# K791307: Unipor Breathing Circuit Filter

- Pathway: 510(k) (Traditional)
- Applicant: Pall Biomedical Products Co.
- Decided: Aug 3, 1979 after 18 days
- Product code: CAH (Filter, Bacterial, Breathing-Circuit)
- Device class: 2
- Regulation: 21 CFR 868.5260
- Recalls of this device: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1 later device descends from it; 1 cites it directly.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K032716: Portex Thermovent Hepa Hme Breathing Filter with CO2 Port (Sterile and Non-Sterile) (2003), 0 descendants of its own

## Recalls of this device
- Jun 4, 2014 · Class II · Z-2038-2014: Possible leak from the filter allowing a small of amount of air to be released from the junction between the filter end cap (flat side of the filter) and the filter housing connection.

Source page: https://510kreport.com/device/K791307
Methodology: https://510kreport.com/methodology