The Philips Respironics Beauty Panels are designed for use with all DreamStation Go Portable CPAP Machines. The panels protect the unit from damage, wear and tear and should be in place at all times (as appropriate) when the machine is in use. The panel easily attaches to your DreamStation Go with no tools needed. Simply slide out the old beauty panel from your DreamStation Go, and slide the new one into place. There are two different Beauty Panels available for DreamStation GO devices: The Rear End Beauty Panel protects the back of your DreamStation Go where the power cord is attached. The Rear End Cap should only be removed to attach a DreamStation Go Battery Pack to your device. The Front End Beauty Panel protects the front of your DreamStation Go and attaches where the tubing connects to the machine. The Front End Cap should not be removed or replaced unless it has been damaged. The front-end panel can be found here. COMPATIBILITY: DreamStation Go Travel CPAP DreamStation Go Travel Auto CPAP.