Battery for Rhythm TOC3 Portable Oxygen Concentrators Asthma & Allergy They are used to attach

They are used to attach the mask to the lower headgear straps

allowing you to keep multiple batteries charged and ready for use whenever you need them

ResMed's ComfiSoft Full Face Cushions come standard with all AirTouch F30i Full Face CPAP/BiPAP Masks

Just slip out the old battery and slip in a new one to extend your time on the go with the iGo2

Battery for Rhythm TOC3 Portable Oxygen Concentrators Asthma & Allergy They are used to attachThese batteries are designed for use with all Rhythm TOC3 Portable Oxygen Concentrators. Each battery will last approximately 4. 9 hours at a Pulse Dose setting of 2 and 1. 9 hours on a Continuous setting of 2 LPM. When attached to a TOC3 Concentrator, battery status and charge level will be displayed on the concentrator's display.