Designed exclusively for ResMed's S9 Series CPAP machines, the ClimateLine Heated Tubing works with the H5i Climate Control System to provide a more comfortable and consistent therapy experience. Its heated design helps prevent moisture buildup—also known as "rainout"—so you can sleep uninterrupted. Equipped with a built-in heated coil and internal temperature sensor, the tubing automatically regulates air temperature, maintaining ideal humidity levels and reducing dry mouth, nose irritation, and sleep disturbances. Made from high-quality, latex-free materials.