510(k) Report

510(k) · Cleared

Cleared

Heated Respiratory Humidifier HC100

K915460510(k) TraditionalCleared Jan 15, 1993408-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

Fisher & Paykel Electronics, Ltd. · BTT Humidifier, Respiratory Gas, (Direct Patient Interface)

Cleared on Jan 15, 1993 after a 408-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 117 later devices descend from it.

Decided
Jan 15, 1993
Review
408 days
Class
Class II
Product code
BTT
Recalls
None
Predicates
0

117 later devices descend from it, 3 citing it directly.

Descendants, by year cleared 2002: 1 descendant cleared1998: 1 descendant cleared2003: 2 descendants cleared2004: 4 descendants cleared2005: 3 descendants cleared2007: 1 descendant cleared2012: 8 descendants cleared2008: 4 descendants cleared2006: 2 descendants cleared2010: 4 descendants cleared2013: 9 descendants cleared2009: 3 descendants cleared2011: 7 descendants cleared2015: 1 descendant cleared2014: 8 descendants cleared2018: 4 descendants cleared2017: 3 descendants cleared2020: 5 descendants cleared2019: 2 descendants cleared2023: 6 descendants cleared2016: 5 descendants cleared2025: 8 descendants cleared2024: 12 descendants cleared2021: 4 descendants cleared2026: 5 descendants cleared2022: 5 descendants cleared1990200020102020
  1. This deviceK915460 Heated Respiratory Humidifier HC100Fisher & Paykel Electronics, Ltd. · 1993
  2. Descendant · cites it directly · 110 of its ownK973161 Cpap Humidifier (HC 200)Fisher & Paykel Electronics, Ltd. · 1998
  3. Descendant · 2 generations on · 98 of its ownK040941 Cpap Humidifier, Model HC234 (and Related Accessories)Fisher & Paykel Healthcare, Ltd. · 2004
  4. Descendant · 3 generations on · 74 of its ownK041900 HC604 Cpap HumidifierFisher & Paykel Healthcare, Ltd. · 2004
  5. Descendant · 4 generations on · 33 of its ownK082605 Vpap Auto with Humidaire 3IResmed, Ltd. · 2009
  6. Descendant · 5 generations on · 31 of its ownK091947 S8 Aspen with H4I PlusResmed, Ltd. · 2009

Showing 5 of 117 descendants. See all descendants

Descendants cleared per year

1998: 12002: 12003: 22004: 42005: 32006: 22007: 12008: 42009: 32010: 42011: 72012: 82013: 92014: 82015: 12016: 52017: 32018: 42019: 22020: 52021: 42022: 52023: 62024: 122025: 82026: 5
1998high 12 (2024) · low 0 (1999)2026

Most influential descendants

Showing 5 of 117 · See all
  • K973161Cpap Humidifier (HC 200)Fisher & Paykel Electronics, Ltd. · 1998 · cites it directly110descendants
  • K040941Cpap Humidifier, Model HC234 (and Related Accessories)Fisher & Paykel Healthcare, Ltd. · 2004 · 2 generations on98descendants
  • K041900HC604 Cpap HumidifierFisher & Paykel Healthcare, Ltd. · 2004 · 3 generations on74descendants
  • K082605Vpap Auto with Humidaire 3IResmed, Ltd. · 2009 · 4 generations on33descendants
  • K091947S8 Aspen with H4I PlusResmed, Ltd. · 2009 · 5 generations on31descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K915460Heated Respiratory Humidifier HC100Fisher & Paykel Electronics, Ltd.1993—
+1K973161Cpap Humidifier (HC 200)Fisher & Paykel Electronics, Ltd.1998—
+2K040941Cpap Humidifier, Model HC234 (and Related Accessories)Fisher & Paykel Healthcare, Ltd.2004—
+3K041900HC604 Cpap HumidifierFisher & Paykel Healthcare, Ltd.2004—
+4K082605Vpap Auto with Humidaire 3IResmed, Ltd.2009—
+5K091947S8 Aspen with H4I PlusResmed, Ltd.2009—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199810
200210
200320
200440
200530
200620
200710
200840
200930
201040
201170
201280
201390
201480
201510
201650
201730
201840
201920
202050
202140
202250
202360
2024120
202580
202650
FIG. 1 — Lineage of K915460, 1993–2026Source: 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), 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
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What was it cleared against?

FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

What descends from it? (117)

See all 117

3 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K973161Cpap Humidifier (HC 200)Fisher & Paykel Electronics, Ltd.1998110
K012633Respironics Heated HumidifierRespironics, Inc.20025
K030090H2 Heated HumidifierRespironics, Inc.20033

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?

  • Of its descendants, K973161 (Fisher & Paykel Electronics, Ltd., 1998) has gone furthest, with 110 descendants of its own.

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—
Cite this page

510(k) Report. “K915460: Heated Respiratory Humidifier HC100.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K915460

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026