Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier Air Purifier: CADR, Noise, Coverage & Specs
Last verified: Aug 23, 2026
Aug 2026
Quick verdict
The Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier is best suited to rooms where published specs can be checked against your space. Buyers should separately evaluate filter cost and maximum-speed noise before deciding.
Consider alternatives if
- You need a verified maximum-speed noise figure
- Filter replacement interval or cost is a deciding factor
Verified strengths
- HEPA filtration (as published)
Verified limitations or missing information
- Maximum-speed noise is not in our sources
- Filter replacement interval is not verified
- Smoke CADR is not published
Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier overview
The Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier is an air purifier. It includes HEPA filtration.
- Claimed coverage
- 1928 sq ft
- Filter type
- HEPA
- Last verified
- Aug 23, 2026
Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier CADR and room size
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 Allergen Plus 3-in-1 HEPA Fan Air Purifier noise level
A model-specific minimum dB figure is not in our sources.
Maximum-speed noise is not in our sources.
Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier filtration
Published filter type: HEPA.
Filter replacement interval is not verified in our sources.
Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier smart features
3-in-1: air purifier, fan, and air circulator, Auto Mode: senses, adjusts, and purifies air automatically, 360-degree rotation, Set & Forget
Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier specifications
- Manufacturer claimed coverage
- 1928 sq ft
- Filter type
- HEPA
About Honeywell air purifiers
Honeywell models in this catalog are compared by CADR, recommended room size, noise, and filter type.
Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier comparisons
- Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier vs Honeywell HEPA Air Purifier
- Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier vs Honeywell HPA125B
- Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier vs Honeywell HPA300
- Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier vs Afloia EUROPA
- Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier vs Afloia Kilo
- Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier vs Aiuzlk P260
What is the CADR of the Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier?
CADR is not published for this model in our sources.
What room size is the Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier suitable for?
Recommended room size cannot be derived because CADR is missing.
How loud is the Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier?
A model-specific minimum dB figure is not in our sources.
Does the Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier have Wi-Fi?
No published Wi-Fi or app control in our sources.
What filter does the Honeywell Allergen Plus 3-in-1 HEPA Fan Air Purifier 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 · Honeywell air purifiers · Best air purifiers for allergies · Methodology