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•A patient should not connect a device to the module connector port unless instructed to do so by
their health care provider or physician. Only ResMed products are designed to be connected to the
module connector port. Connecting other devices could result in injury, or damage to the S9 device.
•These S9 devices should only be used with masks (and connectors1) recommended by ResMed, or
by a physician or respiratory therapist. A mask should not be used unless the device is turned on.
Once the mask is fitted, ensure that the device is blowing air. The vent hole or holes associated
with the mask should never be blocked.
Explanation: Your S9 is 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 CPAP devices.
•In the event of power failure2or machine malfunction, remove the mask.
•These S9 devices can be set to deliver pressures up to 20 cm H2O. In the unlikely event of certain
fault conditions, pressures up to 30 cm H2O are possible.
•Oxygen flow must be turned off when the CPAP device is not operating, so that unused oxygen
does not accumulate within the device enclosure and create a risk of fire.
•Oxygen supports combustion. Oxygen must not be used while smoking or in the presence of an
open flame.
S9 CAUTIONS
•Be careful not to place your device where it can be bumped or where someone is likely to trip over
the power cord.
•If you put the device on the floor, make sure the area is free from dust and clear of bedding, clothes
or other objects that could block the air inlet or cover the power supply unit.
•Make sure the area around the device is dry and clean.
•Do not hang the air tubing in direct sunlight as it may harden over time and eventually crack.
•Do not wash the air filter. The air filter is not washable or reusable.
•The air filter cover protects the device in the event of accidental liquid spillage. Ensure the air filter
and air filter cover are fitted at all times.
1. Ports may be incorporated into the mask or in connectors that are near the mask.
2. 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.
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