Whirlpool Whispure True HEPA AP450 Air Purifier


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.

MSRP $267.00 Selling Price $139.99
Out of stock

This product provides relief from: Asthma, Bacteria & Germs, Dust Allergies, Dust Mites, Fragrances & Odors, Mold & Mildew, Pet Dander, Pollen

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).

More Information

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.


Rated 4.84 out of 5 based on 17 reviews.

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August 5
This is a must for anyone with allergies. Really keep most of the allergens out of the air. Just looking at the outer filter it is an unbelievable amount of dust and pet hairs.
May 30
Easy to set-up .Affordably priced for this level quality of air purifier.Already making a difference in my home.
May 31
Excellent quality for the money! I've had mine for a week and have noticed how quiet it is and how much fresher and cleaner smelling the air in my apartment has become. You won't be disappointed. It came within 5 days of placing my order. Love it!
I bought this air filter 3 years ago after it was recommended by consumer reports. It was actually the only air filter still made that was recommended. We have dogs and cats and live in Arizona where it is very dry and dusty, and the amount of dust and hair that this thing sucks up is amazing. And disgusting, but in a good way. The difference is definitely noticeable. I even take it with us to my father's house (he smokes) when we go for a visit and it helps alot with the smell. Of course, no air filter will ever be able to completely eliminate smoke, but I was able to sleep much better. I have been looking for the last couple years for more of these air filters to put in other rooms, but it seems they had stopped manufacturing them for a while. Used ones were selling on Ebay for three times what it cost brand new! I am ecstatic to see them again, and I plan to buy at least two more for other rooms. As far as noise goes, on low it's hardly noticeable, but I always keep it on high. It's more of a "white noise" sound and to us is not a distraction at all. I recommend these to all my family and friends!
I've bought the whirlpool air purifiers since they were made under the Kenmore label, and I've tried other brands, but they are the most effective. This new version of the 450 is quiet and efficient.
While it's a bit noisy when the fan is on high, it's a nice quiet hum on low which is what I set it on at night. I have a cat (I know, I know, a really dumb thing since I am allergic to him) and it seems to be making a difference. For the first time in ages, I am waking up without a headache! I compared prices and National Allergy Supply was by far the best price around (and I didn't have to use my gas or my time to go get it!).
It's an excellent product. It is a little noisy for my taste, but the benefits are worth it. Unless I am watching t.v., the noise doesn't affect me much. It is fast at eliminating unwanted perfume/cologne scents... that is how I found out how fast it is at doing it's job.
I recently purchased this to replace the smaller Whirlpool Whispure I've used in the master bdrm over 7 years. I use the 2nd setting when it's time to sleep & run it high during the day 24x7x365. I replace the hepa annually & carbon filters bimonthly. Highly recommend.
This air purifier really moves the air. I am very impressed. Bought another one for my grandson who has really bad allergies. I am planning on buying 1 more for my downstairs.
GREAT cleaner for the money; very quiet on low. If you have another [$] to spend, though, consider the model that also has Turbo speed, great to use while dusting and stirring up the air, and a comfortable carry handle if you need to move it from room to room.
I live in Atlanta with a terrible dust mite allergy. My husband and I bought two for this home and a third for another home in Colorado. This allows me to LIVE. It's great, and you can tell a difference immediately. This is an excellent product. Great!
Love it but I need the filters to be in stock when I need it (them) both of them.
I have suffered from allergies all my life, and dwelt with asthma and I'm a Valley Fever survivor. This is by far the best air purifier I have purchased. Over the years, I purchased air purifiers of various brands, one for each room in our home. I keep this in our master bedroom, on the low setting. You can smell the freshness. The blower cools the room temperature plus provides a quiet white noise for sleeping. When the purifier starts sounding loud, I know it is time to change the carbon filter.
I have been using this machine for two weeks now and my eyes are not constantly itchy. I even dusted one day, without the usual sinus misery. We left it running one weekend while we left town, and when we returned, we both noticed that the house smelled cleaner! I love it!!
I am very pleased with this product. I have been using it now for 2 months and have noticed a definite improvement in my allergy symptoms, especially my itchy eyes, has eliminated that problem. I also love how quiet it is, will not disturb your sleep. I would definitely recommend this product, I am considering getting an additional unit.
Like other reviewers, I bought this filter based on Consumer Reports' recommendation and have been quite satisfied with it. It is much quieter than other brands of filters (I've had several!) and much more effective at combating my allergies. It works much better on pollen and pet allergens than on dust mites, though. Also, the pre-filters don't last as long as they are supposed to and you really need to start checking them about a month after you replace them.
Strong air recirculation, but too loud, too big and not attractive enough for my preferences. I had to keep it on the lowest setting and in the next room. I'm returning it, so I can purchase a Rabbit Air purifier.