# K211507: Airdog X5 Recirculating Air Cleaner (model KJ300F-X5)

- Pathway: 510(k) (Traditional)
- Applicant: Beiang Air Tech, Ltd.
- Decided: Nov 22, 2022 after 557 days
- Product code: FRF (Cleaner, Air, Medical Recirculating)
- Device class: 2
- Regulation: 21 CFR 880.5045
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K972064 (1997). 3 ancestors in all.
1 later device descends from it; 1 cites it directly.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K200321: Novaerus NV1050, Novaerus Us, Inc. (2020) Summary page 5.

## Most influential descendants
- K240696: Airdog X8 Air Purifier (KJ800F-X8) (2024), 0 descendants of its own

## Indications for use
The Airdog is a mobile air cleaner intended to be used to remove particles from the air for medical purposes. The device is intended for indoor use only. The Airdog has been demonstrated to effectively inactivate H3N2 and reduce Staphylococcus albus by 4 log with L4 speed.

Source page: https://510kreport.com/device/K211507
Methodology: https://510kreport.com/methodology