FDA product code · Anesthesiology
Humidifier, Respiratory, Mask (Direct Patient Interface)
1 FDA decision since 2007. No recall names this code.
Intended to moderate blood pressure in hypertensive patients when they are exposed to the cold. The mask attenuates (moderates) the physiological response, increases in blood pressure, associated with cold exposure, by warming the inhaled air during cold exposure for individuals with hypertension, medicated or non-medicated.
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly Download the data (CSV)
Twenty years of OBN at a glance: how often FDA decides these devices, how long 510(k) reviews take, how often they are recalled, and how many adverse event reports name the code.
FDA decisions per year · OBN
1in 2007
2026 to Oct 25, outlined.
Median 510(k) review, days · OBN
Too few OBN 510(k)s in any year since 2007 to give a median.
Recalls per year · OBN
No recall names OBN since 2007.
Adverse event reports per year · OBN
1in 2021
MAUDE reports naming product code OBN, 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 | 1 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 1 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 1 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
Planning a device in OBN? A 510(k) Report ranks candidate predicates in this code by lineage, citations and recall history, with the review-time outlook.
See the 510(k) ReportRelated product codes
Other codes under 21 CFR 868.5450.