Follow the manufacturer’s instructions on cleaning your mask.  Your tubing can be cleaned with a 5% solution of mild liquid detergent and distilled water.  See device user manual for more details.   Transcend CPAP devices are generally maintenance-free devices. However, it’s important to keep them clean to ensure maximum efficiency and durability.    Cleaning the Unit Follow these instructions to clean the exterior of the Transcend CPAP:  Mix a solution of 5% mild liquid detergent in distilled water Wipe the exterior of the device with the mixture Wipe the device with distilled water to remove washing solution Dry with a clean, lint-free cloth See device user manual for more details.   When cleaning: Unplug the CPAP device before cleaning Do not submerge the CPAP or power supply in liquid Prevent water from entering any openings of the device Do not use harsh or abrasive cleaning agents to clean the device or any components Do not attempt to sterilize the CPAP device Do not place cleaning materials, such as a cloth or liquid, into the device air inlet or air outlet connector