510(k) · Cleared
ClearedVentstream Drug Nebulizer
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Medic-Aid, Ltd. · CAF Nebulizer (Direct Patient Interface)
Cleared on Jan 24, 1994 after a 187-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 13 later devices descend from it.
- Decided
- Jan 24, 1994
- Review
- 187 days
- Class
- Class II
- Product code
- CAF
- Recalls
- None
- Predicates
- 0
13 later devices descend from it, 1 citing it directly.
- This deviceK933535 Ventstream Drug NebulizerMedic-Aid, Ltd. · 1994
- Descendant · cites it directly · 12 of its ownK981772 Halolite Aad SystemMedic-Aid, Ltd. · 1998
- Descendant · 2 generations on · 11 of its ownK991685 Halolite Aad System with Dedicated CompressorMedic-Aid, Ltd. · 1999
- Descendant · 2 generations on · 10 of its ownK030747 Prodose Aad SystemProfile Therapeutics Plc · 2004
- Descendant · 3 generations on · 6 of its ownK042991 I-Neb Aad SystemProfile Therapeutics Plc · 2005
- Descendant · 4 generations on · 4 of its ownK100380 Altera Nebulizer System, Model 678G1002Pari Respiratory Equipment, Inc. · 2010
Showing 5 of 13 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 13 · See all- K981772Halolite Aad SystemMedic-Aid, Ltd. · 1998 · cites it directly12descendants
- K991685Halolite Aad System with Dedicated CompressorMedic-Aid, Ltd. · 1999 · 2 generations on11descendants
- K030747Prodose Aad SystemProfile Therapeutics Plc · 2004 · 2 generations on10descendants
- K042991I-Neb Aad SystemProfile Therapeutics Plc · 2005 · 3 generations on6descendants
- K100380Altera Nebulizer System, Model 678G1002Pari Respiratory Equipment, Inc. · 2010 · 4 generations on4descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K933535 | Ventstream Drug Nebulizer | Medic-Aid, Ltd. | 1994 | — |
| +1 | K981772 | Halolite Aad System | Medic-Aid, Ltd. | 1998 | — |
| +2 | K991685 | Halolite Aad System with Dedicated Compressor | Medic-Aid, Ltd. | 1999 | — |
| +2 | K030747 | Prodose Aad System | Profile Therapeutics Plc | 2004 | — |
| +3 | K042991 | I-Neb Aad System | Profile Therapeutics Plc | 2005 | — |
| +4 | K100380 | Altera Nebulizer System, Model 678G1002 | Pari Respiratory Equipment, Inc. | 2010 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2007 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2015 | 1 | 0 |
| 2017 | 1 | 0 |
| 2023 | 1 | 0 |
| 2025 | 1 | 0 |
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 CAF? 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 CAF device
- #1 K260270 FindAir ONE for pMDI (FAO-MDI-V12-GRE-001)score 13.2 · 7 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
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? (13)
See all 131 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K981772 | Halolite Aad System | 1998 | 12 |
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, K981772 (Medic-Aid, Ltd., 1998) has gone furthest, with 12 descendants of its own.
How does its category compare?
All CAF devicesCAF Nebulizer (Direct Patient Interface): FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · CAF
7in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · CAF
211in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CAF
1in 2018
Class I (13 since 2007) Class II/III not classified
Adverse event reports per year · CAF
191in 2025
MAUDE reports naming product code CAF, 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 | 18 | 98 | 1 | 26 |
| 2008 | 12 | 123 | 0 | 11 |
| 2009 | 8 | 163 | 0 | 15 |
| 2010 | 10 | 114 | 0 | 37 |
| 2011 | 10 | 157 | 1 | 237 |
| 2012 | 9 | 126 | 0 | 138 |
| 2013 | 9 | 238 | 0 | 217 |
| 2014 | 9 | 151 | 5 | 123 |
| 2015 | 8 | 186 | 3 | 166 |
| 2016 | 5 | 186 | 1 | 201 |
| 2017 | 8 | 253 | 14 (13) | 256 |
| 2018 | 9 | 161 | 1 | 162 |
| 2019 | 3 | 266 | 0 | 185 |
| 2020 | 6 | 219 | 0 | 117 |
| 2021 | 8 | 324 | 0 | 161 |
| 2022 | 4 | 176 | 0 | 55 |
| 2023 | 8 | 279 | 0 | 107 |
| 2024 | 4 | 251 | 0 | 102 |
| 2025 | 7 | 211 | 0 | 191 |
| 2026 | 2 | — | 0 | — |
https://510kreport.com/device/K933535 · printed Nov 5, 2026
Cite this page
510(k) Report. “K933535: Ventstream Drug Nebulizer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K933535
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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