FreAire KN-6391RGB Air Purifier: CADR, Noise, Coverage & Specs
Last updated: Aug 22, 2026
Overview
HEPA air purifier with 360° airflow, 20 dB sleep mode, and 3 ambient lights for dust, smoke, pollen, and pet dander removal.
CADR and room size
CADR is not published for this model in our sources.
Filtration
What filter does it use?
Filter type is not confirmed for this model.
Noise
How loud is it?
A model-specific minimum dB figure is not in our sources.
Smart features
Does it have Wi-Fi?
No published Wi-Fi or app control in our sources.
3 ambient lights
Specifications
- Manufacturer claimed coverage
- 1086 sq ft
- Wi-Fi / app
- No
Comparisons
Methodology
Specifications are compiled from manufacturer documentation, product listings and other cited sources. See methodology.