FreAire B0HBJ3N8BD Air Purifier: CADR, Noise, Coverage & Specs
Last updated: Aug 23, 2026
Overview
Large‑room air purifier with 2 HEPA filters, smart AQI display, auto and sleep modes, covering up to 2,390 ft².
CADR and room size
CADR (smoke): 559 CFM.
What room size is the FreAire B0HBJ3N8BD suitable for?
Recommended room size based on CADR: about 866 sq ft (CADR × 1.55).
Manufacturer claimed coverage: 2390 sq ft. This claim is higher than 3× CADR, so it is not used for ranking.
Filtration
What filter does it use?
HEPA.
Replacement interval: 19 months.
Noise
How loud is it?
Minimum reported noise: 22 dB.
Smart features
Does it have Wi-Fi?
Yes — app or Wi-Fi features are listed.
H13 HEPA filter, Covers up to 2,390 ft², Smart AQI display, Auto and sleep modes
Specifications
- CADR (smoke)
- 559 CFM
- Recommended room size
- 866 sq ft
- Manufacturer claimed coverage
- 2390 sq ft
- Noise
- 22 dB
- Filter type
- HEPA
- Filter replacement interval
- 19 months
- Power
- 133.5
- Dimensions
- 15D x 25W x 50H inches
- Weight
- 84
- Wi-Fi / app
- Yes
Comparisons
Methodology
Specifications are compiled from manufacturer documentation, product listings and other cited sources. See methodology.