Mask system

A mask system configured to deliver air pressurized by a flow generator system by at least 4 cm H2O above atmospheric pressure to the airways of a patient to treat sleep disordered breathing (SDB) by continuous positive airway pressure (CPAP), the mask system comprising:

• a mask comprising:
• a semi-rigid portion;
• a soft, patient contacting portion configured to form a seal with the patient's nose in use;
• and
• a first vent arrangement provided to the semi-rigid portion and configured to discharge gas from the mask to atmosphere during therapy;
• two inlet conduits, each of the two inlet conduits configured to extend from a position superior to the patient's head and along a corresponding side of the patient's head in use, and each of the two inlet conduits in fluid communication with a corresponding side of the mask to deliver pressurized air to the mask;
• a manifold in fluid communication with the two inlet conduits, the manifold configured to be connected to an air delivery tube to receive pressurized air from the flow generator system and to deliver pressurized air to the mask through the two inlet conduits;
• and
• a second vent arrangement provided to the manifold and configured to discharge gas to atmosphere during therapy.

A mask system configured to deliver air pressurized by a flow generator system by at least 4 cm H2O above atmospheric pressure to the airways of a patient to treat sleep disordered breathing (SDB) by continuous positive airway pressure (CPAP), the mask system comprising:

• a mask comprising:
• a semi-rigid portion;
• a soft, patient contacting portion configured to form a seal with the patient's nose in use;
• and
• a first vent arrangement provided to the semi-rigid portion and configured to discharge gas from the mask to atmosphere during therapy;
• two inlet conduits, each of the two inlet conduits configured to extend from a position superior to the patient's head and along a corresponding side of the patient's head in use, and each of the two inlet conduits being in fluid communication with a corresponding side of the mask to deliver pressurized air to the mask;
• an elbow configured to be connected to an air delivery tube to receive pressurized air from the flow generator system;
• and
• a second vent arrangement provided to the elbow and configured to discharge gas to atmosphere during therapy.

A mask system configured to deliver air pressurized by a flow generator system by at least 4 cm H2O above atmospheric pressure to the airways of a patient to treat sleep disordered breathing (SDB) by continuous positive airway pressure (CPAP), the mask system comprising:

• a mask comprising:
• a cushion configured to form a seal with the patient's nose in use;
• and
• a first vent arrangement configured to discharge gas from the mask to atmosphere during therapy;
• two inlet conduits, each of the two inlet conduits configured to extend from a position superior to the patient's head and along a corresponding side of the patient's head in use, and each of the two inlet conduits being in fluid communication with a corresponding side of the mask to deliver pressurized air to the mask;
• and
• a second vent arrangement configured to be positioned superior to the patient's head in use and configured to discharge gas to atmosphere during therapy.

A mask system configured to deliver air pressurized by a flow generator system above atmospheric pressure by at least 4 cm H2O to the airways of a patient to treat sleep disordered breathing (SDB) by continuous positive airway pressure (CPAP), the mask system comprising:

• a mask comprising a cushion configured to form a seal with the patient's nose in use;
• two inlet conduits, each of the two inlet conduits configured to extend from a position superior to the patient's head and along a corresponding side of the patient's head in use, and each of the two inlet conduits being in fluid communication with a corresponding side of the mask to deliver pressurized air to the mask;
• a first vent arrangement configured to be positioned superior to the patient's head in use and configured to discharge gas to atmosphere during therapy;
• and
• a second vent arrangement configured to be positioned inferior to the first vent arrangement in use and configured to discharge gas to atmosphere during therapy.