Carleton Life Support Systems Inc Cobham AMOGS Advanced Medical Oxygen Generating System, 70309-03900-101. Concentrator, Oxygen, Molecular Sieve, S/A P/N: 70309-03900-101, Mfg P/N 3261165-0101. The firm name on the label is Carleton Life Support Systems Inc., Davenport, IA. Recall
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
Cobham AMOGS Advanced Medical Oxygen Generating System, 70309-03900-101. Concentrator, Oxygen, Molecular Sieve, S/A P/N: 70309-03900-101, Mfg P/N 3261165-0101. The firm name on the label is Carleton Life Support Systems Inc., Davenport, IA.
Brand
Carleton Life Support Systems Inc
Lot Codes / Batch Numbers
Serial Numbers: Qualification Unit - 99251000003454 and 99251000008047, and Production Units - 000036019, 000036336, 000036429, 000029395, 000037473, 99251000100933, 99251000101044, 99251000101224, 99251000101545, 99251000102031, 99251000102144, 99251000102523, 99251000102612, 99251000049251, 99251000104094, 99251000103934, 99251000104405, 99251000049252, 99251000049253, 99251000049254 and 99251000049255.
Products Sold
Serial Numbers: Qualification Unit - 99251000003454 and 99251000008047; and Production Units - 000036019, 000036336, 000036429, 000029395, 000037473, 99251000100933, 99251000101044, 99251000101224, 99251000101545, 99251000102031, 99251000102144, 99251000102523, 99251000102612, 99251000049251, 99251000104094, 99251000103934, 99251000104405, 99251000049252, 99251000049253, 99251000049254 and 99251000049255.
Carleton Life Support Systems Inc is recalling Cobham AMOGS Advanced Medical Oxygen Generating System, 70309-03900-101. Concentrator, Oxygen, Mole due to The backup oxygen supply control valve on the oxygen concentrator could fail resulting in it sticking in the open or closed positions.. Based on FDA medical device recall database.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
The backup oxygen supply control valve on the oxygen concentrator could fail resulting in it sticking in the open or closed positions.
Recommended Action
Per FDA guidance
Cobham Life Support Systems, Inc. issued letters to their two customers via e-mail. One customer letter was dated July 24, 2009 and the other was dated July 28, 2009. Both letters notified the customer of the reason for the recall and that the usage of the concentrator must be restricted to exclude actual use with a patient until corrected. The letter informs customers they are redesigning the backup supply control valve and will coordinate the retrofit in the future. For further information, contact Cobham Life Support at 1-563-383-6421.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 10, 2026