Newly re-designed ResMed S9 Elite CPAP features its patented Easy-Breathe Technology along with expiratory pressure relief (EPR) to allow people suffering from sleep apnea to breath more "natural" during sleep. New features include: periodic reminders of accessory replacements (e.g., mask, filters, etc.) as well as a mask fitting tool, SlimLine performance tubing and advanced data compliance reporting. New design has a feel of a modern CD/Clock radio instead of the traditional CPAP machine.