ResMed

VPAP III ST A User Manual May 2011

User Manual

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File Name: vpap_iii_st_a_user_manual.pdf

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248139/3 05 11 VPAP III ST-A USER ROW ENG

Global leaders in sleep and respiratory medicine

www.resmed.com

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B HUMIDIFIERS

E HUMIDAIRE 2i AND VPAP III ST-A

SETTING UP THE VPAP III ST-A

VPAP™ III ST-A Illustrations

Component of 248139/3

SYSTEM COMPONENTS

HumidAire 2i™

Docking station

HumidAire 2iC™

Handle

LCD screen Control panel Removable front cover

Air outlet

HumidAire™

ResMed Passover

Air filter cover Power switch Serial communications port (9-pin)

Power sockets

Auxiliary port (15-pin)

F HUMIDAIRE 2iC AND VPAP III ST-A

C OTHER ACCESSORIES

52 cm

Water chamber

Docking station

VPAP™ III ST-A User Manual English

248139/3 05 11

Manufactured by: ResMed Ltd 1 Elizabeth MacArthur Drive Bella Vista NSW 2153 Australia Tel: +61 (2) 8884 1000 or 1 800 658 189 (toll free) Fax: +61 (2) 8883 3114 Email: [email protected]

Distributed by: ResMed Corp 14040 Danielson Street Poway CA 92064-6857 USA Tel: +1 (858) 746-2400 or 1-800-424-0737 (toll free) Fax: +1 (858) 746-2900 Email: [email protected] ResMed (UK) Limited 65 Milton Park Abingdon Oxfordshire OX14 4RX UK Tel: +44 (1235) 862 997 Fax: +44 (1235) 831 336 Email: [email protected] ResMed Asia Pacific Ltd 97 Waterloo Road North Ryde NSW 2113 Australia Tel: +61 (2) 9886 5000 or 1 800 658 189 (toll free) Fax: +61 (2) 9878 0120 Email: [email protected] ResMed Austria GmbH Purtscherstraße 18, 9500 Villach Österreich Tel: 43 (4242) 430 830 Fax: +43 (4242) 430 830-4 Email: [email protected] ResMed BV Nieuwe Parklaan 86, 2587 BV Den Haag Nederland Tél: +31 (70) 358 6263 Fax: +31 (70) 358 4333 Email: [email protected] ResMed Finland Oy Eteläinen Salmitie 2 Masala 02430 Suomi Puh: +358 9 8676820 Faksi: +358 9 86768222 Sähköposti: [email protected] ResMed GmbH & Co. KG Fraunhoferstraße 16, 82152 Martinsried Deutschland Tel: +49 (0) 89/99 01-00 oder +49 (0) 800 2 777 000 (gebührenfrei) Fax: +49 (0) 89/99 01-10 55 Email: [email protected] ResMed Hong Kong Limited Room 1714, Miramar Tower 132-134 Nathan Road Tsim Sha Tsui Hong Kong Tel: +852 2366 0707 Fax: +852 2366 4546 Email: [email protected] ResMed Japan 17F, Fukokuseimei Building, 2-2-2, Uchisaiwai-cho, Chiyoda-ku Tokyo 100-0011 Japan Tel: +81 (3) 3592 9555 Fax: +81 (3) 3592 9555 ResMed Malaysia Sdn Bhd Suite E-10-20, Plaza Mon’t Kiara No. 2 Jalan 1/70C Mon’t Kiara 50480 Kuala Lumpur Malaysia Tel: +60 3 6201 7177 Fax: +60 3 6201 2177 Email: [email protected] ResMed Middle East 66 Ahmed Shawki St. Mostafa Kamel, Alexandria 21111 Egypt Tel: +20 3 546 8825 Fax: +20 3 544 6984 ResMed NZ Ltd PO Box 51-048 Pakuranga Auckland New Zealand Tel:+64 274 737 633 Fax:+64 9 239 0193 Email: [email protected] ResMed SA Parc de la Bandonnière 2, rue Maurice Audibert 69800 Saint-Priest France Tél. : +33 (0) 4 37 251 251 Fax : +33 (0) 4 37 251 260 Email: [email protected] ResMed Schweiz Thannerstrasse 57 CH-4054 Basel Schweiz Tel: +41 (061) 307 9711 Fax: +41 (061) 307 9722 Email: [email protected] ResMed Singapore Pte Ltd 238A Thomson Road #12-03/04, Novena Square, Tower A Singapore 307684 Tel: +65 6284 7177 Fax: +65 6284 7787 Email: [email protected] ResMed Spain SL C/Arturo Soria, 245 28033 Madrid España Tel: +34 (93) 5908154 Fax: +34 (93) 5908153 Email:[email protected] ResMed Sweden AB Industrigatan 2 S-461 37 Trollhättan Sverige Tel: +46 520 420 110 Fax: +46 520 397 15 Email: [email protected] US DESIGNATED AGENT: ResMed Corp EU AUTHORIZED REPRESENTATIVE: ResMed (UK) Ltd Internet: www.resmed.com Protected by patents: AU 697652, AU 699726, AU 713679, EP 0661071, EP 0858352, US 4944310, US 5199424, US 5522382, US 6213119, US 6240921, US 6705315. Other patents pending. Protected by design registrations: AU 147283, AU 147335, AU 147336, CH 128.709, CH 128.710, CH 128.711, CH 128.712, DE 40201723, DE 40202007, DE 40202008, DE 40202020, ES 153514, ES 153515, ES 153516, ES 153518, ES 156135, ES 156136, FR 02 1407, GB 3001791, GB 3001819, GB 3001820, GB 3001821, JP 1164087, JP 1164265, JP 1164266, JP 1164267, JP 3638613, SE 75598, SE 75599, SE 75600, SE 75715, US D467335, US D468011, US D476077, US D477868, US D487311, US D503796. Other designs pending. VPAP, Activa, HumidAire, HumidAire 2i, Mirage, SmartStart, Smart Data, Swift, Ultra Mirage and Vista are trademarks of ResMed Ltd, and VPAP, Activa, HumidAire, HumidAire 2i, Mirage, SmartStart, Ultra Mirage and Vista are registered in U.S. Patent and Trademark Office. © 2005 ResMed Ltd.

Contents Introduction... 1 User/Owner Responsibility

Medical Information... 1 What the VPAP III ST-A is Intended for Contraindications Warnings Cautions Adverse Effects

1 1 2 2 3

The VPAP III ST-A System... 5 Masks Humidifiers Accessories

5 6 6

Setting up the VPAP III ST-A System... 7 Setting up the VPAP III ST-A Attaching a Humidifier Using the LCD Screen and Keypad

7 8 10

Starting Treatment... 13 Stopping Treatment Using the HumidAire 2i Warm-up Feature Using the Mask-Fitting Feature

14 14 14

Cleaning and Maintenance... 17 Daily Cleaning Weekly Cleaning Periodic Cleaning Testing the Alarm Replacing the Air Filter Servicing

17 17 17 18 18 18

How to Use the VPAP III ST-A Menus... 19 Ramp Screen How to Use the Standard Menu How to Use the Detailed Menu (if enabled by your clinician) Menu Functions (Detailed Menu only) Treatment Screens Non-vented Mask Alarm Screen

19 19 20 22 25 27

The Alarms... 29 Alarms Troubleshooting

Helpful Hints... 33 Troubleshooting... 35 Contents

iii

System Specifications... 37 Limited Warranty... 45 Index... 47

Introduction The VPAP™ III ST-A is a bilevel pressure support ventilator specifically designed for non-invasive mask ventilation. This user manual contains the information you need for the correct use of your VPAP III ST-A.

User/Owner Responsibility The user or owner of this system shall have sole responsibility and liability for any injury to persons or damage to property resulting from: • operation which is not in accordance with the operating instructions supplied • maintenance or modifications carried out unless in accordance with authorized instructions and by authorized persons. Please read this manual carefully before use. This manual contains special terms and icons that appear in the margins to draw your attention to specific and important information. • Warning alerts you to possible injury. • Caution explains special measures for the safe and effective use of the device. • Note is an informative or helpful note.

Medical Information What the VPAP III ST-A is Intended for The VPAP III ST-A system is intended to provide non-invasive ventilation for patients with respiratory insufficiency or obstructive sleep apnea (OSA), in the hospital or home.

Contraindications The VPAP III ST-A should not be used if you have an insufficient respiratory drive to endure brief interruptions in non-invasive ventilation therapy. The VPAP III ST-A is not a life support ventilator and may stop operating with power failure or in the unlikely event of certain fault conditions. If you have any of the following conditions, tell your doctor before using the VPAP III ST-A: • acute sinusitis or otitis media • epistaxis causing a risk of pulmonary aspiration • conditions predisposing to a risk of aspiration of gastric contents • impaired ability to clear secretions

Introduction

hypotension or significant intravascular volume depletion pneumothorax or pneumomediastinum • recent cranial trauma or surgery. • •

Warnings • • •

•

• •

• • •

• •

The entire manual should be read before using the VPAP III ST-A. Advice contained in this manual should not supersede instructions given by the prescribing physician. The VPAP III ST-A should be used with masks and accessories recommended by ResMed or the prescribing physician. Use of incorrect masks and accessories may adversely affect the function of the VPAP III ST-A. The VPAP III ST-A is designed for use with masks that allow exhaled gases to be flushed out through vent holes. Exhaled gases will be rebreathed if the mask is worn with the machine turned off, or the vent holes are occluded. If this occurs over prolonged periods, suffocation may occur. In the event of power failure or machine malfunction, remove the mask. The VPAP III ST-A can be set to deliver pressures up to 30 cm H2O. In the unlikely event of certain fault conditions, pressures up to 40 cm H2O are possible. The VPAP III ST-A is not suitable for use in the vicinity of flammable anesthetics. The VPAP III ST-A should not be used with anesthetized patients, whose breathing depends entirely on mechanical ventilation. If oxygen is used with the VPAP III ST-A, the oxygen flow should be stopped when the device is not operating. If oxygen flow continues when the device is not operating, oxygen may accumulate within the device and create a risk of fire. Do not use the VPAP III ST-A if there are obvious external defects, unexplained changes in performance or unusual noises. Do not open the VPAP III ST-A case. There are no user serviceable parts inside. Repairs and internal servicing should only be performed by an authorized service agent.

Cautions At low EPAP pressures, the flow through the mask vent holes may be inadequate to clear all exhaled gases, and some rebreathing may occur. o • The air flow for breathing produced by this device can be as much as 6 C higher than the temperature of the room. Caution should be exercised if the o room temperature is warmer than 32 C. •

Note: The above are general warnings and cautions. Further specific warnings, cautions and notes appear next to the relevant instructions in the manual.

Adverse Effects You should report unusual chest pain, severe headache or increased breathlessness to your physician. An acute upper respiratory tract infection may require temporary discontinuation of treatment. The following side effects may arise during the course of therapy with the VPAP III ST-A: • drying of the nose, mouth or throat • bloating • ear or sinus discomfort • eye irritation • mask-related skin irritations • chest discomfort.

Medical Information

The VPAP III ST-A System Please refer to the illustrations in section A of the illustration sheet. Please identify and familiarize yourself with the following components of the VPAP III ST-A: • VPAP III ST-A front view (A-1) • VPAP III ST-A rear view (A-2) • Power cord (A-3) • Carry bag (A-4) • 2 m air tubing (A-5).

WARNING Do not connect any device to the auxiliary port. Although your health care provider may connect specially designed devices to the auxiliary port of the VPAP III ST-A, connection of other devices could result in injury, or damage to the unit. • In the home environment, the only device that may be connected to the communications port is a modem that is locally approved. Locally approved modems may also be connected in the clinical environment. • In the clinical environment any PC that is used with the VPAP III ST-A system must be at least 1.5 m away from, or at least 2.5 m above the patient. It must also comply with IEC 60950 or equivalent. •

Masks You will also need a ResMed mask system (supplied separately). The following ResMed mask systems are recommended for use with the VPAP III ST-A:

Nasal Masks Ultra Mirage™ Nasal Mask Mirage™ Nasal Mask • Mirage Activa™ Nasal Mask • Mirage Vista™ Nasal Mask • Modular Nasal Mask. • •

Nasal Pillows Systems •

Mirage Swift™ Nasal Pillows System.

Full Face Masks Mirage™ Full Face Mask Mirage™ Full Face Mask Series 2 • Ultra Mirage™ Full Face Mask. • •

To select the appropriate setting for your mask, see “Settings for Mask Types” on page 23.

The VPAP III ST-A System

Notes: • ResMed VPAP III ST-A has been designed and manufactured to provide optimum performance using ResMed vented mask systems. While other vented mask systems may be used, performance and data outputs may be affected. • Not all masks are available in all regions.

Humidifiers Please refer to the illustrations in section B of the illustration sheet. A humidifier may be required if you are experiencing dryness of the nose, throat or mouth. The VPAP III ST-A is compatible for use with the following humidifiers: • HumidAire 2i™ heated humidifier (B-1) • HumidAire 2iC™ passover humidifier (B-2) • HumidAire™ heated humidifier (B-3) • ResMed Passover humidifier (B-4).

WARNING Only the HumidAire 2i, HumidAire 2iC, HumidAire heated humidifier and the ResMed Passover are compatible for use with the VPAP III ST-A. Please refer to Warnings on page 2.

Accessories Please refer to the illustrations in section C of the illustration sheet. The following accessories may be purchased separately: • 3 m air tubing (C-1) • Medium (52 cm) air tubing for the HumidAire and ResMed Passover humidifiers (C-2) • Hypoallergenic air filter. Note: ResMed regularly releases new products. Please check our website at www.resmed.com.

Setting up the VPAP III ST-A System Please refer to the illustrations in section D of the illustration sheet.

Setting up the VPAP III ST-A 1 Place the VPAP III ST-A on a flat surface near the head of your bed. If the device is placed on the floor, ensure that the area is free from dust and clear of bedding, clothes or any other objects that could block the air inlet.

CAUTION Be careful not to place the device where it can be bumped or where someone is likely to trip over the power cord.

2 Connect the power cord There are two sockets at the rear of the flow generator-the top one for an AC (standard mains electricity) and the lower one for a DC power cord (see “Using a Battery to Power the VPAP III ST-A” on page 33). ResMed recommends using the AC power cord supplied with the unit. If the customized ResMed power cord is supplied, it can be held in place with the locking clips. To insert the locking clip, pinch the free ends together and fit the pins into the holes on both sides of the socket. Insert the power cord into the socket. Push the locking clip down so that the groove holds the power cord in place. Power switch AC locking clip

AC power cord

Plug the free end of the power cord into a power outlet (D-1).

CAUTION Do not connect both AC and DC power cords to the VPAP III ST-A at the same time.

Setting up the VPAP III ST-A System

WARNING Make sure the power cord and plug are in good condition and the equipment is not damaged. • The air filter cover protects the device in the event of accidental liquid spillage onto the device. Ensure that the air filter and air filter cover are fitted at all times. •

3 Connect one end of the air tubing firmly onto the air outlet of the VPAP III ST-A (D-2).

WARNING Only ResMed air tubing should be used with your flow generator. A different type of air tubing may alter the pressure you actually receive and reduce the effectiveness of your treatment.

4 Assemble your mask system according to the mask user instructions. 5 Connect your mask system to the free end of the air tubing (D-3). The VPAP III ST-A system is now assembled (D-4). To start treatment, see “Starting Treatment” on page 13.

Attaching a Humidifier !

WARNING When using a humidifier, position it lower than you, and at the same level or lower than the VPAP III ST-A. Note: You must activate the humidifier option in the menus if you are using a HumidAire or Passover humidifier.

Attaching a HumidAire 2i Humidifier Please refer to the illustrations in section E of the illustration sheet. The HumidAire 2i attaches to the front of the VPAP III ST-A to provide heated humidification. No other accessories are required for its use. The VPAP III ST-A automatically detects the presence of the HumidAire 2i. No menu changes are required. Please refer to the HumidAire 2i User’s Manual for details.

Attaching a HumidAire 2iC Humidifier Please refer to the illustrations in section F of the illustration sheet. The HumidAire 2iC attaches to the front of a VPAP III ST-A to provide passover humidification. No other accessories are required for its use. Please refer to the HumidAire 2iC User’s Manual for details.

Attaching a HumidAire Humidifier Please refer to the illustrations in section G of the illustration sheet. Medium size (52 cm) air tubing is a necessary accessory for connecting the VPAP III ST-A to the HumidAire humidifier.

To set up the VPAP III ST-A with the HumidAire: 1. Fill the HumidAire with water as described in the humidifier manual. 2. Place the filled water chamber inside the HumidAire. Connect the medium (52 cm) air tubing to the right connector port, and the long air tubing (2 m or 3 m) to the left connector port on the humidifier (G-1). Close the HumidAire lid. 3. Place the VPAP III ST-A on top of the HumidAire (G-2). Do not place the VPAP III ST-A underneath the humidifier. (This is to avoid water spilling into the device.) 4. Connect the free end of the medium air tubing to the air outlet of the VPAP III ST-A (G-3). 5. Connect the mask system to the free end of the long air tubing. The final assembly should look like illustration G-4. 6. Plug the HumidAire power cord into a power outlet. 7. If the VPAP III ST-A is not already plugged in, see Step 2 on page 7.

WARNING Make sure that the power cord and plug are in good condition and the equipment is not damaged. 8. Navigate to the humidifier setting (if available) in the VPAP III ST-A menu and select "HUMIDAIRE". See “How to Use the Detailed Menu (if enabled by your clinician)” on page 20. The VPAP III ST-A is now ready for use with the HumidAire. To start treatment, see “Starting Treatment” on page 13.

Attaching a Passover Humidifier Please refer to the illustrations in section H of the illustration sheet. Medium size (52 cm) air tubing is a necessary accessory for connecting the VPAP III ST-A to the ResMed Passover humidifier. To set up the VPAP III ST-A with the ResMed Passover: 1. Fill the Passover with water as described in the humidifier manual. 2. Connect the medium (52 cm) air tubing to the right connector port, and the long air tubing (2 m or 3 m) to the left connector port on the humidifier (H-1). 3. Place the VPAP III ST-A on top of the Passover (H-2). Do not place the VPAP III ST-A underneath the humidifier. (This is to avoid water spilling into the device.) 4. Connect the free end of the medium air tubing to the air outlet of the VPAP III ST-A (H-3). 5. Connect the mask system to the free end of the long air tubing. The final assembly should look like illustration H-4. 6. If the VPAP III ST-A is not already plugged in, see Step 2 on page 7.

Setting up the VPAP III ST-A System

WARNING Make sure that the power cord and plug are in good condition and the equipment is not damaged. 7. Navigate to the humidifier setting (if available) in the VPAP III ST-A menu and select "PASSOVER". See “How to Use the Detailed Menu (if enabled by your clinician)” on page 20. The VPAP III ST-A is now ready for use with the ResMed Passover. To start treatment, see “Starting Treatment” on page 13.

Using the LCD Screen and Keypad The control panel of the VPAP III ST-A includes an LCD screen, LEDs and keypad. LCD screen

QuickView

LEDs

Left key (green)

Right key (red)

Start/Stop

Alarm Mute Up/down key

LCD Screen The LCD screen displays the menus, treatment screens and alarm conditions.

To assist you in adjusting the VPAP III ST-A, the keypad and LCD are equipped with a backlight. The LCD backlight comes on when the device is turned on or when you press a key, and turns off after two minutes.

LEDs The LEDs display the status of the VPAP III ST-A when active. Green/Red Yellow

The Green LED may be on during treatment, if enabled by your clinician. The Yellow or Red LEDs are on during an alarm condition.

Keypad Keys The VPAP III ST-A keypad has the following keys: Key

Function

Start/Stop

• Starts or stops treatment. • Extended hold for at least three seconds starts the Mask-Fitting feature.

Up/Down

• Allows you to scroll through the VPAP III ST-A menus, submenus and setting options.

Left (green)

• Performs the function indicated by the guiding text displayed above it on the LCD screen. Guiding text includes menu, enter, change and apply.

Right (red)

• Performs the function indicated by the guiding text displayed above it on the LCD screen. Guiding text includes exit and cancel.

Alarm Mute

• Press once to mute alarms. If the problem is still present, the alarm will sound again after two minutes. See “Alarm Mute Key” on page 29.

QuickView

• Clinical menu function key. Clinical use only.

Keypad and LCD Backlight To assist you in adjusting the VPAP III ST-A, the keypad and LCD are equipped with a backlight. The LCD backlight comes on when the unit is turned on or when you press a key, and turns off after 2 minutes. Your clinician may have set the LCD backlight to be on continually. The keypad backlight is on at all times when the VPAP III ST-A is powered.

Setting up the VPAP III ST-A System

Starting Treatment The VPAP III ST-A should be assembled beside your bed with the air tubing and mask system connected. See “Setting up the VPAP III ST-A” on page 7.

1 Turn the main power switch at the back of the device to on (I).

Main power switch

When the VPAP III ST-A is turned on, a welcome message is displayed on the LCD screen. The VPAP (or Ramp) screen then appears. Note: If you have the HumidAire 2i attached, see “Using the HumidAire 2i Warm-up Feature” on page 14.

2 Fit your mask as described in the mask user instructions. 3 Lie down and arrange the air tubing so that it is free to move if you turn in your sleep.

CAUTION Do not leave long lengths of air tubing around the top of your bed. It could twist around your head or neck while you are sleeping. • Make sure the area around the flow generator is dry and clean. It should also be clear of bedding, clothes and other potential blockages. •

4 To start treatment, press the Start/Stop key or if your clinician has enabled the SmartStart function, simply breathe into the mask and treatment will begin. After starting treatment, you can display one of the treatment screens described in “Treatment Screens” on page 25.

Ramp Time Ramp time is a feature which can be enabled by your clinician. If you have difficulty falling asleep with full pressure, select a ramp time. The airflow will start very gently while you fall asleep. The pressure will slowly increase to full operating pressure over the selected ramp time. The clinician has set a maximum ramp time; you may select any value up to the maximum. To select a ramp time, see “Ramp Screen” on page 19.

Starting Treatment

Stopping Treatment To stop treatment at any time, remove your mask and press the Start/Stop key or if your clinician has enabled the SmartStart function, simply remove your mask and treatment will end (SmartStop is not applicable with the "Mir Full" mask setting).

Using the HumidAire 2i Warm-up Feature If using a HumidAire 2i with the VPAP III ST-A, you can use the Warm-up feature to pre-heat the water in the humidifier prior to starting treatment. After stopping treatment, the VPAP III ST-A will continue to blow air gently to assist cooling of the heater plate. See the HumidAire 2i User’s Manual for further details.

Using the Mask-Fitting Feature The VPAP III ST-A mask-fitting feature can be used to help you fit your mask properly. The mask-fitting feature delivers air pressure for a three-minute period, prior to starting treatment, for checking and adjusting your mask fit to minimize leaks. If a Ramp time is selected, the mask can be adjusted at a pressure closer to the prescribed pressure. To use the mask-fitting feature: 1. Fit your mask as described in the user instructions. 2. Hold down the Start/Stop key for at least three seconds until air pressure delivery starts. The following display will appear on the LCD screen indicating that the mask-fitting feature is in operation. The flow generator will ramp to the MaskFit pressure and will remain at this pressure for three minutes. A Mask-Fit star rating is also displayed. See “Definitions of Mask-Fit Star Rating” on page 15. 0DVN)LW H[FHOQW

Mask-Fit star rating

Notes: The Mask-Fit star rating display disappears after three minutes. • The mask-fitting feature can only be started from the VPAP (or Ramp) screen. • The Mask-Fit pressure is the set treatment pressure or 10 cm H20, whichever is greater. 3. Adjust your mask, mask cushion and headgear until you have a secure and comfortable fit. •

Once you have a secure and comfortable fit, check your Mask-Fit star rating on the LCD screen. Definitions of the Mask-Fit star ratings are presented in Table 1. Note: If there is another person nearby to check your Mask-Fit star rating, you can adjust your mask, mask cushion and headgear while lying down. 4. After three minutes, treatment will begin. • If you do not wish to wait three minutes, hold down the Start/Stop key for at least three seconds and treatment will begin immediately. • If you press the Start/Stop key for less than three seconds, the VPAP III ST-A will return to standby mode (the VPAP or Ramp screen is displayed). Table 1: Definitions of Mask-Fit Star Rating Star rating

Definition

*****

Excellent

****-

Very good

***--

Good

**---

Adjust mask

*----

Adjust mask

HIGH LEAK

Adjust mask

Starting Treatment

Cleaning and Maintenance You should regularly carry out the cleaning and maintenance described in this section.

Daily Cleaning Mask Clean the mask according to the instructions supplied with the mask.

Air tubing Disconnect the air tubing from the VPAP III ST-A (and humidifier, if used) and hang the tubing and mask in a clean, dry place until next use.

CAUTION Do not hang the air tubing in direct sunlight as the tubing may harden over time and eventually crack.

Humidifier If you are using a humidifier, clean it according to the instructions in the humidifier user manual.

Weekly Cleaning 1. Remove the air tubing from the VPAP III ST-A and the mask. 2. Wash the air tubing in warm water using mild detergent. Rinse thoroughly, hang and allow to dry. 3. Before next use, assemble the mask and headgear according to the user instructions. 4. Reconnect the air tubing to the air outlet and mask.

CAUTION Do not use bleach, chlorine-, alcohol- or aromatic-based solutions (including all scented oils), moisturizing or antibacterial soaps to clean the air tubing or the VPAP III ST-A. These solutions may cause hardening and reduce the life of the product. • Do not hang the air tubing in direct sunlight as the tubing may harden over time and eventually crack. •

Periodic Cleaning 1. Clean the exterior of the VPAP III ST-A with a damp cloth and mild liquid soap. 2. Inspect the air filter to check if it is blocked by dirt or contains holes. See “Replacing the Air Filter” on page 18.

WARNING Beware of electric shock. Do not immerse the flow generator or power cord in water. Always unplug the flow generator before cleaning and be sure that it is dry before reconnecting. Cleaning and Maintenance

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