Honeywell HPA300 Air Purifier: CADR, Noise, Coverage & Specs
Quick verdict
The Honeywell HPA300 is best suited to medium rooms where high airflow are priorities. Its 300 CFM smoke CADR supports about 465 sq ft at approximately 4.8 air changes per hour. Buyers should separately evaluate filter cost and maximum-speed noise before deciding.
Best for
- Living rooms and medium bedrooms
Consider alternatives if
- You need a verified maximum-speed noise figure
- Filter replacement interval or cost is a deciding factor
Verified strengths
- 300 CFM smoke CADR (~465 sq ft at ~4.8 ACH)
- 53 dB published minimum noise
- True HEPA filtration (as published)
Verified limitations or missing information
- Maximum-speed noise is not in our sources
- Filter replacement interval is not verified
Honeywell HPA300 overview
The Honeywell HPA300 is a medium-room air purifier with a smoke CADR of 300 CFM. Based on our CADR-based room-size method, it is suitable for approximately 465 sq ft. It includes True HEPA filtration and 53 dB minimum noise.
- Smoke CADR
- 300 CFM
- Recommended room size
- 465 sq ft
- Minimum noise
- 53 dB
- Filter type
- True HEPA
Honeywell HPA300 CADR and room size
Recommended room size is about 465 sq ft (CADR × 1.55). That is approximately 4.8 air changes per hour in a room with an eight-foot ceiling. 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.
Honeywell HPA300 noise level
Published minimum noise is 53 dB.
Maximum-speed noise is not in our sources.
Honeywell HPA300 filtration
Published filter type: True HEPA.
Filter replacement interval is not verified in our sources.
Honeywell HPA300 smart features
filter indicator
Honeywell HPA300 specifications
- CADR (smoke)
- 300 CFM
- CADR (dust)
- 320 CFM
- CADR (pollen)
- 300 CFM
- Recommended room size
- 465 sq ft
- Validated coverage
- 465 sq ft
- Minimum noise
- 53 dB
- Filter type
- True HEPA
About Honeywell air purifiers
Honeywell models in this catalog are compared by CADR, recommended room size, noise, and filter type.
Honeywell HPA300 comparisons
Compared with the Honeywell HPA125B, the Honeywell HPA300 has 20% higher CADR.
What is the CADR of the Honeywell HPA300?
Smoke CADR is 300 CFM.
What room size is the Honeywell HPA300 suitable for?
About 465 sq ft at approximately 4.8 air changes per hour with an eight-foot ceiling.
How loud is the Honeywell HPA300?
Minimum reported noise: 53 dB.
Does the Honeywell HPA300 have Wi-Fi?
No published Wi-Fi or app control in our sources.
What filter does the Honeywell HPA300 use?
True HEPA.
Methodology
Specifications are compiled from manufacturer documentation, product listings and other cited sources.
How we calculate recommended room size.
Sources
All air purifiers · Honeywell air purifiers · Best air purifiers for allergies · Methodology