510(k) Report

510(k) · Cleared

Cleared

Remrest Heated Humidifier

K050990510(k) TraditionalCleared May 2, 200513-day reviewClass II21 CFR 868.5450

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

Medical Industries America, Inc. · BTT Humidifier, Respiratory Gas, (Direct Patient Interface)

Cleared on May 2, 2005 as substantially equivalent to K003973 (Fisher & Paykel Healthcare, Ltd., 2001) and 1 other predicate after a 13-day review. Its family tree reaches back 1 generation to 2001.

Decided
May 2, 2005
Review
13 days
Class
Class II
Product code
BTT
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K010263 (2001). 2 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by year cleared 2001: 1 other ancestorK010263 · Remstar Plus Cpap System · Respironics, Inc. · 2001 · recalled2000200220042006
Other ancestors, by generation 1 generation back: 1 other ancestor K010263 · Remstar Plus Cpap System · Respironics, Inc. · 2001 · recalled0
  1. Root · 1 generation backK010263 Remstar Plus Cpap SystemRespironics, Inc. · 2001 · Recalled
  2. This deviceK050990 Remrest Heated HumidifierMedical Industries America, Inc. · 2005
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K010263Remstar Plus Cpap SystemRespironics, Inc.20013
0 (this device)K050990Remrest Heated HumidifierMedical Industries America, Inc.2005—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200110
FIG. 1 — Lineage of K050990, 2001–2005Source: 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
*K003973Respiratory Humidifier, Model HC150
Summary page 1
…ory Gas (Direct Patient Interface) Predicate Devices: Respironics - RemnStar - KO 10263 Fisher & Paykel - tIC ISO - K003973 Device Description: The RemRest Heated I lumuidifier is a simple heated humidifier to be used with a CPAP device to provide hea…
Fisher & Paykel Healthcare, Ltd.2001—
*K010263Remstar Plus Cpap System
Summary page 2
…or patients requiring Continuous Positive Respironics - RemStar with Airway Pressure (CPAP) therapy for the humidifier - K010263 treatment of Obstructive Sleep Apnea. The addition of heated humidification to…
Respironics, Inc.20013

Also cleared against K003973: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

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

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • 1 of the 2 ancestors has a recall of any class.
  • 1 other device also cites its predicate K003973.

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?

The [vo Heated Humidifier is intended to warm and add

moisture to the breathing gases for administration to a

patient. It is used for patients requiring Continuous

Positive Airway Pressure (CPAP) therapy for the treatment

of Obstructive Sleep Apnea. The addition of heated

humidification to tfis therapy relieves the drying and

irritating effects on the patient airways, which may arise

from the use of a CPAP system. Use only with RemiRest

900 series CPAP devices.

It is portable and is intended to be used in the home,

hospital, and institutional settings.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K050990: Remrest Heated Humidifier.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K050990

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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