100V to 240V (50-60HZ) permitting
use with most power sources throughout the world.
The AC power supply will charge the Inogen One® G4 Batteries when used with AC input
power. Due to aircraft power limitations, the AC Power Supply cannot be used to charge
the Inogen One® G4 Battery when used on an aircraft.
The AC power supply is used with the following components:
• Power supply with attached power output cable to connect to the Inogen One® G4
• AC power input cable
The DC power cable (BA-306) is specifically designed for use with the Inogen One®
G4 Oxygen Concentrator (IO-400). The DC power input cable connects directly to
the automobile cigarette lighter or auxiliary DC power supply. Refer to Chapter 3 for
additional operating instructions for use with DC power source.

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Description of the Inogen One® G4 Oxygen Concentrator Chapter 2
* Actual product appearance may vary.
AC Power
Plug*
Power Output Plug (Plug into Concentrator)
LED Indicator Light*
AC Input
Inogen One AC Power Supply Model# BA-401
Inogen One G4 DC Power Cable Model# BA-306
DC cigarette lighter
Power Plug for use
in Automobile/RV/
Boat/Aircraft
Power Output Plug
(Plug into Concentrator)
WARNING Do not use power supplies or power cables other than those specified
in this user manual. The use of non-specified power supplies or power
cables may create a safety hazard and/or impair equipment performance.
Do not wrap cords around power supply for storage. Do not drive, drag
or place objects over cord. Doing so may lead to damaged cords and a
failure to provide power to the concentrator. To avoid danger of choking
or strangulation hazard, keep cords away from children and pets.
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Inogen One® G4 Accessories
WARNING Do not use power supplies/adapters or accessories other than those specified
in this user manual. The use of non-specified accessories may create a safety
hazard and/or impair equipment performance.
Nasal Cannula
A nasal cannula must be used with the Inogen One® G4 to provide
oxygen from the concentrator. A single lumen cannula up to 25 feet
in length is recommended to ensure proper breath detection and
oxygen delivery.
WARNING To avoid danger of choking and strangulation hazard, keep tubing away from
children and pets.
NOTE Increasing the cannula length may reduce the perceived noise during oxygen
bolus delivery.
NOTE When using a cannula 25ft. in length with the Inogen One® G4, an increase in
flow setting may be required, consult your physician.
Inogen One G4 Carry Strap (CA-401)
The carry strap is designed to attach directly to the concentrator.
There is a metal slide for ease of length adjustments, a shoulder
pad for comfort and a sewn on velcro tab to wrap up that extra
cannula tubing.
Carry Bag (CA-400)
The Carry Bag provides a protective cover with a handle and shoulder strap to enable you to
carry the Inogen One® G4. The Inogen One® G4 can be operated using battery power during
transport with the Carry Bag.
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Inogen One® G4 Optional Accessories
External Battery Charger (BA-403)
The Inogen One® G4 external battery charger will charge the Inogen One® G4 single and
double batteries.
1. Plug the External Battery Charger AC power supply
cord into an electrical outlet.
2. Plug the External Battery Charger AC power supply
into the battery charger.
3. Slide your charger onto the Inogen One G4 Battery
by clicking and locking into the charger.
4. When the battery is in the correct position, a solid
red light will indicate that the battery is charging.
5. When the green light illuminates, the battery is
fully charged.
CAUTION Avoid touching the recessed electrical contacts of the External Battery
Charger; damage to contacts may affect charger operation.
NOTE These contacts are not powered unless a battery is in place and charging.
NOTE To completely remove power from the External Battery Charger,
remove the plug.
Description of the Inogen One® G4 Oxygen Concentrator Chapter 2

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Operating Instructions Chapter 3
Operating Instructions
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General Instructions
1. Place the Inogen One® G4 in a well ventilated location.
Air intake and exhaust must have clear access.
Locate the Inogen One® G4 in such a way that any
auditory alerts may be heard. Always operate the
Inogen One® G4 in an upright position (see image
for proper orientation).
WARNING Avoid use of the Inogen One® G4 in presence of pollutants, smoke
or fumes. Do not use the Inogen One® G4 in presence of flammable
anesthetics, cleaning agents or other chemical vapors.
CAUTION Do not obstruct air intake or exhaust when operating the device.
Blockage of air circulation or proximity to a heat source may lead to
internal heat buildup and shutdown or damage to the concentrator.
CAUTION The Inogen One® G4 Concentrator is designed for continuous use. For
optimal sieve bed (columns) life, the product should be used frequently.
2. Ensure particle filter is in place.
CAUTION Do not operate the Inogen One® G4 without the
particle filter in place. Particles drawn into the
system may damage the equipment.
Intake
Exhaust
Exhaust
This side
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3. Install the battery.
Insert the Inogen One® G4 battery by sliding
battery into place until the latch returns to the
upper position.
CAUTION The Inogen One® G4 battery acts as a secondary power supply in the event
of a planned or unexpected loss of the AC or DC external power supply. When
operating the Inogen One® G4 from an AC or DC external power supply, a
properly inserted Inogen One® G4 battery should be maintained in the unit.
This procedure will ensure uninterrupted operation and will operate all alerts
and alerts in the event of a loss of the external power supply.
4. Connect the Power Supply.
Connect the AC input plug to the power supply. Connect the AC power
plug to the power source and connect the power output plug to the
Inogen One® G4. The green LED on the power supply will be illuminated
and a beep will sound from the concentrator.
CAUTION Ensure the power supply is in a well ventilated location as it relies on
air circulation for heat dissipation. The power supply may become hot during
operation. Make sure the power supply cools down before handling.
CAUTION The power supply is not water resistant.
CAUTION Do not disassemble the power supply. This may lead to component failure
and/or safety risk.
CAUTION Do not place anything in the power supply port other than the supplied wall
cord. Avoid the use of electrical extension cords with the Inogen One® G4.
If an extension cord must be used, use an extension cord that has an
Underwriters Laboratory (UL) Mark and a minimum wire thickness of
18 gauge. Do not connect any other devices to the same extension cord.

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Operating Instructions Chapter 3
NOTE Under certain conditions (see Technical Specifications) the power
supply may shut down. The green LED will blink or will no longer be
illuminated. If this occurs, disconnect the power supply for at least 10
seconds and reconnect.
NOTE When the power supply is disconnected from the AC outlet,
also disconnect it from the concentrator to avoid unnecessary
battery discharge.
5. Connect the nasal cannula tubing to the nozzle fitting.
Nozzle fitting is located on the top of the Inogen One® G4.
Use of a single lumen cannula up to 25 feet in length is
recommended to ensure proper breath detection and oxygen
delivery. Additional titration may be needed to ensure proper
oxygen delivery when using a particular cannula.
CAUTION To ensure oxygen flow, ensure that the nasal cannula is properly connected to
the nozzle fitting and that the tubing is not kinked or pinched in any way.
CAUTION Replace the nasal cannula on a regular basis. Check with your equipment
provider or physician to determine how often the cannula should be replaced.
6. Turn on your Inogen One® G4 by pressing the ON/OFF Button.
A single short beep will sound after the Inogen logo is displayed.
“Please Wait” will appear while the concentrator starts up. The display
will indicate the selected flow setting and power condition. Following a
brief start-up sequence, a warm up period up to 2 minutes will initiate.
During this time period the oxygen concentration is building to but may
not have reached specification. Additional warm up time may be needed
if your Inogen One® G4 has been stored in extremely cold temperatures.
7. Set the Inogen One® G4 Concentrator to the flow rate prescribed by your
physician or clinician.
Use the + or – setting buttons to adjust the Inogen One® G4 to the desired setting.
The current setting can be viewed on the display.

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8. Position the nasal cannula on your face and breathe through your nose.
The Inogen One® G4 will sense the onset of inhalation and deliver
a burst of oxygen at a precise time when you inhale. The Inogen
One® G4 will sense each breath and continue to deliver oxygen in
this manner. As your breathing rate changes, the Inogen One® G4
will sense these changes and deliver oxygen only as you need it. At
times, if you inhale very quickly between breaths the Inogen One®
G4 may ignore one of the breaths, giving the appearance of a
missed breath. This may be normal as the Inogen One® G4 senses
and monitors the changes in your breathing pattern. The Inogen
One® G4 will normally sense the next breath and deliver oxygen
accordingly.
A green light will flash each time a breath is detected. Make certain that the nasal
cannula is properly aligned on your face and you are breathing through your nose.
WARNING If you begin to feel ill or are experiencing discomfort while using
this device, consult your physician immediately.
CAUTION The Inogen One® G4 is designed to provide a flow of high purity oxygen. An
advisory alert, “Oxygen Low”, will inform you if oxygen concentration drops.
If alert persists, contact your equipment provider.
General
To remove power, unplug the input cord from its source (i.e., AC wall outlet, DC car
cigarette lighter adapter) and disconnect it from the Inogen One® G4.
CAUTION Ensure the power supply is powered from only one power source
(AC or DC) at any given time.

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Operating Instructions Chapter 3
Additional Operating Instructions
For Use In Home with AC Power
For operation of the power supply using an AC power source, follow these instructions:
1. Connect the AC input to the power supply.
2. Connect the AC power plug to the power source and connect the power output plug
to the Inogen One® G4. The green LED will be illuminated, indicating the
power supply has input power.
Traveling with your Inogen One® G4 System
The Inogen One® G4 System makes travel by boat, car or train more convenient for
oxygen users than ever before. Now you get the same quality performance and
convenience while on the go that you’re used to receiving from your Inogen One® G4 at
home. Here are some useful and important instructions for maximizing performance and
convenience when using your Inogen One® G4 while traveling.
You should begin planning for a trip with a checklist of items to remember. This checklist
should include:
✓ AC power supply and DC power cable
✓ Extra Battery(s) if required
✓ Important phone numbers, such as those of your physician and home healthcare
provider, or providers in the area you will be traveling
✓ Plan for backup oxygen in the event of a prolonged power outage or
mechanical failure
For Use In Automobile/RV/Boat/Aircraft
For operation using a DC power source, follow these instructions:
1. Connect the DC power output plug to the Inogen One® G4.
2. Connect the DC power plug (Cigarette Lighter Adapter) to
the power source.
3. The plug should insert into the socket without excessive
force and securely remain in place.

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4. Check the device display screen to confirm that an external power supply is connected.
An icon of a battery with a lightning bolt or an AC power plug will be displayed on the
screen, indicating that external power is connected and functioning properly.
WARNING Ensure that the automobile power socket is adequately fused for the Inogen
One® G4 power requirements (minimum 15 Amp). If the power socket cannot
support a 15 Amp load, the fuse may blow or the socket may be damaged.
WARNING The tip of the Cigarette Adapter Plug becomes HOT when in use. Do not touch
the tip immediately after removal from an auto cigarette lighter socket.
CAUTION Ensure the automobile power socket is clean of cigarette ash and the adapter
plug fits properly, otherwise overheating may occur.
CAUTION Do not use the power supply with a cigarette plug splitter or with an
extension cable. This may cause overheating of the DC power input cable.
CAUTION Do not jump start the automobile with the DC power cable connected.
This may lead to voltage spikes which could shut down and/or damage the
DC power input cable.
CAUTION When powering the Inogen One® G4 in an automobile ensure the vehicle’s
engine is running first, before connecting DC cable into cigarette lighter adapter.
Operating the device without the engine running may drain the vehicle’s battery.
CAUTION A change in altitude (for example, from sea level to mountains) may affect total
oxygen available to the patient. Consult your physician before traveling to
higher or lower altitudes to determine if your flow settings should be changed.
Traveling By Air
The Inogen One® G4 conforms to all applicable FAA requirements for POC use on board an
aircraft.
Planning Your Flight
When flying with the Inogen One® G4, you must inform the airline that you will be using your
Inogen One® G4 on board the aircraft. You should contact the Special Assistance desk of the
airline on which you will be traveling to learn of any paperwork, etc. that might be needed.
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