FreAire B0HBJ3N8BD Air Purifier: CADR, Noise, Coverage & Specs
Last verified: Aug 23, 2026
Aug 2026
Quick verdict
The FreAire B0HBJ3N8BD is best suited to large rooms where high airflow, quiet minimum operation, and app control are priorities. Its 559 CFM smoke CADR supports about 866 sq ft at approximately 4.8 air changes per hour. Buyers should separately evaluate maximum-speed noise before deciding.
Best for
- Large open rooms
- Low-noise minimum settings
- App or Wi-Fi control
Consider alternatives if
- You need a verified maximum-speed noise figure
- You are planning around the manufacturer coverage claim rather than CADR-based room size
Verified strengths
- 559 CFM smoke CADR (~866 sq ft at ~4.8 ACH)
- 22 dB published minimum noise
- HEPA filtration (as published)
- Wi-Fi or app control
Verified limitations or missing information
- Maximum-speed noise is not in our sources
FreAire B0HBJ3N8BD overview
The FreAire B0HBJ3N8BD is a large-room air purifier with a smoke CADR of 559 CFM. Based on our CADR-based room-size method, it is suitable for approximately 866 sq ft. It includes HEPA filtration, 22 dB minimum noise, and Wi-Fi or app support.
- Smoke CADR
- 559 CFM
- Recommended room size
- 866 sq ft
- Claimed coverage
- 2390 sq ft
- Minimum noise
- 22 dB
- Filter type
- HEPA
- Wi-Fi / app
- Yes
- Power
- 133.5 W
- Dimensions
- 15D × 25W × 50H in
- Weight
- 84 lb
- Last verified
- Aug 23, 2026
FreAire B0HBJ3N8BD CADR and room size
Recommended room size is about 866 sq ft (CADR × 1.55). That is approximately 4.8 air changes per hour in a room with an eight-foot ceiling. The manufacturer figure of 2390 sq ft corresponds to about 1.8 air changes per hour at the same ceiling height and is shown separately. Our recommended room size uses approximately 4.8 air changes per hour with an eight-foot ceiling. Manufacturer coverage figures may use a lower air-change rate and are shown separately.
The manufacturer coverage claim is higher than 3× CADR, so it is not used for ranking.
FreAire B0HBJ3N8BD noise level
Published minimum noise is 22 dB.
Maximum-speed noise is not in our sources.
FreAire B0HBJ3N8BD filtration
Published filter type: HEPA.
Replacement interval: 19 months.
FreAire B0HBJ3N8BD smart features
H13 HEPA filter, Covers up to 2,390 ft², Smart AQI display, Auto and sleep modes
FreAire B0HBJ3N8BD specifications
- CADR (smoke)
- 559 CFM
- Recommended room size
- 866 sq ft
- Manufacturer claimed coverage
- 2390 sq ft
- Minimum noise
- 22 dB
- Filter type
- HEPA
- Filter replacement interval
- 19 months
- Power
- 133.5 W
- Dimensions
- 15D × 25W × 50H in
- Weight
- 84 lb
- Wi-Fi / app
- Yes
About FreAire air purifiers
FreAire models in this catalog are compared by CADR, recommended room size, noise, and filter type.
FreAire B0HBJ3N8BD comparisons
What is the CADR of the FreAire B0HBJ3N8BD?
Smoke CADR is 559 CFM.
What room size is the FreAire B0HBJ3N8BD suitable for?
About 866 sq ft at approximately 4.8 air changes per hour with an eight-foot ceiling.
How loud is the FreAire B0HBJ3N8BD?
Minimum reported noise: 22 dB.
Does the FreAire B0HBJ3N8BD have Wi-Fi?
Yes — app or Wi-Fi features are listed.
What filter does the FreAire B0HBJ3N8BD use?
HEPA.
Methodology
Specifications are compiled from manufacturer documentation, product listings and other cited sources.
How we calculate recommended room size.
Sources
All air purifiers · FreAire air purifiers · Best air purifiers for allergies · Methodology