Reported Reactions

Devices › Ventilator, non-continuous (respirator)

Device brand name · Ventilator non-continuous respirator

REMstar: medical device reports filed with FDA

1,380 reports name it, 2021–2026. Manufacturer given most often on reports: Respironics. Product code BZD.

1,380
device reports naming the brand
0% of all MAUDE reports · about 296 a year
485
reports, 12 months to August 2026
281 in the 12 months before
81%
classified as malfunction
80.7% across the product code
1%
classified as death, as reported
14 reports · not verified by FDA

FDA's MAUDE database holds 1,380 reports that name the brand "REMstar" (ventilator non-continuous respirator), received between November 2021 and August 2026; the manufacturer given most often on reports is Respironics. Spellings of one product vary from report to report.

485 reports arrived in the 12 months to August 2026, up 73% from 281 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (81%), injury (18%) and death (1%); across all ventilator, non-continuous (respirator) reports (product code BZD) death is recorded in 1.5% and malfunction in 80.7%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are degraded (98.6%), contamination (5.9%) and overheating of device (0.9%). The patient problems coded most often are cancer, headache and dizziness. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

0102203Sep 2021: 0Oct 2021: 0Nov 2021: 1Dec 2021: 22022Jan 2022: 7Feb 2022: 7Mar 2022: 4Apr 2022: 13May 2022: 37Jun 2022: 70Jul 2022: 87Aug 2022: 25Sep 2022: 30Oct 2022: 18Nov 2022: 19Dec 2022: 62023Jan 2023: 10Feb 2023: 8Mar 2023: 7Apr 2023: 9May 2023: 11Jun 2023: 6Jul 2023: 3Aug 2023: 7Sep 2023: 8Oct 2023: 5Nov 2023: 6Dec 2023: 72024Jan 2024: 3Feb 2024: 25Mar 2024: 18Apr 2024: 29May 2024: 40Jun 2024: 51Jul 2024: 28Aug 2024: 7Sep 2024: 12Oct 2024: 75Nov 2024: 21Dec 2024: 62025Jan 2025: 22Feb 2025: 82Mar 2025: 41Apr 2025: 2May 2025: 5Jun 2025: 6Jul 2025: 8Aug 2025: 1Sep 2025: 9Oct 2025: 6Nov 2025: 63Dec 2025: 42026Jan 2026: 203Feb 2026: 58Mar 2026: 101Apr 2026: 4May 2026: 3Jun 2026: 10Jul 2026: 16Aug 2026: 8

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

02024032021: 320212022: 32320222023: 8720232024: 31520242025: 24920252026: 4032026

Event type and report source

Event type, as classified on the report

Death1%14
Injury18%248
Malfunction81%1,118
Other0%0
Not given0%0

Who filed the report

Manufacturer report99.9%1,378
Voluntary report0.1%2
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 303,240 reports carrying product code BZD. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Degraded1,36198.6%95.4%
Contamination815.9%4.4%
Overheating of device120.9%0.7%
Thermal decomposition of device60.4%0.2%
Noise, audible40.3%0.1%
Material integrity problema problem with the device material20.1%0.2%
Unraveled material20.1%0%
Decrease in pressure10.1%0%
Defective devicethe device was defective10.1%0%
Device emits odor10.1%0.2%
Failure to deliverthe device did not deliver the dose or item10.1%0%
No pressure10.1%0%
Nonstandard device10.1%0.3%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Cancer1027.4%
Headachehead pain997.2%
Dizzinesslight-headedness or unsteadiness886.4%
Asthmaasthma785.7%
Eye irritationeye irritation543.9%
Respiratory tract infectiona respiratory infection342.5%
Skin inflammation/ irritation332.4%
Nauseafeeling sick292.1%
Vomitingbeing sick241.7%
Inflammationinflammation211.5%
Hypersensitivity/allergic reaction201.4%
Dyspneashortness of breath161.2%
Appropriate clinical signs, symptoms and conditions term/code not available130.9%
Sore throat130.9%
Coughcough110.8%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureREMstarProduct code BZDAll MAUDE reports
Reports1,380303,24026,136,888
Share of that pool—0.5%0%
Classified as death, per 1,000 reports10159
Classified as injury18%17.7%36.2%
Classified as malfunction81%80.7%62.3%
Filed by the manufacturer99.9%99%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code BZD

BrandReportsLatest 12 monthsClassified as death
DreamStation Auto CPAP146,78027,7410.9%
REMstar Auto A-Flex19,6567,0831%
DreamStation Auto BiPAP15,3168711.8%
REMstar Pro C-Flex+14,6434,6891.2%
DreamStation CPAP13,8953362.5%
Philips CPAP Device12,779585.5%
DreamStation CPAP Pro10,7896740.8%
REMstar AutoA-Flex8,6591,7321.1%
REMstar Auto5,0891,4240.9%
BiPAP Auto BiFlex4,4871,3271.4%
DreamStation4,2101,7031.6%
REMstar Plus C-Flex3,6821,5820.8%
Dreamstation Auto3,150380.3%
DreamStation BiPAP Pro3,0491081.9%
REMstar Plus2,5814991.9%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about REMstar reports

How many FDA reports name REMstar?

1,380 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 485 in the latest 12 months.

What kinds of events are reported?

malfunction (81%), injury (18%) and death (1%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

degraded (98.6%), contamination (5.9%), overheating of device (0.9%), thermal decomposition of device (0.4%) and noise, audible (0.3%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.9%) and voluntary reports (0.1%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that REMstar was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.