510(k) · Cleared
Recalled · 2007Mobile Oxygen Storage Tank (Most)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Pacific Consolidated Industries Llp · CAW Generator, Oxygen, Portable
Cleared on Apr 30, 2004 as substantially equivalent to K020330 (Pacific Consolidated Industries Llp, 2002) and 1 other predicate after a 39-day review. Its family tree reaches back 5 generations to 1994. 2 later devices descend from it. It has been recalled once.
- Decided
- Apr 30, 2004
- Review
- 39 days
- Class
- Class II
- Product code
- CAW
- Recalls
- 1
- Predicates
- 2
Its longest line of descent runs back 5 generations to K933081 (1994). 10 ancestors in all, the oldest K904087 (1990). 2 later devices descend from it, 1 citing it directly.
- Root · 5 generations backK933081 Oxlife Oxygen ConcentratorOxlife, Inc. · 1994
- 4 generations backK955549 Oxlife Oxygen ConcentratorsOxlife, Inc. · 1996
- 3 generations backK011844 Merits Health Products Oxygen ConcentratorsMerits Health Products., Inc. · 2001
- 2 generations backK014078 ON Site Gas Systems Portable Oxygen Generator SystemOn Site Gas Systems, Inc. · 2002
- 1 generation backK020330 Deployable Oxygen Concentration System (Docs)Pacific Consolidated Industries Llp · 2002
- This deviceK040738 Mobile Oxygen Storage Tank (Most)Pacific Consolidated Industries Llp · 2004
- Descendant · cites it directly · 1 of its ownK061414 Expeditionary Delployable Oxygen Concentration System (Edocs)…Pacific Consolidated Industries, LLC · 2007 · Recalled
- Descendant · 2 generations on · 0 of its ownK100957 Deployable Oxygen Concentration System (Docs), Model 66, Deployable…Pacific Consolidated Industries, LLC · 2011
Most influential descendants
Showing 2 of 2 · See all- K061414Expeditionary Delployable Oxygen Concentration System (Edocs), Models 120B and 30;Mobile…Pacific Consolidated Industries, LLC · 2007 · cites it directly1descendant
- K100957Deployable Oxygen Concentration System (Docs), Model 66, Deployable Oxygen CeoncentrationPacific Consolidated Industries, LLC · 2011 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K933081 | Oxlife Oxygen Concentrator | Oxlife, Inc. | 1994 | — |
| −4 | K955549 | Oxlife Oxygen Concentrators | Oxlife, Inc. | 1996 | — |
| −3 | K011844 | Merits Health Products Oxygen Concentrators | Merits Health Products., Inc. | 2001 | — |
| −2 | K014078 | ON Site Gas Systems Portable Oxygen Generator System | On Site Gas Systems, Inc. | 2002 | — |
| −1 | K020330 | Deployable Oxygen Concentration System (Docs) | Pacific Consolidated Industries Llp | 2002 | — |
| 0 (this device) | K040738 | Mobile Oxygen Storage Tank (Most) | Pacific Consolidated Industries Llp | 2004 | — |
| +1 | K061414 | Expeditionary Delployable Oxygen Concentration System (Edocs), Models 120B and… | Pacific Consolidated Industries, LLC | 2007 | 1 |
| +2 | K100957 | Deployable Oxygen Concentration System (Docs), Model 66, Deployable Oxygen… | Pacific Consolidated Industries, LLC | 2011 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1990 | 1 | 0 |
| 1997 | 2 | 0 |
| 2001 | 2 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2007 | 1 | 0 |
| 2011 | 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 CAW? 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 CAW device
- #1 K230052 Inogen Rove 6score 29.9 · 2 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
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 |
|---|---|---|---|
| * | K020330 | Deployable Oxygen Concentration System (Docs)Summary page 2…k (MOST) Predicate Legally Marketed Device Equivalence Substantial equivalence is claimed to the following legally marketed predicate devices: K020330 - Deployable Oxygen Concentration System (DOCS) K003939 - Venture IOH 200 Home Fill II Complete Home Oxygen System by… | 2002 |
| * | K003939 | Venture Home Fill II, Model Ioh 200Summary page 2…quivalence Substantial equivalence is claimed to the following legally marketed predicate devices: K020330 - Deployable Oxygen Concentration System (DOCS) K003939 - Venture IOH 200 Home Fill II Complete Home Oxygen System by Invacare Corporation Both the DOCS and the Home Fill device… | 2001 |
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K061414 | Expeditionary Delployable Oxygen Concentration System (Edocs), Models 120B and 30;Mobile… | 2007 | 1 |
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Sep 8, 2007 | Not classified | Z-2201-2008 | Vendor change control | The recall was initiated after the firm received two customer complaints of ruptured bourdon tubes that had resulted in bellowed out face gauges. With one unit the operator was able to shut off the oxygen flow, however one rupture… |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 10 years and passes through 4 companies; a new generation was cleared every 1.4 years on median.
- 1 of the 10 ancestors has a recall of any class.
- Of its descendants, K061414 (Pacific Consolidated Industries, LLC, 2007) has gone furthest, with 1 descendant of its own.
- 4 other devices also cite its predicate K020330.
How does its category compare?
All CAW devicesCAW Generator, Oxygen, Portable: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · CAW
12in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · CAW
178in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CAW
1in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · CAW
611in 2025
MAUDE reports naming product code CAW, 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 | 6 | 143 | 1 | 23 |
| 2008 | 11 | 90 | 3 | 25 |
| 2009 | 8 | 193 | 2 | 43 |
| 2010 | 5 | 133 | 0 | 48 |
| 2011 | 6 | 174 | 1 | 167 |
| 2012 | 5 | 148 | 0 | 395 |
| 2013 | 2 | — | 2 | 2,309 |
| 2014 | 6 | 277 | 2 | 24,538 |
| 2015 | 1 | — | 0 | 18,973 |
| 2016 | 1 | — | 1 | 3,167 |
| 2017 | 1 | — | 1 | 107 |
| 2018 | 3 | 203 | 0 | 116 |
| 2019 | 2 | — | 2 | 120 |
| 2020 | 5 | 224 | 1 | 125 |
| 2021 | 2 | — | 0 | 194 |
| 2022 | 4 | 458 | 2 | 305 |
| 2023 | 8 | 261 | 0 | 357 |
| 2024 | 2 | — | 5 (1) | 450 |
| 2025 | 12 | 178 | 1 | 611 |
| 2026 | 6 | 260 | 0 | — |
What is it indicated for?
The Mobile Oxygen Storage Tank (MOST) is intended to provide 93% oxygen at 50 psig nominal pressure for supplemental oxygen use only. The MOST is intended to be filled from the Expeditionary Deployable Oxygen Concentration System (E-DOCS) only. The MOST is intended for military use only.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K040738 · printed Nov 5, 2026
Cite this page
510(k) Report. “K040738: Mobile Oxygen Storage Tank (Most).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K040738
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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