FEATURES Expiratory pressure relief (EPR™) adjusts pressure for maximum comfort Climate control maintains ideal humidification according to real-time environment Easy-Breathe motor offers the quietest therapy available Easy-to-use controls and color LCD makes menu navigation simple and intuitive SlimLine™(INCLUDES) and ClimateLine™ (OPTIONAL) tubes are exceptionally slim and lightweight, virtually eliminating tube drag ResMed’s enhanced Easy-Breathe Motor The S9 Series includes an enhanced Easy-Breathe motor. Now featuring axial airflow, the enhanced Easy-Breathe motor produces less turbulence. The innovative design features foam and noise isolating materials incorporated into the base of the S9. The result is simple – less noise. Taking quiet to the next level Radiated noise levels (the sound in the room) are the same as ResMed’s market-leading S8 II Series. With noise levels at 24 dBA*, the S9 Series is no louder than normal breathing. Conducted noise levels (the noise through the tube) have been further reduced by 78%!* The result – a peaceful night’s sleep