I hAVE A BRAND NEW iNOGEN1 G4 CNCENTRATOR BACK BACK BOUGHT AND NEVER USED
I PREFER TO USE THEN SHOULDER BAG AS I HAVE BAD SHOULDERS AND CANNOT REMOVE IT MYSELF COS £58 HAPPY FOR £35
I hAVE A BRAND NEW iNOGEN1 G4 CNCENTRATOR BACK BACK BOUGHT AND NEVER USED
I PREFER TO USE THEN SHOULDER BAG AS I HAVE BAD SHOULDERS AND CANNOT REMOVE IT MYSELF COS £58 HAPPY FOR £35