# K251068: KnoxFog Anti-fogging Device

- Pathway: 510(k) (Traditional)
- Applicant: Uv One Hygienics, Inc.
- Decided: Aug 27, 2025 after 142 days
- Product code: OCT (Anti Fog Solution And Accessories, Endoscopy)
- Device class: 2
- Regulation: 21 CFR 876.1500
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K904871 (1991). 17 ancestors in all.
No later device cites it as a predicate yet.
0 of 18 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K163257: VitreOx Anti-fog Solution, Sio2 Nanotech, LLC (2017) Summary page 5.

## Indications for use
The KnoxFog™ Anti-fogging Device is a temporary anti-fog coating and therein inhibits fogging on optical lenses. It is a laparoscopic accessory intended to facilitate intraoperative defogging of laparoscope lenses, thereby maintaining visualization of the surgical site and closed body cavity.

Source page: https://510kreport.com/device/K251068
Methodology: https://510kreport.com/methodology