510(k) · Cleared
ClearedEson Nasal Mask
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Fisher & Paykel Healthcare Limited · BZD Ventilator, Non-Continuous (Respirator)
Cleared on Oct 2, 2012 as substantially equivalent to K083832 (Fisher & Paykel Healthcare, Ltd., 2009) after a 124-day review. Its family tree reaches back 8 generations to 1995. 4 later devices descend from it.
- Decided
- Oct 2, 2012
- Review
- 124 days
- Class
- Class II
- Product code
- BZD
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 8 generations to K952292 (1995). 28 ancestors in all, the oldest K900164 (1990). 4 later devices descend from it, 2 citing it directly.
- Root · 8 generations backK952292 Puritan-Bennett Companion Nasal Cpap SystemPuritan Bennett Corp. · 1995
- 7 generations backK961626 Solo Cpap SystemRespironics, Inc. · 1996
- 6 generations backK973161 Cpap Humidifier (HC 200)Fisher & Paykel Electronics, Ltd. · 1998
- 5 generations backK040941 Cpap Humidifier, Model HC234 (and Related Accessories)Fisher & Paykel Healthcare, Ltd. · 2004
- 4 generations backK050904 Cpap Humidifier, Model HC238JHUFisher & Paykel Healthcare, Ltd. · 2005
- 3 generations backK063036 Opus HC482 Direct Nasal MaskFisher & Paykel Healthcare, Ltd. · 2006
- 2 generations backK080209 Fisher and Paykel Healthcare Zest Nasal MaskFisher & Paykel Healthcare, Ltd. · 2008
- 1 generation backK083832 Zest Nasal MaskFisher & Paykel Healthcare, Ltd. · 2009
- This deviceK121597 Eson Nasal MaskFisher & Paykel Healthcare Limited · 2012
- Descendant · cites it directly · 2 of its ownK130328 F&P Simplus Full Face MaskFisher & Paykel Healthcare Limited · 2013
- Descendant · 2 generations on · 1 of its ownK190713 F&P Vitera Mask Full Face A Model (Small, Medium, Large), F&P Vitera…Fisher & Paykel Healthcare, Ltd. · 2019
- Descendant · 3 generations on · 0 of its ownK212371 F&P Evora Full Face MaskFisher & Paykel Healthcare, Ltd. · 2022
- Descendant · cites it directly · 0 of its ownK153505 F&P Eson 2 Nasal MaskFisher & Paykel Healthcare Limited · 2016
Most influential descendants
Showing 4 of 4 · See all- K130328F&P Simplus Full Face MaskFisher & Paykel Healthcare Limited · 2013 · cites it directly2descendants
- K190713F&P Vitera Mask Full Face A Model (Small, Medium, Large), F&P Vitera Mask Full Face…Fisher & Paykel Healthcare, Ltd. · 2019 · 2 generations on1descendant
- K212371F&P Evora Full Face MaskFisher & Paykel Healthcare, Ltd. · 2022 · 3 generations on0descendants
- K153505F&P Eson 2 Nasal MaskFisher & Paykel Healthcare Limited · 2016 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K952292 | Puritan-Bennett Companion Nasal Cpap System | Puritan Bennett Corp. | 1995 | — |
| −7 | K961626 | Solo Cpap System | Respironics, Inc. | 1996 | — |
| −6 | K973161 | Cpap Humidifier (HC 200) | Fisher & Paykel Electronics, Ltd. | 1998 | — |
| −5 | K040941 | Cpap Humidifier, Model HC234 (and Related Accessories) | Fisher & Paykel Healthcare, Ltd. | 2004 | — |
| −4 | K050904 | Cpap Humidifier, Model HC238JHU | Fisher & Paykel Healthcare, Ltd. | 2005 | — |
| −3 | K063036 | Opus HC482 Direct Nasal Mask | Fisher & Paykel Healthcare, Ltd. | 2006 | — |
| −2 | K080209 | Fisher and Paykel Healthcare Zest Nasal Mask | Fisher & Paykel Healthcare, Ltd. | 2008 | — |
| −1 | K083832 | Zest Nasal Mask | Fisher & Paykel Healthcare, Ltd. | 2009 | — |
| 0 (this device) | K121597 | Eson Nasal Mask | Fisher & Paykel Healthcare Limited | 2012 | — |
| +1 | K130328 | F&P Simplus Full Face Mask | Fisher & Paykel Healthcare Limited | 2013 | — |
| +2 | K190713 | F&P Vitera Mask Full Face A Model (Small, Medium, Large), F&P Vitera Mask Full… | Fisher & Paykel Healthcare, Ltd. | 2019 | — |
| +3 | K212371 | F&P Evora Full Face Mask | Fisher & Paykel Healthcare, Ltd. | 2022 | — |
| +1 | K153505 | F&P Eson 2 Nasal Mask | Fisher & Paykel Healthcare Limited | 2016 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1990 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1996 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 0 |
| 2003 | 4 | 0 |
| 2004 | 3 | 0 |
| 2006 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2013 | 1 | 0 |
| 2016 | 1 | 0 |
| 2019 | 1 | 0 |
| 2022 | 1 | 0 |
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 BZD? 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 BZD device
- #1 K250624 myAirscore 15.7 · 12 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K083832 | Zest Nasal MaskSummary page 1…Nasal Mask Classification Name Non continuous ventilator IPPB (21 CFR § 868.5905, product code 820D) Predicate Devices K083832 Fisher & Paykel Healthcare Zest Nasal Mask… | 2009 |
What descends from it? (4)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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?
- The line of descent spans 17 years and passes through 5 companies; a new generation was cleared every 1.7 years on median.
- 3 of the 28 ancestors have a recall of any class.
- Of its descendants, K130328 (Fisher & Paykel Healthcare Limited, 2013) has gone furthest, with 2 descendants of its own.
- 2 other devices also cite its predicate K083832.
How does its category compare?
All BZD devicesBZD Ventilator, Non-Continuous (Respirator): FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.
FDA decisions per year · BZD
7in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · BZD
189in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · BZD
8in 2023
Class I (13 since 2007) Class II/III not classified
Adverse event reports per year · BZD
60,279in 2025
MAUDE reports naming product code BZD, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 21 | 83 | 29 | 65 |
| 2008 | 17 | 108 | 2 | 67 |
| 2009 | 23 | 90 | 1 | 147 |
| 2010 | 12 | 122 | 0 | 143 |
| 2011 | 23 | 125 | 1 | 189 |
| 2012 | 21 | 133 | 0 | 139 |
| 2013 | 23 | 127 | 0 | 82 |
| 2014 | 14 | 172 | 0 | 86 |
| 2015 | 11 | 224 | 0 | 114 |
| 2016 | 12 | 217 | 0 | 118 |
| 2017 | 5 | 221 | 0 | 148 |
| 2018 | 5 | 280 | 0 | 101 |
| 2019 | 6 | 231 | 4 (4) | 188 |
| 2020 | 6 | 137 | 0 | 126 |
| 2021 | 6 | 192 | 0 | 6,066 |
| 2022 | 4 | 253 | 0 | 90,768 |
| 2023 | 5 | 204 | 8 (7) | 27,987 |
| 2024 | 10 | 132 | 0 | 68,262 |
| 2025 | 7 | 189 | 0 | 60,279 |
| 2026 | 10 | 214 | 2 (2) | — |
What is it indicated for?
The F&P Eson Nasal Mask is intended to be used by individuals who have been diagnosed by a physician as requiring CPAP or Bi-Level Ventilator treatment. The F&P Eson Nasal Mask is intended for single-patient adult use in the home and multiple-patient adult use in the hospital or other clinical setting where proper disinfection of the device can occur between patient uses.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K121597 · printed Nov 5, 2026
Cite this page
510(k) Report. “K121597: Eson Nasal Mask.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K121597
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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