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Whirlpool Whispure True HEPA AP450 Air Purifier

Whirlpool Whispure True HEPA AP450 Air Purifier

SKU: 973-0450

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The Whirlpool Whispure AP450 True HEPA Air Purifier is our most popular model with customers because it delivers the cleanest air per minute for the money. With an AHAM‐Certified clean air delivery rate (CADR) of 315, the Whispure 450 delivers certifiably clean air in rooms up to 490 square feet. Like all Whirlpools, the Whispure 450 is Energy Star® rated for even more savings.

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MSRP: $312.00
Sale Price: $249.00

In Stock - Usually ships
in 24 to 48 hours

Delivering the most clean air per minute for the money, has made the The Whirlpool® Whispure™ AP450 True HEPA Air Purifier ‐ Model AP45030K our most popular unit. With an AHAM Certified¹ clean air delivery rate (CADR) that matches the larger Whispure 510 for dust and smoke, plus an excellent rating for pollen, you can be assured the Whispure 450 delivers certifiably clean air in rooms up to 490 square feet. Plus, its Energy Star® efficiency translates into more energy savings for you. While its price might be for the budget minded, you would need a much more expensive machine to match the cleaning power of the Whispure 450!

The Whispure 450 blends Whirlpool's expertise in home appliances with True HEPA filtration and sound-reducing technology. The True HEPA filter removes 99.97% of particles to 0.3 microns, with less air flow resistance to reduce noise, and less power consumption to lower energy bills. The activated charcoal pre-filter further removes odors and gases to keep air fresh while protecting the life of the HEPA. The Whispure 450 features 3 fan settings to purify air…and to control noise levels. The unit runs very quietly on low and medium settings. Although somewhat louder on high, the Whispure 450 is still only about half as loud as comparable brands.

Designed to blend inconspicuously into your home décor, the Whispure 450 works anywhere, even against a wall. The unit's modest but good-looking control panel is loved by customers wanting attractive simplicity. Intelligently designed with a large open face for air intake and top air output for maximum delivery of filtered air, you will be amazed at just how much clean air the Whispure 450 produces.

Filter maintenance is a breeze with the Whirlpool 450. Filter monitor lights conveniently signal the need for HEPA and pre-filter changes through the easily accessible front panel. Under normal conditions, the pre-filter will need replacement every 3 months, and the HEPA filter once a year.  5-Year Mfr. Limited Warranty.


  • AHAM Certified¹ to provide clean air in rooms up to 490 sq. ft. (4.8 air changes per hour)
  • Helps reduce exposure to particulates that cause allergic reaction or respiratory distress
  • Doctor-recommended True HEPA filter captures 99.97% of particles to 0.3 microns
  • HEPA is sealed along back and sides to prevent particles from escaping
  • Activated carbon pre-filter traps gases, odors and smoke
  • Air intake and output design maximizes delivery of filtered air
  • Can be placed flush against a wall for minimal disruption to floor plan and lifestyle
  • Attractive rotary dial and filter reset button provide easy control
  • 3 fan speeds (low, medium, high)
  • Very quiet operation
  • "Change filter" LED lights for HEPA and pre-filter
  • Easy filter changes ‐ 2 pushbuttons open front cover ‐ filters just lift out
  • Compact, slim design ‐ 22"x17.8"x11.5", 22.3 lbs
  • Integrated side grips for easy moving
  • Ozone free
  • Energy Star®


¹ This Whirlpool air purifier is certified by the Association of Home Appliance Manufacturers (AHAM) for the Clean Air Delivery Rate (CADR) that has been assigned to the unit. AHAM's Portable Electric Room Air Cleaner Verification Program provides assurance to the public, through the presence of the AHAM Verification Seal, that the manufacturer's claimed CADR ratings have been independently verified in accordance with ANSI/AHAM Standard AC-1.

Whirlpool products are subject to Minimum Advertised Pricing (MAP).


The Whispure 450 may be one of Whirlpool's best kept secrets. With a CADR rating that nearly matches the Whispure 510, and clean air delivery per dollar spent that's even better than some of the best well-known brands selling for twice the price, the Whispure 450 is right at the top when it comes to price-performance in True HEPA air cleaners. The ultra-quiet Whispure 450 is also very easy to use, a feature many of our customers like.

Room Size

490 sq. ft. (approx. 20' x 25')

Recommended For

Allergies, asthma, dust, pet hair, pet dander, some odors, gases and smoke, overall air quality

Best Fit

Recommended for those with more serious allergies, asthma, COPD or other respiratory issues, or anyone wanting the cleanest air

True HEPA Filtration


Particle Filtration Efficiency

99.97% to 0.3 microns

Particle Removal

Dust, dust mite allergen, pollen, pet dander, mold spores

Gas and Odor Removal

Light odors and smoke

VOC Removal


Optional Filters


Unique Features / Benefits

One of the quietest True HEPA air cleaners on the market. Energy Star® rated. Sealed HEPA for more particle capture, less leakage. Easy filter change. Slim design can go flush against a wall.

CADR: Dust rating


CADR: Pollen rating


CADR: Smoke rating


ACH (air changes per hour)

4.8 times (490 sq. ft. room)

Airflow (cubic feet per minute)

300 cfm (max)

Filtration System

1 True HEPA filter and 1 activated charcoal pre-filter

Number of Filters to Replace


Replace HEPA Filter

Recommended every 12 months

Replace Pre-Filter

Recommended every 3 months

Replace Other Filters


Dimensions (H x W x D)

22" x 17.8" x 11.5"

Color choices

Off white

Product Weight

22.3 lbs

Packaged Weight

27.9 lbs

Shipping Weight

38 lbs

Noise Level - (min-max decibels)

39-52 dBA


Manual ‐ rotary dial

Remote Control


Number of Fan Speeds


LCD Display




Programmable Cycles or Timer


Sleep Mode


Auto Fan Mode (auto adjusts based on air quality)


Particle, Gas or VOC Detector


Filter Status Indicator

Yes ‐ 2 LEDs (for HEPA & Pre-Filter) ‐ alert when filter change needed

Filter Reset function

Reset button

Other Indicators


Other Features

• Sealed HEPA filter
• Slim 11.5" deep design

Casters or Handles

Built-in Handles

Air Inlet


Air Outlet


Housing Construction


Fan / Motor Assembly

Not available

Energy Consumption (watts)

115 W

Power Requirements

115 V, 60 Hz

Power Plug

6-foot cord; 3-prong grounded plug


1.0 Amp

Energy Star®


AHAM-certified CADR


Approvals / Other Certifications

UL listed. California ARB certified.

Ozone Emission


Manufacturer's Warranty

1-Year Limited (failure)
5-Year Limited (motor)

Whirlpool Whispure™ AP450 Air Purifier Instructions ‐ Model AP45030K

Please see Owner's Manual tab for operating and care instructions, plus full instructions on changing the filters.

General on Pre-Filter:

  • The pre-filter absorbs odors and captures large airborne particles that enter the air purifier. Therefore, regularly changing the pre-filter will keep your unit performing at its best, and preserve the life of the HEPA filter.

General on HEPA Filter:

  • Remember that the filter's service life is related to the volume of air that passes through the purifier and the amount of contaminants in the air. If your indoor air has unusually high levels of airborne particulates or contaminants, the filter's service life may be shortened.

  • Regular maintenance helps to prolong the life of the HEPA filter. Keep the area surrounding the air purifier clean, and be sure to change the pre-filter approximately every 3 months.
  • Replace the HEPA filter if you notice a significant drop in air flow or if the filter media is excessively darkened.

NOTE:   Do NOT immerse the pre-filter or HEPA filter in water ‐ they are NOT washable.

Click here to view the Use & Care Guide for the Whirlpool Whispure™ AP45030K Air Purifier.

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