REMstar System One 60 Series REMstar Pro C-Flex+, 60 Series, AURecalls & reported problems

Summary

The FDA's MAUDE database contains 43 adverse event reports that list this exact device (DI 00606959005440), received between Jul 2, 2021 and May 14, 2025 — classified as 5 injuries, 38 malfunctions.

The most frequently reported specific device problem is “Degraded” (42 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, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.

Most reported problems

Recent adverse event reports

The 25 most recent of 43 reports, in the reporter's own words as published by the FDA.

• MalfunctionMay 14, 2025Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE PATIENT ALLEGED NOSE BLEEDS, HEADACHES, PAIN AROUND HEART. THERE WAS NO REPORT OF SERIOUS OR PERMANENT PATIENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Chest Pain; Epistaxis; Headache

  MAUDE report 22018594 ↗
• MalfunctionNov 19, 2024Degraded; Adverse Event Without Identified Device or Use Problem; Degraded; Adverse Event Without Identified Device or Use Problem

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING THAT THE REMSTAR PRO C-FLEX+ DEVICE HAD CAUSED THE DEVELOPMENT OF LUNG CANCER. LYMPH NODES WERE BIOPSIED AND AWAITING RESULTS. THE MANUFACTURER'S INVESTIGATION IS ONGOING. THE DEVICE HAS NOT YET BEEN RETURNED TO THE MANUFACTURER FOR EVALUATION. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Cancer; Fatigue

  MAUDE report 20727183 ↗
• MalfunctionJul 22, 2024Unraveled Material; Unraveled Material

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED DRY HACKING COUGH. THERE WAS NO REPORT OF SERIOUS PATIENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Cough

  MAUDE report 19793182 ↗
• MalfunctionJun 3, 2024Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT HAS ALLEGED VISUALIZATION OF PARTICLES. THERE WAS NO REPORT OF PATIENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 19445564 ↗
• MalfunctionMay 14, 2024Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF PARTICLES IN THE AIR PATH. THE PATIENT ALLEGES FEELING "QUITE UNWELL" AND ALSO ALLEGES TO HAVE NOTICED BLACK PARTICLES AND WAS CONCERNED. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE PATIENT ADDITIONALLY MENTIONED SEEKING REPLACEMENT FOR A RESMED F20 MEDIUM - FULL FACE MASK. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Malaise

  MAUDE report 19310811 ↗
• MalfunctionOct 4, 2023Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF BLACK PARTICLES ON INLINE FILTER. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 17871062 ↗
• MalfunctionAug 10, 2023Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF PARTICLES IN THE AIR PATH. THE PATIENT ALLEGES COUGHING, GAGGING, DRY THROAT. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available; Cough

  MAUDE report 17502051 ↗
• MalfunctionJul 13, 2023Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT HAS ALLEGED TO SEEING SMALL PARTICLES IN THE MASK, BITS OF BLACK FOAM IN THE HUMIDIFIER AND THE FOAM/FILTER IS DISINTEGRATING. THE PATIENT ALLEGES HARM FROM THE DEVICE. THERE WAS NO REPORT OF SERIOUS PATIENT HARM OR INJURY. THERE WAS NO MEDICAL INTERVENTION REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Insufficient Information

  MAUDE report 17317780 ↗
• MalfunctionJan 25, 2023Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF BLACK PARTICLES IN THE TUBING. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 16239947 ↗
• MalfunctionNov 4, 2022Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF BLACK PARTICLES IN THE MASK. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 15736414 ↗
• MalfunctionSep 30, 2022Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF BLACK PARTICLES IN THE TUBING AND MASK. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 15519042 ↗
• MalfunctionSep 13, 2022Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING THE PATIENT IS EXPERIENCING A BURNING IN THE NOSE WHILE USING THE DEVICE. PATIENT ALSO ALLEGED VISUALIZATION OF PARTICLES IN THE HUMIDIFIER. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Burning Sensation

  MAUDE report 15411048 ↗
• MalfunctionAug 22, 2022Degraded; Degraded

  THE MANUFACTURER WAS CONTACTED IN REFERENCE TO THE VOLUNTARY FIELD SAFETY NOTICE / RECALL NOTIFICATION RELATED TO THE SOUND ABATEMENT FOAM IN CERTAIN CPAP, BIPAP, AND MECHANICAL VENTILATOR DEVICES. THE MANUFACTURER RECEIVED INFORMATION ALLEGING VISUALIZATION OF BLACK PARTICLES/DOTS IN THE DEVICE. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. NO MEDICAL INTERVENTION WAS REQUIRED BY THE PATIENT. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 15266889 ↗
• MalfunctionJul 26, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED VISUALIZATION OF BLACK PARTICLES IN THE HUMIDIFIER AND WATER CHAMBER. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 15106176 ↗
• MalfunctionJun 29, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED HEADACHES WHILE USING THE DEVICE. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Headache

  MAUDE report 14852935 ↗
• MalfunctionMay 24, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED LUNG ISSUES WHILE USING THE DEVICE. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Unspecified Respiratory Problem

  MAUDE report 14488069 ↗
• MalfunctionMay 19, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED VISUALIZATION OF BLACK PARTICLES ON MASK. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 14436647 ↗
• MalfunctionMay 11, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED LOW OXYGEN LEVELS, DIZZINESS, AND SERIOUS SKIN ERUPTIONS THAT ARE BREAKING OUT CONSTANTLY WHILE USING THE DEVICE. MEDICAL INTERVENTION WAS NOT SPECIFIED. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Dizziness; Low Oxygen Saturation; Skin Inflammation/ Irritation

  MAUDE report 14360630 ↗
• MalfunctionMay 4, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED COUGH. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Cough

  MAUDE report 14282359 ↗
• MalfunctionMay 4, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED VISUALISATION OF BLACK PARTICLES IN THE WATER TANK . THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 14278180 ↗
• MalfunctionApr 29, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED VISUALIZATION BLACK DEPOSITS FORMING IN MASK. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: No Clinical Signs, Symptoms or Conditions

  MAUDE report 14254496 ↗
• MalfunctionApr 25, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED HUMIDIFIER WAS NOT WORKING AND ALSO ALLEGED TIREDNESS AND HEADACHES . THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Headache

  MAUDE report 14193846 ↗
• MalfunctionApr 25, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED SORE THROAT AND CONSISTENT COUGH . THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THE MANUFACTURER'S INVESTIGATION IS ONGOING. A FOLLOW-UP REPORT WILL BE SUBMITTED WHEN THE MANUFACTURER'S INVESTIGATION IS COMPLETE.

  Patient problems: Cough; Sore Throat

  MAUDE report 14193843 ↗
• MalfunctionApr 20, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO THE CPAP DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED RED BLOTCHES ALL OVER HIS FACE. THERE WAS NO REPORT OF SERIOUS OR PERMANENT PATIENT HARM OR INJURY. THIS ISSUE WAS REPORTED TO THE FDA PER 21 CFR 806. THE DEVICE WILL BE CORRECTED PER RES 88058.

  Patient problems: Rash

  MAUDE report 14161051 ↗
• MalfunctionApr 12, 2022Degraded; Degraded

  THE MANUFACTURER RECEIVED INFORMATION ALLEGING AN ISSUE RELATED TO A CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) DEVICE'S SOUND ABATEMENT FOAM. THE PATIENT ALLEGED VISUALIZATION OF BLACK PARTICLES IN THE HUMIDIFIER AND MASK. PATIENT ALSO ALLEGED AN ODD FEELING IN HIS THROAT. THERE IS NO ALLEGATION OF SERIOUS OR PERMANENT HARM OR INJURY. THIS ISSUE WAS REPORTED TO THE FDA PER 21 CFR 806. THE DEVICE WILL BE CORRECTED PER RES 88058.

  Patient problems: Sore Throat

  MAUDE report 14084496 ↗