8-Cell Standard Battery for FreeStyle Comfort Portable Oxygen Concentrators 044F8200 This package includes one Bongo

This package includes one Bongo RX Silicone Nose insert and headgear (for optional use)

This replacement HEPA Paper Filter

The minimal contact

This Large Intake Filter

Designed exclusively for use with ResMed's AirSense 10 Series CPAP and AirCurve 10 Series BiLevel machines

8-Cell Standard Battery for FreeStyle Comfort Portable Oxygen Concentrators 044F8200 This package includes one BongoThis Standard 8 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.