Why it matters
The Honeywell AllergenPlus HPA304 Air Purifier is a compact / desktop air purifier that its maker rates for 465 square feet.
At the usual 4.8 air changes an hour and an 8-foot ceiling, a 465-square-foot rating implies about 298 cubic feet of clean air a minute. In a 12-by-15-foot bedroom that would turn the air over roughly 12 times an hour.
Filtration: HEPA. Power draw: 80 watts.
Price-wise it sat in the dearest third of the 30 compact / desktop models we cover when we checked; the button shows today's price.
It qualifies for our lists Best Air Purifiers for Allergies, Best Air Purifiers for Kitchens, Best Honeywell filters and air products, where it is ranked against every model that meets the same rule.
Its rated room size of 465 square feet is below the middle of the range we cover: 37 of the 152 purifiers with a stated figure come in lower, and the range runs from 62 square feet to 4,800 square feet.
Compared with the Honeywell HPA5100B Air Purifier: rated room size 465 square feet here vs 900 square feet.
Who it's for, and who should skip it
Good fit if
- Rooms up to about 465 square feet
- Allergy season
Look elsewhere if
- Whole-home filtration on its own
- Removing gases without a substantial carbon stage
Pros and cons
Pros
- Rated for 465 square feet
- 80 watts draw
Cons
- Filters are an ongoing cost
- Size to the room at 4.8 air changes per hour
Limitations to weigh
- Specifications are the maker's or seller's own figures; check fit against your equipment's model number and the actual size.
Specifications
The bracket shows where each figure comes from.
| Model number | HPA104WMP | Retailer |
|---|---|---|
| Room coverage | 465 square feet | Retailer |
| Wattage | 80 watts | Retailer |
| Filter type | HEPA | Retailer |
Alternatives worth comparing
More air purifiers we cover
- Honeywell HPA5100B Air Purifier
- Winix D480 Air Purifier $249.99
- Winix XQ 4 Stage Dual Filtration Smart Wi-Fi True HEPA Air Purifier $609.99
- Dreo DR-HAP003AS Air Purifier
- Austin Air HealthMate B400 Air Purifier
All air purifiers, compared in one table · Every Honeywell product we cover
Final verdict
A sensible choice for rooms up to about 465 square feet. Confirm the model it fits before ordering.
Where to buy
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