510(k) · Cleared
ClearedWillson One-Fit Healthcare Particle Respirator and Surgical Mask, HC-NB095
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Survivair, Inc. · MSH Respirator, Surgical
Cleared on Mar 2, 2007 as substantially equivalent to K051182 (Inovel, LLC, 2005) and 1 other predicate after a 45-day review. Its family tree reaches back 4 generations to 1992. 5 later devices descend from it.
- Decided
- Mar 2, 2007
- Review
- 45 days
- Class
- Class II
- Product code
- MSH
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 4 generations to K922507 (1992). 5 later devices descend from it, 2 citing it directly.
- Root · 4 generations backK922507 Gerson Isolair Apr Particulate Surgical MaskLouis M. Gerson Co., Inc. · 1992
- 3 generations backK960778 Isolair Apr Type N95Louis M. Gerson Co., Inc. · 1996
- 2 generations backK041855 Pleats Plus N95 Particulate Respirator, Models 1050 and 1050SAearo Co. · 2004
- 1 generation backK051182 Inovel Health Care Model N95 Particulate Respirators and Surgical…Inovel, LLC · 2005 · Recalled
- This deviceK070139 Willson One-Fit Healthcare Particle Respirator and Surgical Mask…Survivair, Inc. · 2007
- Descendant · cites it directly · 3 of its ownK070782 Willson One-Fit Flat-Fold Healthcare Particulate Respirator and…Survivair Respirators, LLC · 2007
- Descendant · 2 generations on · 2 of its ownK081923 Actiprotect UF N95 Respirator, Double Strap, Flat FoldGlaxosmithkline Consumer Healthcare · 2009
- Descendant · cites it directly · 0 of its ownK141876 Pasture F550S Surgical N95 Respirator, Pasture F550CS Surgical N95…Pasture Pharma Pte, Ltd. · 2015
- Descendant · 3 generations on · 0 of its ownK093189 Actiprotect UC N95 RespiratorGlaxosmithkline Consumer Healthcare · 2010
- Descendant · 3 generations on · 0 of its ownK093161 Actiprotect UF N95 RespiratorGlaxosmithkline Consumer Healthcare · 2010
Most influential descendants
Showing 5 of 5 · See all- K070782Willson One-Fit Flat-Fold Healthcare Particulate Respirator and Surgical Mask, Models…Survivair Respirators, LLC · 2007 · cites it directly3descendants
- K081923Actiprotect UF N95 Respirator, Double Strap, Flat FoldGlaxosmithkline Consumer Healthcare · 2009 · 2 generations on2descendants
- K141876Pasture F550S Surgical N95 Respirator, Pasture F550CS Surgical N95 Respirator, Pasture…Pasture Pharma Pte, Ltd. · 2015 · cites it directly0descendants
- K093189Actiprotect UC N95 RespiratorGlaxosmithkline Consumer Healthcare · 2010 · 3 generations on0descendants
- K093161Actiprotect UF N95 RespiratorGlaxosmithkline Consumer Healthcare · 2010 · 3 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K922507 | Gerson Isolair Apr Particulate Surgical Mask | Louis M. Gerson Co., Inc. | 1992 | — |
| −3 | K960778 | Isolair Apr Type N95 | Louis M. Gerson Co., Inc. | 1996 | — |
| −2 | K041855 | Pleats Plus N95 Particulate Respirator, Models 1050 and 1050S | Aearo Co. | 2004 | — |
| −1 | K051182 | Inovel Health Care Model N95 Particulate Respirators and Surgical Masks | Inovel, LLC | 2005 | 1 |
| 0 (this device) | K070139 | Willson One-Fit Healthcare Particle Respirator and Surgical Mask, HC-NB095 | Survivair, Inc. | 2007 | — |
| +1 | K070782 | Willson One-Fit Flat-Fold Healthcare Particulate Respirator and Surgical Mask… | Survivair Respirators, LLC | 2007 | — |
| +2 | K081923 | Actiprotect UF N95 Respirator, Double Strap, Flat Fold | Glaxosmithkline Consumer Healthcare | 2009 | — |
| +1 | K141876 | Pasture F550S Surgical N95 Respirator, Pasture F550CS Surgical N95 Respirator… | Pasture Pharma Pte, Ltd. | 2015 | — |
| +3 | K093189 | Actiprotect UC N95 Respirator | Glaxosmithkline Consumer Healthcare | 2010 | — |
| +3 | K093161 | Actiprotect UF N95 Respirator | Glaxosmithkline Consumer Healthcare | 2010 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2007 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2015 | 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 MSH? 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 MSH device
- #1 K233022 Halyard Fluidshield 3 N95 Particulate Filter…score 6.7 · 1 generation · no Class I recall
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K051182 | Inovel Health Care Model N95 Particulate Respirators and Surgical Masks | 2005 |
| * | K041855 | Pleats Plus N95 Particulate Respirator, Models 1050 and 1050SSummary page 1…th Care's N95 Particulate Respirators and Surgical Masks (KO5 1182) and Aearo Co. Identification of Pleats Plus 1050 and 1050S (K041855). Like the predicates, Predicates and Sum~mary it has been performance tested and passed standardized tests of Substantial… | 2004 |
What descends from it? (5)
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 15 years and passes through 4 companies; a new generation was cleared every 3.5 years on median.
- 1 of the 4 ancestors has a recall of any class.
- Of its descendants, K070782 (Survivair Respirators, LLC, 2007) has gone furthest, with 3 descendants of its own.
- 5 other devices also cite its predicate K051182.
How does its category compare?
All MSH devicesMSH Respirator, Surgical: FDA decisions, review times, recalls and adverse event reports over 20 years. 2007, this device’s year, is highlighted.
FDA decisions per year · MSH
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · MSH
60in 2010
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MSH
1in 2008
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · MSH
10in 2025
MAUDE reports naming product code MSH, 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 | 7 | 78 | 0 | 0 |
| 2008 | 2 | — | 1 | 0 |
| 2009 | 2 | — | 0 | 0 |
| 2010 | 4 | 60 | 0 | 2 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 1 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 1 | — | 0 | 3 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 1 | — | 0 | 2 |
| 2018 | 1 | — | 0 | 4 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 59 |
| 2021 | 0 | — | 0 | 19 |
| 2022 | 0 | — | 0 | 18 |
| 2023 | 0 | — | 0 | 71 |
| 2024 | 1 | — | 0 | 1 |
| 2025 | 0 | — | 0 | 10 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Willson® ONE-FitTM HC-NB095 Healthcare Particulate Respirator and Surgical Mask is a NIOSH-approved N95 single use respirator intended for use by healthcare personnel during medical/surgical procedures to protect both the wearer and the patient by protecting the wearer against the spatter of blood and other potentially infectious materials and reducing the transfer of microorganisms and other airborne particulate matter.
The Willson ONE-Fit also meets the CDC guidelines for TB exposure control within healthcare facilities and is intended for use as an isolation mask.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K070139 · printed Nov 4, 2026
Cite this page
510(k) Report. “K070139: Willson One-Fit Healthcare Particle Respirator and Surgical Mask, HC-NB095.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K070139
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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