Replacement Interface Frame For Mirage Liberty. This is the replacement frame for the Mirage Liberty Full Face CPAP Interface. When combined with the interface's short tube assembly, cushion, and headgear, the frame helps make the foundation for the CPAP interface. The Liberty frame comes in two sizes: large and small. The small frame is compatible only with the small full-face cushion, while the large frame should only be joined with the large full-face cushion. All sizes of Liberty nasal pillows will fit on either the large or small interface frame. Compatibility. The interface frame is compatible with the Mirage Liberty Hybrid interface and is compatible with both the full face and the nasal pillow cushion designs. The frame is compatible with all-sized nasal pillow cushions; dissimilarly, the small frame is only compatible with the small full-face cushion and the large frame with the large full-face cushion. Key Features. Hybrid Frame Compatible with Full Face and Nasal Pillow Cushions. Durable Replacement, Attaches Easily. Comes in Two Sizes. Reviewers Tip. If you are replacing the frame on your full-face Mirage Liberty, be sure to select the frame that corresponds to the size of your interface cushion. Fitting Your Mirage Liberty. FAQ. Is this interface frame compatible with any other ResMed brands? You should only use this particular frame with the Mirage Liberty. How should I wash this interface frame? Warm and soapy water is all you need. We recommend taking your entire interface into the shower daily for a quick cleaning that won't disrupt your daily routine. My frame is cracked: do I need a new one. Yes, you will eventually disrupt your seal if you have a cracked interface frame. Compatibility. Mirage Liberty Full Face Interface. Mirage Liberty Interface Kit.