NEXT Portable Oxygen Concentrator Size:Double Cell Battery Both masks have gel pads

Both masks have gel pads to cushion your cheeks for a restful night's sleep

night-time tasks like humidifier refills

This is the replacement blue headgear for both the ResMed AirFit N20 & the ResMed AirTouch N20 nasal mask

designed exclusively for use with ResMed's S9 series of machines

NEXT Portable Oxygen Concentrator Size:Double Cell Battery Both masks have gel padsThe OxyGo NEXT portable oxygen system is the next generation. Its revolutionary size and battery life have never been seen before at such a high oxygen dose. OxyGo NEXT is a portable oxygen concentrator that weighs only 4. 7 pounds and has six flow settings. It boasts an easy to read LCD display and simple control functions, and it can be charged at home or on the move, allowing you to embrace what's NEXT!