ResMed Mirage™ FX (mask cushion only)  
  Includes the nasal cushion for the ResMed Mirage™ FX nasal CPAP mask. This purchase does not include the Mirage FX headgear or mask frame system.   
  About the complete ResMed Mirage FX mask system: 
Nose coverage, nasal mask, silicone cushion
Quick-release elbow allows you to get up at night and disconnect without removing the mask
Features the Spring Air™ cushion, designed to reduced pressure on the face while maintaining a high-performing seal
Design is a predecessor to today’s popular AirFit™ series
Prescription required for complete mask system