SPECIAL NOTES
SPECIAL NOTES
DANGER/WARNING/CAUTION notices as used in this manual apply to hazards or unsafe practices which could result in personal
injury or property damage.
NOTICE
THE INFORMATION CONTAINED IN THIS DOCUMENT IS
SUBJECT TO CHANGE WITHOUT NOTICE.
CHECK ALL PARTS FOR SHIPPING DAMAGE. IF SHIPPING
DAMAGEISNOTED,DONOTUSE. CONTACTDEALER/CARRIER
FORFURTHERINSTRUCTION.
THEINVACARE TWILIGHT NASAL MASK IS INTENDED TO BE
USED WITH POSITIVE AIRWAY PRESSURE DEVICES SUCH AS CPAP, TO PROVIDE
ADULT OBSTRUCTIVE SLEEP APNEA. THE MASK IS INTENDED
FOR SINGLE PATIENT USE. THE MASK IS TO BE USED ON ADULT PATIENTS (> 66 LBS [30 kg]) FOR WHOM POSITIVE
AIRWAY PRESSURE THERAPY HAS BEEN PRESCRIBED.
WARNING
DO NOT INSTALL, MAINTAIN OR OPERATE THIS
EQUIPMENT WITHOUT FIRST READING AND
UNDERSTANDING THIS MANUAL. IF YOU ARE
UNABLE TO UNDERSTAND THE DANGERS/
WARNINGS/CAUTIONS AND INSTRUCTIONS,
CONTACT YOUR HOME HEALTHCARE PROVIDER
BEFORE ATTEMPTING TO USE THIS EQUIPMENT
- OTHERWISE INJURY OR DAMAGE MAY RESULT.
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SPECIAL NOTES
SAFETY SUMMARY
To ensure the safe and proper installation and use of the Invacare Twilight Nasal Mask and Headgear, these instructions MUST be followed:
WARNING
This Twilight Nasal Mask should be used only with CPAP systems recommended by your physician or respiratory therapist. A mask should not be used unless the CPAP system is turned on and operating properly.
NEVER block the vent hole or holes associated with the mask.
Explanation of Warning: CPAP systems are intended to be used with special masks with connectors which have vent holes to allow continuous flow of air out of the mask. When the CPAP machine is turned on and functioning properly, new air from the CPAP machine flushes the exhaled air out through the attached mask exhalation port. However, when the CPAP machine is not operating, not enough fresh air is provided through the mask, and exhaled air may be rebreathed. Rebreathing of exhaled air for longer than several minutes can in some circumstances lead to suffocation. This warning applies to most models of CPAP systems.
The entire mask system is for single patient use, and must not be reused on another person. This is to avoid risk of
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HEADGEAR/MASK ASSEMBLY, PLACEMENT
HEADGEAR/MASK ASSEMBLY, PLACEMENT
AND USAGE (FIGURE 1)
NOTE: Wash the headgear before using it for the first time, as dye may run. Refer to CLEANING THE MASK AND HEADGEAR in this manual.
NOTE: Invacare recommends washing your face before fitting the mask. This will remove excess facial oil and extend the life of the mask.
1.Check the nasal mask, ensuring that the nasal cushion is attached, the swivels function, and the exhalation ports are clear.
2.Attach the headgear to the nasal mask by sliding the upper headgear straps through the loophole of the forehead support.
3.Adjust each strap by folding it back and attaching it to itself, using the hook and loop fastener straps.
4.Slide the lower headgear strap through the loopholes of the headgear clips.
5.Loosely secure the straps by folding them back and using the hook and loop fastener straps.
6.Connect a standard 22mm bore,
7.Turn ON the flow generator BEFORE placing the mask on your face.
8.Place mask on face with headgear straps behind head.
9.Adjust the mask position on the nose. Depress the forehead support adjustment tab and slide the forehead support up or down until it contacts the forehead and the upper portion of the nasal cushion lightly touches the bridge of the nose. The mask should fit comfortably.
10.Place the mask loosely over the nose, with minimal pressure.
11.Attach the headgear clips to the nasal mask.
NOTE: If a leak occurs, tighten the headgear straps by readjusting the hook and loop fasteners.
WARNING
DO NOT pull the straps too tight, this can cause skin irritation and may deform the nasal cushion, causing a leak. If the mask and headgear are adjusted correctly and a problem persists, contact your healthcare professional.
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HEADGEAR/MASK ASSEMBLY, PLACEMENT
DETAIL ???A???
Nasal
Cushion
Mask Shell with
Exhalation Ports
Upper Headgear
Strap
FIGURE 1 - HEADGEAR/MASK ASSEMBLY,
PLACEMENT AND USAGE
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HEADGEAR/MASK REMOVAL, CLEANING
REMOVING THE MASK AND HEADGEAR (FIGURE 2)
1.Place your thumb and forefinger around one of the headgear clips and gently pull the headgear clip away from your face.
NOTE: It is not necessary to remove the headgear straps from the clips or the forehead support when removing the mask.
2. Pull the mask forward and lift it up and over the head.
Headgear
Clip
Headgear
Clip
FIGURE 2 - REMOVING THE MASK AND HEADGEAR
CLEANING THE MASK AND HEADGEAR
CAUTION
ALWAYS be sure to remove any foreign material (dirt, lint, etc.) from the exhalation ports.
DO NOT
Alcohol may be used to clean the silicone nasal cushion ONLY. DO NOT use alcohol to clean the mask
frame, head gear or air tubing.
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MASK REMOVAL, DISASSEMBLY AND CLEANING
WARNING
DO NOT expose any part of the mask system or tubing to direct sunlight, as it may cause mask deterioration.
After cleaning, ALWAYS rinse mask thoroughly. Insuffi- cient rinsing of cleaning agents can result in severe skin rash, irritation and skin breakdown.
Wash the entire mask system (except the headgear) after each use. Wash the headgear at least once per week.
NOTE: ALWAYS hand wash the headgear to increase the life of the product.
1.Separate the headgear from the mask assembly and hand wash the mask components using a mild detergent (such as dishwashing detergent) in warm water. Rinse thoroughly and allow parts to
NOTE: It is not necessary to remove the nasal cushion after every use. It can be cleaned and rinsed while it is mounted to the mask shell.
DISASSEMBLING/REASSEMBLING THE NASAL
CUSHION TO THE MASK SHELL (FIGURE 3)
1.Remove the nasal cushion by slowly pulling it out of the nasal mask channel. Refer to FIGURE 3.
2.Hand wash the nasal cushion using a mild detergent (such as dishwashing detergent) in warm water.
3.Prior to rinsing, press the ribbed portion of the nasal cushion into the channel of the mask shell.
NOTE: Wetting the cushion ribbing sparingly with soapy water will ease the insertion into the nasal channel.
4.Start with the top of the nasal mask cushion, gradually working down the sides until the nasal mask cushion is seated in the nasal mask channel.
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REASSEMBLY
Nasal Mask
Nasal Mask
Channel
Cushion Ribbing
Nasal Mask
Cushion
Nasal Mask 
Channel
Cushion Ribbing
FIGURE 3 - DISASSEMBLING/REASSEMBLING THE
NASAL CUSHION TO THE MASK SHELL
NOTE: Ensure the nasal cushion is COMPLETELY seated in the channel before use. When properly assembled, the nasal cushion and mask shell should form a smooth, continuous surface.
5.After the nasal mask cushion is securely reassembled, rinse the entire mask thoroughly and allow to air dry out of direct sunlight.
NOTE: Make sure the mask is dry before use. Inspect the mask after cleaning.
CAUTION
Replace the mask if any parts are damaged or deteriorated.
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STORAGE, SPECIFICATIONS
STORAGE AND OPERATING CONDITIONS
TYPICAL VALUES FOR PRESSURE DROP
0.30 cmH2O (.030 kPa) at flow of 50 LPM 1.14 cmH2O (.112 kPa) at flow of 100 LPM
PRESSURE AND FLOW CHARACTERISTICS
EXHAUST VENT PRESSURE VS. FLOW
Pressure (cmH2O)
REPLACEMENT ITEMS/ ACCESSORIES
The following Invacare Twilight Mask replacement items and accessories are available:
???Standard nasal cushions - ISP2010
???Large nasal cushions - ISP2010L
???Headgear - 1122733
???Chin Restraint - 1122734
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WARRANTY
LIMITED WARRANTY
PLEASE NOTE: THE WARRANTY BELOW HAS BEEN DRAFTED
TO COMPLY WITH FEDERAL LAW APPLICABLE TO PRODUCTS MANUFACTURED AFTER JULY 4, 1975.
This warranty is extended only to the original purchaser/user of our products.
This warranty gives you specific legal rights and you may also have other legal rights which vary from state to state.
Invacare warrants the Twilight Mask to be free from defects in materials and workmanship for a period of 90 days from date of purchase. If within such warranty period any such product shall be proven to be defective, such product shall be repaired or replaced, at Invacare's option. This warranty does not include any labor or shipping charges incurred in replacement part installation or repair of any such product. Invacare's sole obligation and your exclusive remedy under this warranty shall be limited to such repair and/or replacement.
For warranty service, please contact the dealer from whom you purchased your Invacare product. In the event you do not receive satisfactory warranty service, please write directly to Invacare at the address on the back cover, provide dealer's name, address, date of purchase, indicate nature of the defect and, if the product is serialized, indicate the serial number. Do not return products to our factory without our prior consent.
LIMITATIONS AND EXCLUSIONS: THE FOREGOING
WARRANTY SHALL NOT APPLY TO SERIAL NUMBERED
PRODUCTS IF THE SERIAL NUMBER HAS BEEN REMOVED OR
DEFACED, PRODUCTS SUBJECTED TO NEGLIGENCE,
ACCIDENT, IMPROPER OPERATION, MAINTENANCE OR
STORAGE, COMMERCIAL OR INSTITUTIONAL USE,
PRODUCTS MODIFIED WITHOUT INVACARE'S EXPRESS
WRITTEN CONSENT (INCLUDING, BUT NOT LIMITED TO,
MODIFICATION THROUGH THE USE OF UNAUTHORIZED
PARTS OR ATTACHMENTS; PRODUCTS DAMAGED BY
REASON OF REPAIRS MADE TO ANY COMPONENT WITHOUT
THE SPECIFIC CONSENT OF INVACARE, OR TO A PRODUCT
DAMAGED BY CIRCUMSTANCES BEYOND INVACARE'S
CONTROL, AND SUCH EVALUATION WILL BE SOLELY
DETERMINED BY INVACARE. THE WARRANTY SHALL NOT
APPLY TO PROBLEMS ARISING FROM NORMAL WEAR OR
FAILURE TO ADHERE TO THE FOLLOWING INSTRUCTIONS.
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WARRANTY
THE FOREGOING EXPRESS WARRANTY IS EXCLUSIVE AND IN
LIEU OF ANY OTHER WARRANTIES WHATSOEVER,
WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, AND THE SOLE REMEDY FOR
VIOLATIONS OF ANY WARRANTY WHATSOEVER, SHALL BE
LIMITED TO REPAIR OR REPLACEMENT OF THE DEFECTIVE
PRODUCT PURSUANT TO THE TERMS CONTAINED HEREIN.
THE APPLICATION OF ANY IMPLIED WARRANTY
WHATSOEVER SHALL NOT EXTEND BEYOND THE DURATION
OF THE EXPRESS WARRANTY PROVIDED HEREIN.
THE MANUFACTURER SHALL NOT BE LIABLE FOR ANY
CONSEQUENTIAL OR INCIDENTAL DAMAGES WHATSOEVER.
THIS WARRANTY SHALL BE EXTENDED TO COMPLY WITH
STATE/PROVINCIAL LAWS AND REQUIREMENTS.
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Sanford, Florida USA 32773
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