Inogen One G3 Oxygen ConcentratorRecalls & reported problems across all models
Inogen, Inc. · 4 models in the FDA device registry
Data updated Oct 16, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 128
- Deaths reported
- 2
- Injuries reported
- 81
- Recalls
- 0
We found 4 models of Inogen One G3 Oxygen Concentrator by Inogen, Inc. in the FDA's device registry (GUDID). Together they are named in 128 adverse event reports in the FDA's MAUDE database, received between Oct 28, 2020 and Sep 24, 2026 — classified as 2 deaths, 81 injuries, 45 malfunctions.
The most frequently reported specific device problem is “No Flow” (24 reports).
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event. Widely used products collect more reports, so totals can't be used to compare products or estimate failure rates. Only reports that name a model's exact device identifier are counted. What reports can and can't tell you · How this data works
Reports received per month, all models
Most reported Inogen One G3 Oxygen Concentrator problems
Device problems
- No Flow24
- Insufficient Flow or Under Infusion21
- Overheating of Device16
- Failure to Deliver14
- Unexpected Shutdown13
- Unexpected Therapeutic Results10
- Failure to Charge5
- Improper Flow or Infusion5
Patient problems
- Low Oxygen Saturation49
- Dyspnea30
- Unspecified Respiratory Problem24
- Hypoxia12
- Chronic Obstructive Pulmonary Disease (COPD)5
- No Clinical Signs, Symptoms or Conditions4
- Burn(s)3
- Fall2
Inogen One G3 Oxygen Concentrator models
4 models, most reported first. Each model has its own page with its reports, recalls and device details.
- Inogen One G3 Oxygen Concentrator 1050Generator, Oxygen, Portable2 deaths111 reports
- Inogen One G3 Oxygen Concentrator 840Generator, Oxygen, Portable14 reports
- Inogen One G3 Oxygen Concentrator 840Generator, Oxygen, Portable2 reports
- Inogen One G3 Oxygen Concentrator 1050Generator, Oxygen, Portable1 report
Recent Inogen One G3 Oxygen Concentrator adverse event reports
The 15 most recent reports across all models, in the reporter's own words as published by the FDA.
InjurySep 24, 2026Smoking
Patient problems: Dyspnea
MAUDE report 50890099 ↗InjurySep 22, 2026Temperature Problem; Unexpected Shutdown
Patient problems: Presyncope
MAUDE report 50860259 ↗InjurySep 21, 2026Failure to Deliver
Patient problems: Dyspnea; Fall; Syncope/Fainting
MAUDE report 50849236 ↗InjurySep 18, 2026Failure to Charge; Failure to Run on Battery
Patient problems: Dyspnea; Low Oxygen Saturation
MAUDE report 50822569 ↗InjurySep 17, 2026Overheating of Device; Unexpected Shutdown
Patient problems: Unspecified Respiratory Problem
MAUDE report 50811036 ↗InjuryAug 25, 2026Insufficient Flow or Under Infusion
Patient problems: Dyspnea
MAUDE report 50442239 ↗MalfunctionAug 12, 2026Overheating of Device; No Flow
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 50229605 ↗InjuryAug 5, 2026Failure to Run on Battery
Patient problems: Unspecified Respiratory Problem
MAUDE report 50148563 ↗InjuryAug 3, 2026Overheating of Device; Unexpected Shutdown
Patient problems: Dyspnea
MAUDE report 50118031 ↗InjuryAug 3, 2026Device Emits Odor; Overheating of Device
It was reported that the patient's device was overheating and a burning smell was noted. The patient stated they were hospitalized due to the event. A replacement device was sent. No additional information is available at this time as attempt to follow-up with the patient for more information was unsuccessful.
Patient problems: Unspecified Respiratory Problem
MAUDE report 50117518 ↗MalfunctionAug 3, 2026Sparking; No Flow
It was reported that the patient's unit sparked when they tried charging it near the charging port. As a result, the unit stopped working and was not producing any oxygen. There were no patient health changes. A replacement unit was sent to the patient. The Inogen Team attempted to contact the patient for further information three times with no response.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 50110602 ↗MalfunctionJul 28, 2026Sparking
It was reported that the patient saw sparks at the device's charging port when plugged in. There were no patient health changes due to the event. The patient used their stationary unit after. The patient has received their replacement device with no issues.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 50059401 ↗InjuryJul 27, 2026Premature Discharge of Battery; Failure to Charge
It was reported that the device was not charging while plugged in at a court house and the device battery was also not lasting as long as expected. As a result, the device ran out of power and the patient passed out due to being without oxygen. The patient was taken to the hospital and put on life support. The patient has since been released and received their replacement device.
Patient problems: Syncope/Fainting
MAUDE report 50046428 ↗InjuryJul 19, 2026Insufficient Flow or Under Infusion
IT WAS REPORTED THAT THE PATIENT'S UNIT STOPPED WORKING AND WAS NOT PRODUCING ENOUGH OXYGEN. AS A RESULT, THE PATIENT'S OXYGEN LEVELS DROPPED AND THE PATIENT WAS TAKEN TO THE EMERGENCY ROOM AND LATER ADMITTED TO THE HOSPITAL. THEY WERE DISCHARGED AFTER THREE DAYS AND THEY ARE RECOVERING. A REPLACEMENT UNIT WAS SENT TO THE PATIENT AND IT IS WORKING FOR THEM.
Patient problems: Dyspnea
MAUDE report 25867274 ↗InjuryJul 16, 2026Insufficient Flow or Under Infusion
IT WAS REPORTED THAT WHEN THE PATIENT WENT TO GO TO THEIR APPOINTMENT, THE PATIENT FELT LIKE THEY WERE SUFFOCATING WHILE USING THE DEVICE. NO ERROR MESSAGES WERE SEEN ON THE DEVICE. AS A RESULT, THE PATIENT WAS SENT TO THE HOSPITAL EMERGENCY ROOM AND WAS PUT ON THEIR OXYGEN. WHEN THE PATIENT LEFT TO THEIR VEHICLE, THE PATIENT STARTED FEELING LIKE THEY WERE SUFFOCATING AGAIN SO THEY WERE PUT ON THE HOSPITAL OXYGEN AGAIN. THE PATIENT WAS SENT HOME WITH AN OXYGEN TANK GIVEN. PATIENT HAS SINCE RECEIVED THEIR REPLACEMENT.
Patient problems: Dyspnea
MAUDE report 25846656 ↗
Other Inogen, Inc. products
All Inogen, Inc. devices →Sources and updates
- Models: FDA GUDID, file dated Oct 13, 2026. Models are grouped by the brand name the manufacturer registered.
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 16, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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