Whirlpool AP51030K Review: A Good Air Purifier?

Last updated on April 26th, 2024 at 01:06 pm

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An air purifier is an electrical device which removes contaminants and allergens from the air that includes dust, pollen and per dander and dust mites that can trigger allergens in sensitive people.

Other harmful substances include smoke particles and volatile organic compounds (VOCs).

One good model that I have come across is the Whirlpool AP51030K air purifier. This air purifier has been rated to be the No 1 filter-based model by a leading consumer magazine.

In view of this, I have decided to carry out an unbiased review on this air purifier.

Benefits of owning a Whirlpool AP51030K air purifier

Easy-to-Use Electronic Controls

The AP51030K features an electronic control panel with touch buttons to allow easy selection of purifying cycle. There are 4 fan speeds: Low, Medium, High, Turbo and a Sleep mode that allows for quiet operation and saving energy concurrently.

Efficient and Quiet Mode of Operation

This Whirlpool Whispure air purifier has a two-step mode of operation that involves the passing of air initially through a charcoal pre-filter that will trap odours and pre-cleans the air before it reaches the True HEPA filter.

The True HEPA filter can remove up to 99.97% of particles with a size as small as 0.3 microns. It can removes airborne allergens likr dust, pet dander, pollen, tobacco smoke, fabric fibres and mould spores.

Besides that, the Quiet Partner® System: an insulation package that will ensure that the Whirlpool AP51030K delivers the quietest, and yet efficient air purifier technology.

Ease of Maintenance

This Whirlpool air purifier is easy to dismantle and maintain just by cleaning the body with a soft damp cloth. A point to note, the front grille is not dishwasher safe therefore just washing it gently with soapy water will suffice.  

Perfect for Large Rooms

The Whirlpool AP51030K air purifier can handle large rooms up to 500 square feet and filters the air 4.8 times per hour. Its built-in handles allow for its easy transportation around the house and to any room.

Additional Features

There are 2 individual filter replacement lights that will indicate when there is a need to replace the HEPA filter or charcoal pre-filter. The indicator lights for each filter are also divided into 5 stages individually that will provide details about their lifespan.  

Green Product

This Whirlpool air purifier is an ENERGY STAR certified product meaning that it fulfils the strict energy efficiency guidelines based on its CADR (Clean air delivery ratio)/Watt (315 CADR/watt) set by the U.S. EPA.

Summary of Specifications for Rinnai RL94iN

Dimensions Height = 23 in.
Width = 14 in.
Depth = 9.3 in.
Weight = 46 pounds
Hot Water Capacity 0.26 to 9.8 GPM
Installation ModeIndoors
Minimum Activation Rate0.4 GPM
Minimum/Maximum Gas Rate (Input BTU/h)10,300 – 199,000
Minimum/ Maximum Water Pressure 20 – 150 PSI (Recommended water pressure 30-80 PSI)
Ignition Direct Electronic
Temperature Settings98°F - 140°F (factory default)
98° F - 185° F with MCC-91-2US
Type of ControllerMC-91-2US (included)
MCC-91-2US (optional for Commercial or Hydronic Applications)
MC-100V-1US Deluxe Controller (optional)
BC-100V-1US Bathroom Controller (optional)
ElectricalAC 120 Volts, 60 Hz
Electrical Consumption Normal: 97 Watts
Standby: 2 Watts
Anti-Frost Protection: 120 Watts
Service Connections Gas Supply: 3/4 Inch MNPT
Cold Water Inlet: 3/4 Inch MNPT
Hot Water Outlet: 3/4 Inch MNPT
VentingDirect Venting
Approved Gas TypesNatural Gas or Propane
Energy Star Certified Yes
Energy Factor 0.82 for Natural gas or Propane

How does the Whirlpool AP51030K rank on popular websites?



180 customers at Sylvane give the Whirlpool AP51030K an average ranking of 4.6/5.0 stars. Out of 180 customers, 128 customers gave it 5.0/5.0.


99 customers at Walmart gave the Whirlpool AP51030K an average ranking of 4.7/5.0. Out of 99 customers, 70 customers gave it 5.0/5.0.


789 customers at Amazon give the Whirlpool AP51030K an average ranking of 4.4/5.0. Out of 789 customers, 522 customers gave it 5.0/5.0.

Customer Reviews on Whirlpool AP51030K

I have read recent reviews on this Whirlpool Whispure air purifier and have summarised them below into the pros and cons.

The Pros 🙂

Quiet mode of operation; the AP51030K has a quiet mode of operation, as seen from a customer’s remark about being able to programme it at its lowest settings, placed at 3 feet from him, and watch TV at normal volume,

Good choice of speed features; this Whirlpool Whispure air purifier with its 4 speed settings has been remarked by customers to be a pro,    

Well-designed control panel; the controls were mentioned to be laid out well with the brightness on the buttons to be not so bright to the extent that you would have a night light in your room,

Replacement filter indicator lights; these indicator lights have been mentioned by customers to be useful in warning customers about when the filters should be changed,

Ability of HEPA filter; the functionality of the installed HEPA filter to remove particulate matter,

5 year-limited warranty; this warranty that covers the motor for this product was also a mentioned pro.

The Cons 🙁

Charcoal pre-filter; the charcoal filter has been mentioned to not able to remove odours as there is not enough carbon in the filter,

Excessive heat generation; the heat generated by the unit during operation has been a mentioned con,  

Poor quality controls checks; customers have mentioned that it is now made in China, with some comments about unbalanced rotors that cause vibrations leading to it malfunctioning.    


The manufacturer offers an initial 1 (one) year limited warranty for parts and labour on the air purifier, where for one year from the date of purchase, if the air purifier fails when operated and maintained according to instructions attached to or furnished with the product, Master Brands HK Limited will repair or, at our option, replace your air purifier. The replacement unit will also be covered by their 1 (one) year limited warranty.

*Note: this warranty does not cover the replacement HEPA (High Efficiency Particulate Air) filter or pre-filter. Use of a non-Whirlpool filter or failure to replace the filter regularly will invalidate this warranty.


There is a 5 (five) years limited warranty on the air purifier motor, from the date of purchase, if the air purifier motor fails when operated and maintained according to instructions attached to or furnished with the product, Master Brands HK Limited will repair or, at their option, replace your air purifier.

Keep the booklet and your sales receipt together for future reference. Proof of purchase or installation date for in-warranty service must be provided when requested

Best Deals for Whirlpool AP51030K

As I was doing my research on this Whirlpool Whispure air purifier, I found out that a good website to purchase this air purifier will be Amazon. Upon comparison of prices with the listed websites, Amazon has consistently priced the product at the lowest prices possible.

Therefore if you are interested, here is the link for this product: Whirlpool AP51030K Best Deals

(Download the User Manual for Whirlpool AP51030K here)


(Published on 8th April 2013)

(Last Updated 19th February 2015)


  • Wilson Yeo

    I am the admin of Green Energy Helps and I possess a keen interest in how green energy and leading a green lifestyle can help to reduce our individual carbon footprints. I will be providing information about green energy and lifestyle tips with unbiased reviews on green products for your consideration. Note: This website uses affiliate links which may earn a commission for purchases made at no additional cost to you.

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