510(k) Report

510(k) · Cleared

Recalled · 2007

Porous Media Humidiflow Humidifier for Universal Humidification

K062091510(k) TraditionalCleared Aug 8, 200615-day reviewClass II21 CFR 868.5450Recalls 1

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Porous Media Corp. · BTT Humidifier, Respiratory Gas, (Direct Patient Interface)

Cleared on Aug 8, 2006 as substantially equivalent to K991484 (Allegiance Healthcare Corp., 1999) after a 15-day review. Its family tree reaches back 1 generation to 1999. It has been recalled once.

Decided
Aug 8, 2006
Review
15 days
Class
Class II
Product code
BTT
Recalls
1
Predicates
1

Its longest line of descent runs back 1 generation to K991484 (1999). No later device cites it as a predicate yet.

  1. Root · 1 generation backK991484 Airlife Bubble Humidifer, Model 002003 and 002006Allegiance Healthcare Corp. · 1999
  2. This deviceK062091 Porous Media Humidiflow Humidifier for Universal HumidificationPorous Media Corp. · 2006
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K991484Airlife Bubble Humidifer, Model 002003 and 002006Allegiance Healthcare Corp.1999—
0 (this device)K062091Porous Media Humidiflow Humidifier for Universal HumidificationPorous Media Corp.2006—
FIG. 1 — Lineage of K062091, 1999–2006Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in BTT? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new BTT device

  1. #1 K222197 F&P Optiflow Junior 2/2+ Nasal Cannula…score 16.8 · 10 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (2)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K991484Airlife Bubble Humidifer, Model 002003 and 002006
Summary page 1
…ty to the patient gas. PREDICATE DEVICE The Porous Media HUMIDIFLOW™ is substantially equivalent to the Allegiance bubble humidifier (subject of premarket notification K991484) and Salter Labs’ bubbler (part number REF 7600) which has been on the market prior to 1976. PERFORMANCE TESTING Performance ch…
Allegiance Healthcare Corp.1999—
*—Salter Labs’ bubbler (part number REF 7600)
Named without a submission number
—
†K053388Model 840 Ventilator with Proportional Assist Ventilation Plus Software OptionPuritan Bennett Corp.2006Class I
†K043006Millennium M10 Oxygen Concentrator, Model M10600; with Opi, Model M10605Respironics, Inc.2005—

Also cleared against K991484: 2 other devices →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Apr 26, 2007Not classifiedZ-0935-2007OtherThe Intake filter of the Humidiflow kits may became detached from the module and fall onto the compressor cooling fan during patient treatment. (If the filter were to come in contact with the fan blades this could stop the fan from…

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Its one ancestor has no recall.
  • 2 other devices also cite its predicate K991484.

How does its category compare?

All BTT devices

BTT Humidifier, Respiratory Gas, (Direct Patient Interface): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · BTT

4in 2025

2007: 62008: 42009: 12010: 42011: 32012: 22013: 62014: 72015: 12016: 32017: 32018: 22019: 12020: 22021: 22022: 32023: 72024: 72025: 42026 (partial year): 4
2007high 7 (2014) · low 1 (2009)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · BTT

104in 2025

2007: 73 days median2008: 199 days median2010: 113 days median2011: 116 days median2013: 171 days median2014: 231 days median2016: 157 days median2017: 303 days median2022: 290 days median2023: 258 days median2024: 219 days median2025: 104 days median2026 (partial year): 184 days median
2007high 303 (2017) · low 73 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · BTT

1in 2025

2007: 12008: 12010: 22011: 12014: 5, 4 Class I2025: 12026 (partial year): 1
2007high 5 (2014) · low 0 (2009)2026

Class I (4 since 2007) Class II/III not classified

Adverse event reports per year · BTT

1,743in 2025

2007: 3652008: 4562009: 5582010: 5622011: 6652012: 5832013: 7182014: 7182015: 6702016: 1,0942017: 1,0072018: 9182019: 8942020: 1,1882021: 1,5102022: 7492023: 7162024: 5012025: 1,743
2007high 1,743 (2025) · low 365 (2007)2025

MAUDE reports naming product code BTT, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20076731365
200841991456
20091—0558
201041132562
201131161665
20122—0583
201361710718
201472315 (4)718
20151—0670
2016315701,094
2017330301,007
20182—0918
20191—0894
20202—01,188
20212—01,510
202232900749
202372580716
202472190501
2025410411,743
202641841—

What is it indicated for?

Humidifiers are defined as a device that is intended to add moisture to the breathing gases for administration to a patient.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K062091: Porous Media Humidiflow Humidifier for Universal Humidification.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K062091

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026