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16
General Warnings and Cautions
!
Warnings
• Advice contained in this manual should not supersede instructions given by the
prescribing physician.
• A patient should not connect a device to the data communication port unless
instructed to do so by their health care provider or physician. Only ResMed products
are designed to be connected to the data communication port. Connecting other
devices could result in injury, or damage to the VPAP device.
• These VPAP devices should only be used with masks (and connectors
*
) recommended
by ResMed, or by a physician or respiratory therapist. A mask should not be used
unless the VPAP device is turned on and operating properly. The vent hole or holes
associated with the mask should never be blocked.
Explanation: These VPAP devices are intended to be used with special masks (or
connectors
*
) which have vent holes to allow continuous flow of air out of the mask.
When the device is turned on and functioning properly, new air from the device flushes
the exhaled air out through the mask vent holes. However, when the device is not
operating, insufficient fresh air will be provided through the mask, and the exhaled air
may be rebreathed. Rebreathing of exhaled air for longer than several minutes can, in
some circumstances, lead to suffocation. This applies to most models of PAP devices.
• In the event of power failure
†
or machine malfunction, remove the mask.
• These VPAP devices can be set to deliver pressures up to 25 cm H
2
O. In the unlikely
event of certain fault conditions, pressures up to 40 cm H
2
O are possible.
• Follow all precautions when using supplemental oxygen.
• Oxygen flow must be turned off when the flow generator is not operating, so that
unused oxygen does not accumulate within the flow generator enclosure and create a
risk of fire.
• If the oxygen has been left on, turn off the device, then wait 30 minutes before turning
on the device again.
• Do not use the VPAP Auto 25, VPAP ST or VPAP S if there are obvious external defects
or unexplained changes in performance.
• Do not open the VPAP case. There are no user serviceable parts inside. Repairs and
internal servicing should only be performed by an authorized service agent.
• Explosion hazard – do not use in the vicinity of flammable anesthetics.
!
Cautions
• At low pressures, the flow through the exhalation ports of your mask may not clear all
exhaled gas from the tubing. Some rebreathing may occur.
• The airflow for breathing produced by this device can be as much as 11ºF (6ºC) higher
than the temperature of the room. Caution should be exercised if the room
temperature is warmer than 90ºF (32ºC).
• When AC mains power (100–240V AC) is not available, always use a ResMed DC/DC
converter 24V/50W output converter. (The DC/DC converter 24V/50W output converter
is available as an optional accessory.)
Note: The above are general warnings and cautions. Specific warnings, cautions and
notes appear with the relevant instructions in the manual.
* Ports may be incorporated into the mask or in connectors that are near the mask.
† During partial (below rated minimum voltage) or total power failure, therapy pressures will not be
delivered. When power is restored, operation will recommence with no change to settings.