H5i Heated Humidifier with ClimateLine Tubing Seamlessly integrates with any S9 or VPAP device, the H5i features inbuilt intelligence to deliver constant humidity, while eliminating rain out. When combines with ClimateLine heated tube, ResMed’s exclusive Climate Control feature can be activated. Lifting humidification and comfort to a new level, Climate Control delivers and maintains your personalised comfort settings, even as ambient conditions change throughout the night. Manufacturer part number: p/n 36915