Why it matters
The Whirlpool WP500 Whispure HEPA Air Purifier (WP500B) is a HEPA room unit air purifier that its maker rates for 490 sq ft, with a smoke CADR of 315.0 CFM.
At the usual 4.8 air changes an hour and an 8-foot ceiling, a 490-square-foot rating implies about 314 cubic feet of clean air a minute. In a 12-by-15-foot bedroom that would turn the air over roughly 13 times an hour.
Filtration: True Medical-Grade HEPA Filter. Quietest setting, per the maker: 49 dB (max). Power draw: 110 W.
Price-wise it sat in the middle third of the 74 hepa room unit 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 Wildfire Smoke, Best Air Purifiers for Kitchens, where it is ranked against every model that meets the same rule.
Its rated room size of 490 square feet is below the middle of the range we cover: 38 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 Whirlpool WPPRO2000 Whispure HEPA Air Purifier (WPPRO2000B): rated room size 490 sq ft here vs 508 sq ft; smoke CADR 315.0 CFM here vs 328.0 CFM; power draw 110 W here vs 115 W.
Warranty, per the maker: 5-Year Limited Warranty.
Who it's for, and who should skip it
Good fit if
- Rooms up to about 490 sq ft
- Allergy season
Look elsewhere if
- Whole-home filtration on its own
- Removing gases without a substantial carbon stage
Pros and cons
Pros
- Rated for 490 sq ft
- Smoke CADR 315.0 CFM
- Low setting 49 dB (max)
- 110 W 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.
| Price | $264.99 | Retailer |
|---|---|---|
| Model number | WP500B | Retailer |
| Room coverage | 490 sq ft | Retailer |
| CADR (smoke) | 315.0 CFM | Retailer |
| CADR (dust) | 328.5 | Retailer |
| CADR (pollen) | 331.7 | Retailer |
| Wattage | 110 W | Retailer |
| Noise (seller) | 49 dB (max) | Retailer |
| Airflow | 401.0 CFM | Retailer |
| Filter type | True Medical-Grade HEPA Filter | Retailer |
| Voltage | 110-120 V | Retailer |
| Warranty | 5-Year Limited Warranty | Retailer |
Alternatives worth comparing
More air purifiers we cover
- IQAir HealthPro Plus XE Air Purifier
- Honeywell HPA5300B Air Purifier
- Airpura I600 Air Purifier (I600 - White) $899.98
- Honeywell HHT-270W Air Purifier
- MOOKA D02L Air Purifier
All air purifiers, compared in one table · Every Whirlpool product we cover
Final verdict
A practical choice for rooms up to about 490 sq ft. Confirm the model it fits before ordering.
Where to buy
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