The notes you found seem to be a mixture of products from these two manufacturers. Remstar and Encore are equipment and software names from Respironics. Meanwhile, S9 is a model series by ResMed. That H5i is the model name for a heated humidifier by ResMed that works with ResMed's S9 machines.
Not sure if this helps any, other than to indicate it's certainly a mixed message, especially with some items lined out.