1. Maintaining the temperature of the pipe and its internal airflow. 2. Just like putting on "clothes" on the pipe, suitable for standard (1.8 m or 2 m) CPAP tube. 3. Prevent the temperature difference between the inside and outside of the pipe. 4. Reduce the production of condensed water, practical and convenient to use. 5. Designed with zipper, hook & loop, easy to open and close. Condition: Item Type: CPAP Tube Cover Length: Approx. 186cm / 73.2in Suitable for Maximum Tube Diameter: Approx. 4cm / 1.6in Package List: 1 x CPAP Tube Cover Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.