Reported Reactions

Devices › Humidifier, respiratory gas, (direct patient interface)

Device brand name · Neptune heated humidifier conchasmart

Hudson RCI: medical device reports filed with FDA

224 reports name it, 1997–2026. Manufacturer given most often on reports: Medline Industries. Product code BTT.

224
device reports naming the brand
0% of all MAUDE reports · about 8 a year
121
reports, 12 months to August 2026
7 in the 12 months before
84.4%
classified as malfunction
96.1% across the product code
1.3%
classified as death, as reported
3 reports · not verified by FDA

FDA's MAUDE database holds 224 reports that name the brand "Hudson RCI" (neptune heated humidifier conchasmart), received between January 1997 and August 2026; the manufacturer given most often on reports is Medline Industries. Spellings of one product vary from report to report.

121 reports arrived in the 12 months to August 2026, up 1629% from 7 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 (84.4%), injury (11.6%) and other (2.2%); across all humidifier, respiratory gas, (direct patient interface) reports (product code BTT) death is recorded in 0.7% and malfunction in 96.1%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are insufficient heating (8%), infusion or flow problem (7.6%) and overheating of device (5.4%). The patient problems coded most often are appropriate clinical signs, symptoms and conditions term/code not available, blister and burn(s). 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

02652Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 12022Jan 2022: 0Feb 2022: 0Mar 2022: 1Apr 2022: 1May 2022: 0Jun 2022: 0Jul 2022: 1Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 2Feb 2023: 1Mar 2023: 1Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 3Aug 2023: 0Sep 2023: 0Oct 2023: 1Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 1Apr 2024: 1May 2024: 2Jun 2024: 1Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 1Dec 2024: 12025Jan 2025: 0Feb 2025: 0Mar 2025: 1Apr 2025: 2May 2025: 2Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 12026Jan 2026: 2Feb 2026: 1Mar 2026: 0Apr 2026: 2May 2026: 40Jun 2026: 8Jul 2026: 15Aug 2026: 52

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

0601201997: 319971998: 52000: 420002001: 102003: 520032006: 42007: 420072008: 42010: 320102011: 52013: 320132018: 102019: 720192020: 72021: 620212022: 32023: 820232024: 72025: 620252026: 120

Event type and report source

Event type, as classified on the report

Death1.3%3
Injury11.6%26
Malfunction84.4%189
Other2.2%5
Not given0.4%1

Who filed the report

Manufacturer report54.5%122
Voluntary report12.1%27
User facility report0%0
Distributor report0%0
Not given33.5%75

Grey bar: all 18,530 reports carrying product code BTT. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Insufficient heating188%2.6%
Infusion or flow problema problem with flow or infusion177.6%0.2%
Overheating of device125.4%1.1%
Loose or intermittent connection114.9%0.3%
Unexpected shutdown73.1%0.4%
Detachment of device or device componentpart of the device came off62.7%2.9%
Fitting problem52.2%0.3%
Fluid/blood leak52.2%5.4%
Smoking52.2%0.2%
Breakthe device broke41.8%4.3%
Sparking41.8%0.1%
Thermal decomposition of device41.8%0.3%
Device alarm system31.3%1.9%
Disconnection31.3%0.9%
Excessive heating31.3%0.1%
Leak/splashthe device leaked31.3%6.2%
Temperature problem31.3%1.3%
Damaged thread20.9%0%
Device emits odor20.9%0.4%
Failure of device to self-test20.9%0.2%

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
Appropriate clinical signs, symptoms and conditions term/code not available10.4%
Blistera blister10.4%
Burn(s)a burn10.4%
Headachehead pain10.4%
Partial thickness (second degree) burn10.4%

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

In context

MeasureHudson RCIProduct code BTTAll MAUDE reports
Reports22418,53026,136,888
Share of that pool—1.2%0%
Classified as death, per 1,000 reports1379
Classified as injury11.6%2.2%36.2%
Classified as malfunction84.4%96.1%62.3%
Filed by the manufacturer54.5%97%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 BTT

BrandReportsLatest 12 monthsClassified as death
Fisher & Paykel Healthcare4,7803,3740.3%
Airvo 2 Humidifier1,97000.6%
Airvo2 Humidifier1,79700.7%
Hudson Concha Neptune1,67900.1%
Vented Autofeed Humidification Chamber80900%
Vented Humidification Chamber49300%
Vented Autofeed Chamber47800%
Adult Inspiratory Heated Breathing Circuit44900.2%
Respiratory Humidifier44801.8%
Optiflow + Adult Nasal Cannula42342.6%
Myairvo Humidifier34800.3%
Fisher and Paykel Healthcare3331340%
Adult Breathing Circuit29200.7%
Adult Dual Heated Breathing Circuit23200%
Autofeed Humidification Chamber21000%

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 Hudson RCI reports

How many FDA reports name Hudson RCI?

224 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 121 in the latest 12 months.

What kinds of events are reported?

malfunction (84.4%), injury (11.6%) and other (2.2%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

insufficient heating (8%), infusion or flow problem (7.6%), overheating of device (5.4%), loose or intermittent connection (4.9%) and unexpected shutdown (3.1%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (54.5%) and voluntary reports (12.1%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Hudson RCI 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.