16-Cell Extended Battery for FreeStyle Comfort Portable Oxygen Concentrators 26958-with-26953 These Wisp frames from Respironics

These Wisp frames from Respironics are designed for use with all Wisp CPAP/BiPAP Masks

& Canada) power cord is designed to power the Luna TravelPAP Auto CPAP

and Mirage Vista CPAP/BiLevel Masks

These UltraSoft Full Face Cushions are the standard cushions designed for use with all AirTouch F20 & AirTouch F20 For Her CPAP/BiLevel Masks

As the name suggests

16-Cell Extended Battery for FreeStyle Comfort Portable Oxygen Concentrators 26958-with-26953 These Wisp frames from RespironicsThis Extended 16 Cell Rechargeable Battery for FreeStyle Comfort is offered as an additional option for people who are looking to get more time out of their FreeStyle Comfort than what the typical battery that comes with the concentrator provides.