The New ResMed S9 Autoset CPAP is no longer available, The Refurbished ResMed S9 Autoset CPAP I received looks brand new. I wanted a backup unit because my current unit is going on seven year now with no problems. This product works wonders it's so quiet you won't even notice if it's on. The automatic pressure adjustment works well and not give more pressure than is needed. Looks great and it's built with high quality standards, I’m very satisfied !!!