2
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 or bilevel devices.
• Follow all precautions when using supplemental oxygen.
• Oxygen flow must be turned off when the CPAP or bilevel 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. Only use oxygen in
well ventilated rooms.
• At a fixed rate of supplemental oxygen flow, the inhaled oxygen
concentration varies, depending on the pressure settings, patient
breathing pattern, mask, point of application and leak rate. This
warning applies to most types of CPAP or bilevel devices.The
technical specifications of the mask are provided for your clinician
to check that they are compatible with the CPAP or bilevel device.
If used outside specification or if used with incompatible devices,
the seal and comfort of the mask may not be effective, optimum
therapy may not be achieved, and leak, or variation in the rate of
leak, may affect the CPAP or bilevel device function.
• Discontinue using this mask if you have ANY adverse reaction to
the use of the mask, and consult your physician or sleep therapist.
• Using a mask may cause tooth, gum or jaw soreness or aggravate
an existing dental condition. If symptoms occur, consult your
physician or dentist.
• As with all masks, some rebreathing may occur at low CPAP
pressures.
• Refer to your CPAP or bilevel device manual for details on
settings and operational information.
• The mask is not intended to be used simultaneously with
nebulizer medications that are in the air path of the mask/tube
• Remove all packaging before using the mask.
Using your mask
When using your mask with ResMed CPAP or bilevel devices that have
mask setting options, refer to the Technical specifications section in this
user guide for mask selection options.