Respiratory pressure treatment system

A apparatus for use in treating a respiratory disorder comprising:

• a housing;
• a pressure generator located in the housing and configured to supply a flow of air;
• a device outlet fluidly coupled to the pressure generator and configured to be coupled to an air circuit to deliver the flow of air to a patient interface for treating a respiratory disorder;
• and
• a muffler removably coupled to the housing,
• wherein said muffler further comprises a muffler body, an inlet for receiving the flow of air from the pressure generator, an outlet for delivering the flow of air to the device outlet, clips for disengaging the muffler from the housing and a muffler damper comprising a flexible material configured to reduce a noise produced by the apparatus during operation,
• wherein the muffler damper comprises a travel limiter configured to prevent plastic deformation of a hinge connecting the clips to the muffler body.

A apparatus for use in treating a respiratory disorder comprising:

• a housing;
• a pneumatic block comprising an air path therein;
• a pressure generator located in the pneumatic block and configured to supply a flow of air;
• a device outlet fluidly coupled to the pressure generator and configured to be coupled to an air circuit to deliver the flow of air to a patient interface for treating a respiratory disorder;
• and
• a chassis configured to locate the housing, the pneumatic block and the device outlet, the chassis comprising a dock for receiving a muffler or a humidifier reservoir.