16-Cell Extended Battery for FreeStyle Comfort Portable Oxygen Concentrators 26958-with-26953 A fine cloth inner lining

A fine cloth inner lining -- the Zzzephyr seal -- improves fit and increases comfort

and related accessories

Pilot-Flex goes beyond sleep therapy to recharge a range of handheld devices

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

without the need for a traditional water based heated humidifier

16-Cell Extended Battery for FreeStyle Comfort Portable Oxygen Concentrators 26958-with-26953 A fine cloth inner liningThis 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.