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A fastenable air delivery conduit includes a body portion having a supply end and a delivery end and a fastener that substantially extends from the supply end to the delivery end. The fastener, when engaged, forms the body portion into a fastened configuration, and when disengaged, forms the body po

A fastenable air delivery conduit includes a body portion having a supply end and a delivery end and a fastener that substantially extends from the supply end to the delivery end. The fastener, when engaged, forms the body portion into a fastened configuration, and when disengaged, forms the body portion into an unfastened configuration. The body portion defines a longitudinal axis when in the fastened configuration, and the fastener extends from the source end to the delivery end of the body portion at an angle that is non-parallel with the longitudinal axis of the conduit.

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1. A system, comprising: an air delivery conduit that is convertible between a first configuration in which an interior surface of the air delivery conduit delimits an interior core and a second configuration in which the interior surface is exposed and does not delimit the interior core:a storage s

1. A system, comprising: an air delivery conduit that is convertible between a first configuration in which an interior surface of the air delivery conduit delimits an interior core and a second configuration in which the interior surface is exposed and does not delimit the interior core:a storage space to house the air delivery conduit; andat least one cleaning element arranged to clean the inner surface and/or an outer surface of the air delivery conduit as the air delivery conduit moves into or out of said storage space. 2. The system of claim 1, wherein the air delivery conduit is configured to be used with a Continuous Positive Airway Pressure (CPAP) system, the first configuration being a fastened configuration and the second configuration being an unfastened configuration, the air delivery conduit comprising: a body portion having a supply end and a delivery end; anda fastener that substantially extends from the supply end to the delivery end,the fastener, when engaged, forming the body portion into the fastened configuration of the air delivery conduit, and when disengaged, forming the body portion into the unfastened configuration of the air delivery conduit,wherein the body portion defines a longitudinal axis when in the fastened configuration of the air delivery conduit. 3. The system of claim 2, wherein the fastener extends at an angle to the longitudinal axis of the body portion. 4. The system of claim 3, wherein the fastener extends without forming a complete revolution along the fastened configuration of the air delivery conduit. 5. The system of claim 2, wherein the fastenable air delivery conduit is arranged for storage in the storage space in the unfastened configuration. 6. The system of claim 1, wherein the at least one cleaning element is located relative to the storage space. 7. The system of claim 6, wherein the at least one cleaning element is located on or in the storage space. 8. The system of claim 1, wherein the at least one cleaning element comprises a cleaning roller, a brush or a radiation-emitting device. 9. The system of claim 8, wherein each of the cleaning roller and the brush comprises a cleaning agent. 10. The system of claim 1, wherein the at least one cleaning element is arranged to clean the inner surface and the outer surface of the air delivery conduit. 11. A method for cleaning an air delivery conduit, the method comprising: providing an air delivery conduit that is convertible between a first configuration in which an interior surface of the air delivery conduit delimits an interior core and a second configuration in which the interior surface is exposed and does not delimit the interior core;providing a storage space to house the air delivery conduit; andproviding at least one cleaning element arranged to clean the inner surface and/or an outer surface of the air delivery conduit as the air delivery conduit moves into or out of said storage space. 12. The method of claim 11, wherein the air delivery conduit is configured to be used with a Continuous Positive Airway Pressure (CPAP) system, the first configuration being a fastened configuration and the second configuration being an unfastened configuration, the air delivery conduit comprising: a body portion having a supply end and a delivery end; anda fastener that substantially extends from the supply end to the delivery end,the fastener, when engaged, forms the body portion into the fastened configuration, and when disengaged, forms the body portion into the unfastened configuration,wherein the body portion defines a longitudinal axis when in the fastened configuration. 13. The method of claim 11, wherein the at least one cleaning element is located relative to the storage space. 14. The method of claim 13, wherein the at least one cleaning element is located on or in the storage space. 15. The method of claim 11, wherein the at least one cleaning element comprises a cleaning roller, a brush or a radiation-emitting device. 16. The method of claim 15, wherein each of the cleaning roller and the brush comprises a cleaning agent. 17. The method of claim 11, wherein the storage space and the at least one cleaning element are arranged to clean the inner surface and the outer surface of the air delivery conduit when said air delivery conduit is moved into or out of said storage space. 18. The system of claim 1, wherein the storage space is within a flow generator configured to provide a supply of gas to the air delivery conduit. 19. The system of claim 1, wherein the at least one cleaning element is arranged to clean the inner surface of the air delivery conduit. 20. The system of claim 1, wherein the at least one cleaning element is arranged to clean the outer surface of the air delivery conduit. 21. The system of claim 1, wherein the at least one cleaning element is arranged to clean the inner surface and the outer surface of the air delivery conduit. 22. The method of claim 11, wherein the storage space is within a flow generator configured to provide a supply of gas to the air delivery conduit. 23. The method of claim 11, wherein the at least one cleaning element is arranged to clean the inner surface of the air delivery conduit. 24. The method of claim 11, wherein the at least one cleaning element is arranged to clean the outer surface of the air delivery conduit. 25. The method of claim 11, wherein the at least one cleaning element is arranged to clean the inner surface and the outer surface of the air delivery conduit.