Details come from the older review, the maker’s claims and the Amazon listing, checked on October 14, 2026. The old model name AP51030K is now sold as the WP500. CADR, noise and filter-cost figures come from the older review and were not retested.
The Whirlpool Whispure is a large-room HEPA air purifier with a plain look and a long record. Here is what it does, what it costs now and what else to compare.
Table of Contents
What You Get
Price on Amazon: $274.49 | 4.5 stars from 312 ratings (checked October 14, 2026)
Design and Size
The Whirlpool Whispure 510 is a big, plain unit. The older review said it looks like a heater. It is 24 inches tall, 20.5 wide and 10 deep, and weighs 25 pounds. Air goes in at the front and out the top, so you can set it close to a wall. It has built-in handles for moving it room to room.
Looking ahead, big plain-looking HEPA purifiers like the Whirlpool Whispure are slowly giving way to sleeker smart models. Makers rename and refresh old designs, and the AP51030K is now sold as the WP500 with an improved control panel. The catch is that price and ratings are split across old and new listings, so a buyer can see a $38 number on one page and $274 on another.
Filters and Features
- Filters. A carbon pre-filter, a true HEPA filter and a carbon layer. HEPA filters catch 99.97 percent of particles at 0.3 microns.
- Fan. Four speeds, plus a turbo setting that cleans fast and is loud.
- Sleep mode. Switches to low for 8 hours, then goes back to the last setting.
- Lights. Two separate filter lights for the HEPA and the pre-filter.
- Care. Replace the HEPA filter once a year. The maker suggests the pre-filter every 3 months, and a 4-pack was about $30 in the older review.
- Energy. Energy Star qualified.
- Warranty. 5 years limited, per the older review.
The risk to watch is the noise. The older review said many buyers had a fan problem on the AP51030K, and that the unit is loud on the top speed. A purifier you turn off because it is loud does nothing. Expect more tower units sold on a big room size and a low price. Check the CADR, run the unit on a medium speed and plan for a filter change once a year.
CADR and Room Size
The older review gave a CADR of 401 for pollen, 325 for dust and 315 for smoke. In a 500 square foot room with an 8 foot ceiling, that is 4,000 cubic feet of air. At 315 CFM, that is about 13 minutes for one full air change, or about 10 minutes at 401. The listing for the new WP500 says 490 square feet. Plan on one air change every 10 to 13 minutes in a room that size. For more on this number, read what CADR means and how to choose the right size air purifier.
Noise and Upkeep
The older review said the unit is quiet on low and loud on high. Use medium by day and low at night. Vacuum the pre-filter every two weeks to make it last. See our air purifier filter replacement cost guide before you buy, since filters are a yearly cost.
Whirlpool vs Other Big-Room Purifiers
The older review pointed to the AirDoctor, the Alen BreatheSmart 75i and the Bissell AIR400 as upgrades. For a similar price, the Coway Mighty has far more ratings. For more large-room options, see air purifiers for 500 square feet. Coverage figures on the Amazon pages above are the makers’ own and use different air-change rates, so compare CADR first.
Prices and Alternatives on Amazon
Prices and ratings were checked on Amazon on October 14, 2026.
Price on Amazon: $274.49 | 4.5 stars from 312 ratings (checked October 14, 2026)
The Whirlpool Whispure WP500 is listed as the new version of the AP51030K with an improved control panel, 490 square feet of filtration, true HEPA and a carbon pre-filter. It has a 4.5 rating from 312 ratings.
Price on Amazon: $229.99 | 4.6 stars from 29,221 ratings (checked October 14, 2026)
The Coway Mighty AP-1512HH is listed for up to 1,748 square feet with an air quality monitor, auto and eco modes and a 3-year warranty. It has a 4.6 rating from over 29,000 ratings.
Price on Amazon: $179.99 | 4.6 stars from 32,412 ratings (checked October 14, 2026)
The Winix 5510 is listed for up to 1,881 square feet in one hour, with true HEPA, a carbon filter and app support. It has a 4.6 rating from over 32,000 ratings.
Price on Amazon: $169.99 | 4.5 stars from 2,572 ratings (checked October 14, 2026)
The Blueair Blue Pure 311i Max is listed for up to 2,107 square feet with Wi-Fi, auto mode and 23 dB quiet filtration. It has a 4.5 rating from over 2,500 ratings.
Pros and Cons
Pros: covers about 500 square feet; high CADR scores; true HEPA filter; four speeds and a sleep mode; two filter lights; Energy Star; long warranty.
Cons: loud on the top speed; plain, heater-like look; filters are a yearly cost; price is split across old and new listings; few ratings on the new listing.
FAQ
Is the Whirlpool AP51030K the same as the WP500?
Amazon lists the WP500 as the new version of the AP51030K with an improved control panel.
How big a room does the Whirlpool 510 cover?
About 500 square feet, per the older review. The new listing says 490.
How often do the filters need changing?
The HEPA filter once a year. The pre-filter every 3 months per the maker, or vacuum it every two weeks.
Is it loud?
It is quiet on low and loud on the top speed, per the older review.
Final Word
The Whirlpool Whispure is a solid, no-frills purifier for a large room. If noise or smart features matter, compare it with the Coway or the Blueair.
What happens next: expect more app-connected, quieter towers rated by CADR and by the room size at 5 air changes an hour. For a big, closed room, a 500 square foot unit still makes sense, as long as you can live with the fan.
Related Guides
Keep going with air purifiers for 500 square feet, what CADR means, air purifier filter replacement cost guide, how to choose the right size air purifier and Coway Mighty review.
