Interacoustics Air Fx User manual

Instructions for Use - US
Air Fx
Caloric Irrigator
Science
made
smarter
8525533 / D-0128226 – A – 2020/12

Copyright © Interacoustics A/S All rights reserved. Information in this document is proprietary to
Interacoustics A/S. The information in this document is subject to change without notice. No part of this
document may be reproduced or transmitted in any form or by any means without a prior written permission
of Interacoustics A/S.
FireWire® is a registered trademark of Apple Inc., registered in the United States and other countries.
Windows® is a registered trademark of the Microsoft Corporation, registered in the United States and other
countries.

Table of Contents
1INTRODUCTION .......................................................................................................................... 1
1.1 About this manual ............................................................................................................... 1
1.2 Intended use........................................................................................................................ 1
1.3 Product description ............................................................................................................. 2
1.4 Warnings and precautions .................................................................................................. 2
2UNPACKING AND INSTALLATION............................................................................................ 3
2.1 Unpacking and inspection ................................................................................................... 3
2.2 Storage................................................................................................................................ 3
2.3 Marking................................................................................................................................ 5
2.4 Panel connections............................................................................................................... 6
2.5 Preparing the irrigator for first use....................................................................................... 7
3OPERATING INSTRUCTIONS .................................................................................................... 8
3.1 Maintain distilled water level ............................................................................................... 8
3.2 Using the Air Fx with VNG/ENG software........................................................................... 8
3.3 Turn on the irrigator............................................................................................................. 8
3.4 Attaching the speculum....................................................................................................... 8
3.5 Select the irrigation temperature......................................................................................... 9
3.6 Perform the irrigation........................................................................................................... 9
3.7 Safety ................................................................................................................................ 10
3.8 Turn off the irrigator........................................................................................................... 10
3.9 Draining the water reservoir.............................................................................................. 10
4MAINTENANCE ......................................................................................................................... 12
4.1 General cleaning procedure.............................................................................................. 12
4.1.1 General Precautions ............................................................................................... 12
4.1.2 Recommended cleaning agent and frequency ....................................................... 12
4.2 After each patient .............................................................................................................. 12
4.3 Daily ................................................................................................................................ 13
4.4 Quarterly maintenance...................................................................................................... 13
4.5 Annual maintenance ......................................................................................................... 13
4.5.1 Air filter cleaning ..................................................................................................... 13
4.5.2 Water filter cleaning ................................................................................................ 13
4.5.3 Irrigator cleaning ..................................................................................................... 13
4.6 Annual irrigator verification................................................................................................ 13
4.7 Warranty and service ........................................................................................................ 14
4.7.1 Product warranty..................................................................................................... 14
4.7.2 Concerning product repair / service........................................................................ 14
4.8 Component disposal ......................................................................................................... 15
4.9 Malfunction ........................................................................................................................ 15
5GENERAL TECHNICAL SPECIFICATIONS ............................................................................. 17
5.1 Device specifications......................................................................................................... 17
5.2 EMC compliance ............................................................................................................... 18

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1Introduction
1.1 About this manual
This manual is valid for the Air Fx Caloric Irrigator.
Manufacturer: Interacoustics A/S
Audiometer Allé 1
5500 Middelfart
Denmark
Tel. : [phone]
Fax: [phone]
E-mail: info@interacoustics. com
Web: www. interacoustics. com
1.2 Intended use
The Air Fx air irrigator dispenses cool or warm air to perform caloric tests for vestibular diagnosis. The Air Fx
requires the operator to aim the air stream at the tympanic membrane through the patient’s ear canal,
creating a differential in ear temperatures and resulting in the patient’s eyes displaying nystagmus. Typically,
four irrigations are performed, a cool and a warm for each ear. Responses to the irrigation are then
compared to determine if one ear motion sensor is weaker than the other ear sensor.
The Air Fx can be used in conjunction with the Interacoustics VN415, VO425, VisualEyes 515, and
VisualEyes 525 VNG/ENG software and Micromedical Spectrum VNG via USB. When integrated with one of
the aforementioned software programs, use of the Air Fx irrigator will start the caloric test with the correct
irrigation temperature.
All personnel who operate the Air Fx should familiarize themselves with the contents of this manual prior to
using the Air Fx with a patient. Additional training can be requested via Interacoustics or one of their sales
representatives.
Air Fx should be used for irrigating the external ear canal only for the purposes of caloric stimulation as a
part of VNG/ENG test protocol. The device is not intended for clearing ear wax.
The otoscope handle uses disposable specula and has an integrated LED, which lights the eardrum without
obstructing the air flow or view of the ear canal. The otoscope handle has a magnifying glass designed to
improve visibility of the tympanic membrane.
If service is required, please contact Interacoustics or the local Interacoustics distributor.
The intended use of this product is for irrigation of the patient’s external auditory canal with either warm or
cool air for the purpose of assessing the peripheral vestibular system. The product is intended to be used by
a trained professional in a clinic, hospital, or rehab setting. The appropriate patient population includes
children and adults with normal external auditory canal and middle ear anatomy.
Contraindication:
Do not perform irrigation on patients with tympanic membrane perforations

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1.3 Product description
The Air Fx air irrigator dispenses cool or warm air to perform caloric tests for vestibular diagnosis.
The systems consist of the following included and optional parts:
Qty
Designation
Included parts:
1
1
1 pack
1 pack
1
1
1
1
1
Air Fx
Power cord IEC 10 Amperes
Speculum Ø 2. 75 mm
Speculum Ø 4. 25 mm
60cc syringe and tube
USB Cable, 3m (9. 8ft)
User’s Manual
Drain & Fill Kit
Hose Management Tape
1.4 Warnings and precautions
Throughout this manual the following meaning of warnings, cautions and notices are used:
The WARNING label identifies conditions or practices that may present danger
to the patient and/or user.
The CAUTION label identifies conditions or practices that could result in
damage to the equipment.
NOTICE NOTICE is used to address practices not related to personal injury.
WARNING
CAUTION

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2Unpacking and installation
2.1 Unpacking and inspection
Check for damage
When the instrument is received, ensure that you have received all the components on the shipping
checklist. All the components should be checked visually for scratches and missing parts before use. All the
contents of the shipment have to be checked for their mechanical and electrical functioning. If the equipment
is found faulty, please contact your local distributor immediately. Keep the shipping materials for the carrier’s
inspection and insurance claim.
Keep carton for future shipment
The instrument comes with shipping cartons, which are specifically designed for the components. It is
recommended to keep the cartons for future shipments in case of any need for return or service.
Reporting and returning procedure
Any missing part or malfunction or any damaged components (due to shipment) should be reported
immediately to the supplier/local distributor along with the invoice, serial number and a detailed report of the
issue. For any on-site service-related information, please contact your local distributor. If the system/
components are to be returned for service, please fill all the details related to product issues in the ‘Return
Report’, which is attached to this manual. It is very important that you describe all the known facts about the
issue in the return report, as this will help the engineer to understand and solve the problem to your
satisfaction. Your local distributor holds the responsibility for coordinating any service/return procedure and
related formalities.
2.2 Storage
Environmental conditions
The Air Fx is not suitable for use in the presence of flammable anesthetic
mixtures with air or oxygen or nitrous oxide as there may be an explosion risk.
IEC 60601-1 Standards Compliance
•Class I device for protection against electric shock
•Type B Applied Part for degree of protection against electric shock
•IPX0 rating for degree of protection against the ingress of water
(i. e. the system can be damaged if any water is spilled on the electronic equipment)
To avoid the risk of electrical shock, the Air Fx must only be connected to a
supply main with protective earth.

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Medical electrical equipment needs special precautions regarding electromagnetic compatibility (EMC) and
needs to be installed and put into service according to the EMC information provided.
•Portable and mobile radio frequency (RF) communications equipment (e. g. cell phones, personal
data assistants, etc.) can affect medical electrical equipment. This equipment should not be used at
close distances to the equipment
•Power frequency magnetic fields should be at levels characteristic of a typical location in a typical
commercial or hospital environment
Performance Conditions
Storage
Transport
Temperature
10°C ~ 40°C
60°F ~ 104°F
1°C ~ 50°C
34°F ~ 122°F
-15°C ~ 50°C
5°F ~ 122°F
Relative Humidity
See chart
10% ~ 90%
10% ~ 95%
Non-condensing
Non-condensing
Non-condensing
If the Air Fx is stored in near freezing conditions, allow time to thaw the unit
prior to using with patients.
To prevent condensation in the device, operate at temperature and humidity below the graphed line.
% RH
40%
50%
60%
70%
80%
90%
100%
60 65 70 75 80 85 90
% RH
%RH vs. Temp °F

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2.3 Marking
The following marking can be found on the instrument:
[Esc] Name in brackets of the keyboard key to press
An applied part that includes a patient connection that is intended to deliver electrical energy
or an electrophysiological signal to or from the patient shall be a Type BF part. An EOG
amplifier is considered a Type BF part.
An applied part that includes a patient connection which can be disconnected from the patient
immediately is a Type B part. The [Subject] is a Type B part.
Refer to the Instructions for Use
Observe precautions for handling electrostatic sensitive devices
It is against the law to dispose of electronic devices in the trash. The crossed-out wheelie bin
symbol shows that the components cannot simply be tossed into the trash but must be
recycled or disposed in accordance to local environmental regulations.
Chinese RoHS compliance standard where the product contains less than the maximum
concentration value of lead, mercury, cadmium, hexavalent chromium, polybrominated
biphenyls, and polybrominated diphenyl ethers.
Electrical ground
ETL 5003648 - This device has met Electronic Testing Laboratories standards
0123
The CE-mark indicates that the manufacturer meets the requirements of Annex II of the
Medical Device Directive 93/42/EEC for the quality system.
Medical Device

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2.4 Panel connections
Figure 1Front Panel Diagram
A Specifies Warm Irrigation to be performed / returns to standby state
B Specifies Cool Irrigation to be performed / returns to standby state
C Adjust temperature set point up 1°C
D Adjust temperature set point down 1°C
E Hose connection
F Handle support
G LCD output screen
Figure 2Rear Panel Diagram
A Exhaust fan F Serial Number
B Air Inlet Filter G Fuses
C USB B Connector H Ground Screw
D Power Switch I AC Input
E Fill / Drain Valve J Fill / Drain Water Outlet
A C
G
B D
E
F
A B C
D
E F
G
H
I
J

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2.5 Preparing the irrigator for first use
The Air Fx is ventilated by a fan at the back of the device. Do not place the Air Fx near a radiator or other
heating source. Provide at least 10 cm (4 in) of free space behind the unit to provide adequate circulation.
Filling the water reservoir
The Air Fx will be shipped from Interacoustics without any distilled or demineralized water in the reservoir.
Please fill according to the following instructions.
The Air Fx cannot be used without adequate distilled or demineralized water
present in the water reservoir. The distilled or demineralized water must be
added before applying power. Failure to maintain the proper level of fresh
distilled or demineralized water can result in permanent damage to the unit.
1. Check that the irrigator is powered OFF.
2. Remove the cap to the water reservoir on the top of the irrigator. Do not force the cap or use mechanical
tools to remove the cap.
3. Fill the reservoir with distilled water up to 1cm from the bottom of the cap. Take care not to spill any
water into the unit except into the water reservoir to prevent damage to the circuitry and prevent any
electrical shock to the user. If any water is spilled, wipe it up immediately.
4. Purge air from the hoses, pump and handle by connecting the included 60cc syringe & tube to the Fill /
Drain Water Outlet. Fully push the tube into the Fill / Drain Water push-in connector (about 1” (2cm) of
tubing). Gently pull on the tubing to confirm the tube is secure.
5. Switch the Fill / Drain Valve to the Fill / Drain position.
6. Draw back the syringe to draw the air out of the internal tubing and draw distilled water into the syringe.
If there is a train of air bubbles or there is no suction, then set the Fill / Drain Valve to the Run position
and reconnect the tube. Once reconnected, set the Fill / Drain Valve to the Fill / Drain position.
7. Disconnect the syringe from the tube and keep the tube held above the irrigator to prevent the water
from exiting the tube. Squirt any distilled water drawn back into the reservoir. Reconnect the syringe to
the tube.
8. Repeat steps 6 to 7 two more times to draw the remaining air out of the lines.
9. Set the Fill / Drain Valve to the Run position.
10. Disconnect the syringe. The tube can be removed by pushing on the sides of the tubing connector’s grey
collar around the tubing while simultaneously pulling on the tubing.
11. Place the cap back on the water reservoir.
12. Attach the AC power cord to the back of the irrigator and switch on the Air Fx using the power switch
next to the power cord. Water will automatically be pumped through the hoses into the handle and
returned to the reservoir.
13. Test system by running irrigator on the warm cycle then the cool cycle. If the irrigator is able to do this,
then it is ready to use. If the irrigator is unable to reach the desired temperature, then repeat the fill
instructions.

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3Operating instructions
3.1 Maintain distilled water level
Prior to testing, verify fresh distilled or demineralized water level is visible in the water reservoir above
the top of the irrigator case. If the water level is too low, then remove the cap to the water reservoir and
add distilled or demineralized water up to 1cm from the threads as shown by the label. Replace the cap
back on the water reservoir to prevent evaporation.
3.2 Using the Air Fx with VNG/ENG software
The Air Fx air irrigator can be configured with compatible1VNG/ENG software. The caloric test settings or
system settings must be configured to communicate with the Air Fx irrigator. When the caloric test is
prepared, the irrigator will prepare the irrigator for a warm or cool irrigation based on the test selected.
The test will not be able to start until the irrigator has reached the desired temperature. The VNG/ENG
software will reflect the status of the irrigator as the irrigator prepares for the desired irrigation.
3.3 Turn on the irrigator
Turn on the power switch on the back panel. The Air Fx will initialize, show the firmware version, and then
go into the standby state.
Select Cool / Warm
Air Fx v1. 4
3.4 Attaching the speculum
A speculum on the tip of the otoscope head is required for use. Interacoustics recommends the use of 2.
75mm diameter specula for irrigation and the 4. 25mm diameter specula for inspecting the ear canal for
cerumen impaction or perforations in the tympanic membrane.
If the ear canal is blocked with wax, remove the cerumen first before
irrigating. Irrigating a patient with cerumen impaction will give a reduced
response to the irrigation stimulus.
To assemble a speculum on the ear tip of the handle, insert the speculum on the tip of the otoscope and
turn it clockwise about 45°. A small plastic tip will be locked in the metal part of the head and will fix the
speculum on the handle. Pull gently on the speculum to verify it is secure.
1Compatible VNG/ENG software includes Spectrum, VN415, VO425, VisualEyes 515, and VisualEyes
525.
NOTICE
DO NOT USE tap water as minerals in water will be deposited on critical internal
components and will cause damage that is not covered by warranty.
NOTICE
Each speculum is single use only and must be replaced for each new
patient.

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Figure 3 Place Speculum on Otoscope Head
Figure 4 Turn Speculum Clockwise to Lock, Pull Gently on
Speculum to Verify It’s Secure
Specula are latex free and silicone free. Do not put too much torque on the speculum or the plastic nub
on the inside of the speculum will break, preventing the speculum from securing to the handle. Once this
tip is broken, the speculum cannot be secured again on the handle. The speculum can be removed from
the handle by first turning the speculum counterclockwise to unlock. The speculum must be tight to
prevent air leaks that will reduce the caloric stimulation response.
3.5 Select the irrigation temperature
If the Air Fx is used as a standalone device, press the Cool or Warm button on the front panel to select
the irrigation temperature. If the Air Fx is connected to a VNG/ENG system with compatible software, then
the software will select the irrigation temperature based on the test or system settings.
NOTICE: If the irrigator system is used along with VNG/ENG software, refer to the respective software
user manual for computer specification and supported operating system related information.
The irrigator front panel LCD display will show the irrigation method (Cool or Warm) followed by the
desired irrigation temperature (24°C) and the current temperature (e. g. 23. 4°C).
Cool:
24°C
23. 4°C
Irrigation will be available after the desired temperature has been reached and stabilized. Once this
occurs, the Air Fx will emit an indicator tone and will display “Ready” below the irrigation information.
Cool:
24°C
24. 2°C
Ready
3.6 Perform the irrigation
An audiologist or physician should inspect the patient’s ear with an otoscope
prior to testing, looking for infection, open wounds, wax impaction, or a
perforated eardrum. If any of these are observed, DO NOT proceed with
irrigation using the Air Fx irrigator.
Prior to irrigation, the patient should be supine with the head elevated 30 degrees to place the lateral
semi-circular canals in the vertical plane. The operator should sit next to the patient alongside the ear
being irrigated. Hold the irrigator handle in one hand and instruct the patient what will occur and what the
patient will feel. Insert the otoscope with the 2. 75mm diameter speculum into the patient’s ear while
peering through the otoscope magnifying lens. Adjust the direction of the speculum looking for the
tympanic membrane (TM). Direct the air stream continuously at the TM during the whole irrigation. Press
the white push button on the irrigator handle to start the countdown timer. If connected to the computer
with compatible VNG/ENG software, the test will begin recording as well. During irrigation the LCD
display will display “Irrigating” and the amount of time that has elapsed. To restart the test hold down on
the white button for 3 seconds and the timer will reset and abort the VNG/ENG tracing.

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Cool:
24°C
24. 1°C
Irrigating
0:08
NOTICE
The patient's perceived spinning sensation experienced during caloric irrigation is
the desired result of stimulating a functional ear with a caloric irrigator. The
clinician should remain at the patient's side to calm and reassure the patient that
the spinning will pass in a minute or so. Nausea is an undesirable side effect
which is temporary and not experienced by every patient. If the patient becomes
nauseated, discontinue testing until the nausea has passed. Be prepared to
provide the patient with an emesis basin. Stop all caloric testing for that visit if the
patient vomits.
3.7 Safety
The Air Fx air irrigator uses distilled or demineralized water to maintain the temperature in the cooler /
heater element. While the temperature of the coolant is not displayed, it is monitored. If the coolant
temperature goes over a certain limit, the unit will stop operation and an “Over Temp Error” message is
displayed. This error could be a result of insufficient water in the water reservoir or bubbles in the water
line. Operating the irrigator in very cold (<10°C conditions can also cause this error). Make sure the
irrigator has warmed up slowly to room temperature before operating.
Over Temp Error
Call TechSupport
The air delivery temperature is also monitored for safety. If this temperature exceeds 50°C, the irrigator
will stop operation and an “Air Temp Error” message will be displayed.
Air Temp Error
Call TechSupport
If either of these conditions occurs, then shut down the irrigator and isolate the problem (ambient
temperature too low, bubbles in the water line, distilled or demineralized water level too low etc. ).
Contact Interacoustics’ Service Department or the local service representative if the problem cannot be
resolved.
Set the Air Fx irrigator near the edge of the table or cart in order for the hose to hang down, allowing the
handle to rest properly in its cradle. When the irrigator is not in use, coil the Air Fx handle tubing using the
hose management tape while still allowing the handle to be secured in the cradle.
3.8 Turn off the irrigator
The Air Fx will go into standby mode after ten minutes has elapsed or the irrigation temperature selection
button is pressed twice. If the Air Fx is used in conjunction with the compatible VNG/ENG software, then
the software will send the Air Fx into standby mode at the end of the test. When the Air Fx is in the
standby mode, it is safe to turn off the power switch on the back panel.
3.9 Draining the water reservoir
The Air Fx should have the water reservoir on the top of the irrigator filled with distilled or demineralized
water. If the distilled or demineralized water needs to be drained prior to shipment or flushed before
adding new distilled or demineralized water, then the Air Fx should be drained according to the
following instructions. Do not store irrigator in a location below 0°C (32°F).
1. Remove the water reservoir cap on the top of the irrigator.
2. Connect the supplied plastic syringe and tubing to the Fill / Drain Water Outlet on the back of the
irrigator. Push the syringe plastic tubing fully into the Fill / Drain Water Outlet connector, and then
gently pull on the tubing to verify the connection is secure and will not leak.
3. Switch the Fill / Drain Valve to the Fill / Drain position.

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4. Draw back the syringe to draw the distilled or demineralized water out of the internal tubing and
water reservoir.
5. Disconnect the syringe from the tubing and keep the tube held above the irrigator to prevent the water
from exiting the tube. Squirt any distilled or demineralized water into a waste container. Reconnect
the syringe to the tube. Repeat this process until all of the distilled or demineralized water is
removed from the internal lines, until only air is drawn into the syringe.
6. Set the Fill / Drain Valve to the Run position.
7. Disconnect the syringe and tubing. The tubing can be removed by pushing in the gray gasket around
the tubing with one’s finger nails while pulling on the tubing to remove.
8. Replace the cap back on the water reservoir.

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4Maintenance
4.1 General cleaning procedure
4.1.1 General Precautions
•Before cleaning always switch off and disconnect from the power supply
•Do not autoclave, sterilize, or immerse the instrument or accessory in any fluid
•Do not use hard or pointed objects to clean any part of the instrument or accessory
•Do not let parts that have been in contact with fluids dry before cleaning
•Disinfectant. The use of organic solvents and aromatic oils must be avoided.
•Ensure that isopropyl alcohol does not have contact with, any screens on the instruments
•Ensure that isopropyl alcohol does not have contact with, any silicone tubes or rubber parts
•To prevent a degradation of the material by the Isopropanol it is recommended to irrigate the
water system with distilled water after disinfecting with 70-85% v/v Isopropyl alcohol.
•It is recommended that the operator use gloves during the operation of the Air Fx Caloric Irrigator
and the accessories. The gloves are to be changed after each patient, to minimize the contact
points and cross contamination.
•Single use components should be replaced after every patient use to avoid potential cross
contamination from patient to patient.
4.1.2 Recommended cleaning agent and frequency
The Air Fx caloric irrigator and the temperature-controlled air is intended for contact with intact skin only.
According to the Spaulding classification used by WHO1, it is therefore regarded a non-critical low risk
product in regard to contamination control. The WHO’s recommended level of decontamination for non-
critical devices is cleaning. Disinfection and sterilization are not recommended. However, in case of an
epidemic outbreak, disinfection of the system can be performed.
1. WHO "Decontamination and Reprocessing of Medical Devices for Health-care Facilities"
Cleaning Agent
The Air Fx Caloric Irrigator is recommended to undergo the regular cleaning procedure with appropriate
cleaning agent. The cleaning agent must be able to remove any foreign material (e. g. , soil, organic, in-
organic, and microbial contaminants) from the system. It is recommended to use nonabrasive cleaning
solution like pH neutral detergent as cleaning agent.
Disinfectant
Though the Air Fx Caloric Irrigator is categorized as non-critical device, it is also recommended to
disinfect the system on a regular interval with an appropriate disinfectant to reduce biofilm development.
It is recommended to use 70-85% v/v Isopropyl alcohol as disinfectant agent for the Air Fx Caloric
Irrigator which is also approved by WHOError! Bookmark not defined.1as standard disinfectant agent. Isopropyl
alcohol 70-85% v/v will also have a mild effect on the materials.
Frequency
The minimum requirement for cleaning and disinfection frequencies are discussed below in detail.
However, the user can decide to improve their cleaning standards with additional cleaning/disinfection
especially during any epidemic outbreaks as per local clinic standards & requirements and WHO
recommendations.
4.2 After each patient
After each examination of a patient, it should be ensured that there is no contamination on the parts in
connection with the patient. Wipe the outside of the otoscope head and replace the single use speculum
after each patient.

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4.3 Daily
External surface of the device which is generally used by the healthcare professional is to be cleaned
daily with recommended cleaning solution (refer section 4. 1. 2).
Cleaning procedure: Wipe off the external surface with a disposable, clean, non-linting cloth which is
damped in the cleaning solution until all visible soil is removed. Ensure that moisture doen’t enter the
critical areas of device. Cleaning solution should be changed at each cleaning session and when visibly
soiled.
4.4 Quarterly maintenance
Drain the water completely from the irrigator. Remove the lid from the water tank and use a paper towel to
reach inside and wipe down the inside wall of the water reservoir which is used for heat management. If
the paper towel does not show a biofilm, then refill the reservoir with distilled or demineralized water for
routine usage of irrigators
If the biofilm is observed, fill the water reservoir of irrigator with the disinfectant (70-85% v/v Isopropyl
alcohol). Power on the irrigator for 30 minutes with cool Irrigation. The water pump will circulate the
disinfectant through the lines as long as power is on. After 30 minutes, drain the solution from the
irrigator. Then, fill the irrigator with distilled or demineralized water and run couple of cool irrigation
cycles. Drain the irrigator to ensure that the disinfectant is washed out. Then refill the reservoir with
distilled or demineralized water for routine usage of irrigator.
4.5 Annual maintenance
The Annual Cleaning Procedure should be performed by a qualified service technician.
4.5.1 Air filter cleaning
Check the exhaust fan filter for debris or dust. The filter can be removed and cleaned after turning off
power to the irrigator and detaching the plastic retaining bracket on the exhaust fan.
Check the air inlet filter for debris or dust. Remove the grommet and tubing using a pair of needle-nosed
pliers. Blow out debris with a can of compressed air.
4.5.2 Water filter cleaning
The Air Fx caloric irrigator uses an inline water filter to collect debris. The water filter cone should be
replaced once a year by a qualified service technician. Refer to the section 4. 6 Replacing the Water
Filter.
4.5.3 Irrigator cleaning
Annually the Air Fx should be cleaned to remove any biofilm and mineral deposits. The Annual Cleaning
Procedure should be performed by a qualified service technician.
4.6 Annual irrigator verification
The Air Fx flow rate and air temperature should be verified by a qualified service technician. If the irrigator
is outside of specifications for flow rate or temperature, then the irrigator must be sent back to
Interacoustics for calibration.

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4.7 Warranty and service
4.7.1 Product warranty
Interacoustics warrants that:
•The Air Fx system is free from defects in material and workmanship under normal use and
service for a period of 12 months from the date of delivery by Interacoustics to the first
purchaser
•Accessories are free from defects in material and workmanship under normal use and service for
a period of ninety (90) days from the date of delivery by Interacoustics to the first purchaser
If any component requires service during the applicable warranty period, the purchaser should
communicate directly to the local distributor to determine the appropriate repair facility. Repair or
replacement will be carried out at Interacoustics’ expense, subject to the terms of this warranty. The
product requiring service should be returned promptly with proper packing, and postage prepaid. Loss or
damage in return shipment to Interacoustics shall be at purchaser's risk. In no event shall Interacoustics
be liable for any incidental, indirect or consequential damages in connection with the purchase or use of
any Interacoustics product. This shall apply solely to the original purchaser.
This warranty shall not apply to any subsequent owner or holder of the product. Furthermore, this
warranty shall not apply to, and Interacoustics shall not be responsible for, any loss arising in connection
with the purchase or use of any Interacoustics product that has been:
•repaired by anyone other than an authorized Interacoustics service representative;
•altered in any way so as, in Interacoustics judgement, to affect its stability or reliability;
•subject to misuse or negligence or accident, or which has had the serial or lot number altered,
effaced or removed; or
•improperly maintained or used in any manner other than in accordance with the instructions
furnished by Interacoustics.
This warranty is in lieu of all other warranties, express or implied, and of all other obligations or liabilities
of Interacoustics. Directly or indirectly, Interacoustics does not give/grant the authority to any
representative or other person to assume on behalf of Interacoustics for any other liability in connection
with the sale of Interacoustics products.
INTERACOUSTICS DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
ANY WARRANTY OF MERCHANTABILITY OR FOR FUNCTION OF FITNESS FOR A PARTICULAR
PURPOSE OR APPLICATION.
4.7.2 Concerning product repair / service
Interacoustics is responsible for the validity of the CE marking, effects on safety, reliability and
performance of the equipment if:
• Assembly operations, extensions, readjustments, modifications or repairs are carried out by
authorized persons
• A 1-year service interval is maintained
• The electrical installation of the relevant room complies with the appropriate requirements, and
• The equipment is used by authorized personnel in accordance with the documentation supplied
by Interacoustics
The customer shall reach out to the local distributor to determine the service/repair possibilities including
onsite service/repair. It is important that the customer (through local distributor) fills out the RETURN
REPORT every time when the component/product is sent for service/repair to Interacoustics.

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4.8 Component disposal
NOTICE
In case of a conflict, all information contained herein is superseded by
National, State or Local regulations. If there is any question, contact the local
area authorities for compliance.
Packing material
If storage space allows, packing material for computers, printers and digital light bars should be retained.
This original packing material affords the maximum protection in case any of these items must be
returned for service. All cardboard or paper should be recycled with a local disposal company if possible.
If storage space for the foam packaging material is not available, visit the Alliance of Foam Packaging
Recyclers website, http://www. epspackaging. org/, for suggestions and locations for recycling.
Electronic parts
Some electronic parts can be recycled. The following web site lists the states within the USA and
identifies their programs: http://www. nrc-recycle. org/resources/electronics/policy. htm.
Disposal of product
It is illegal to dispose electric and electronic waste as unsorted municipal waste. Electric
and electronic waste may contain hazardous substances and therefore has to be
collected separately. Such products will be marked with the crossed-out wheeled bin
shown below. The cooperation of the user is important in order to ensure a high level of
reuse and recycling of electric and electronic waste. Failing to recycle such waste
products in an appropriate way may endanger the environment and consequently the
health of human beings.
4.9 Malfunction
In the event of a product malfunction, it is important to protect patients, users, and other persons against
harm. Therefore, if the product has caused, or potentially could cause such harm, it must be quarantined
immediately.
Both harmful and harmless malfunctions, related to the product itself or to its use, must immediately be
reported to the distributor where the product was acquired. Please remember to include as many details
as possible e. g. the type of harm, serial number of the product, software version, connected accessories
and any other relevant information.
In case of death or serious incident in relation to the use of the device, the incident must immediately be
reported to Interacoustics and the local national competent authority.

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5General technical specifications
5.1 Device specifications
Output Air Flow Rate: 8 to 12 liters/minute (fixed flow rate)
Output Air Temperature: Cool 20°C to 30°C (1°C increments)
Warm 40°C to 50°C (1°C ncrements)
Accuracy: +/- 0. 5°C
Stability: +/- 0. 5°C, +/- 0. 5 liters/min
Time to temperature: < 3 minutes
Distilled water: 220cc (7. 4 oz)
Otoscope speculums: 2. 75 mm and 4. 25mm (single use)
Computer connection: USB 1. 1 or faster, 3 m (9. 8 ft) cable
Case dimensions: 35W x 32D x 22H cm (13. 8 x 12. 6 x 8. 7 in)
Air hose length: 3 m (9. 8 ft)
Weight: 8 kg (18 lb)
Voltage: 110-130 VAC @ 50-60 Hz
220-240 VAC @ 50-60 Hz
Fuses (2 each): 110VAC units: T2AL 250V
220VAC units: T1AL 250V
Power consumed: 105VA
The CE-mark indicates that Interacoustics A/S meets the requirements of Annex II of the Medical Device
Directive 93/42/EEC.
Approval of the quality system is made by TÜV – identification no0123
The DEVICE is an active, diagnostic medical product according to the class IIa of the EU medical
directive 93/42/EEC.
Compliance
Standards: IEC 60601-1:2005 + AMD1:2012- Basic safety & Essential Performance
IEC 60601-1-2:2012 - EMC