Amazon.com: Customer reviews: Whirlpool Whispure Air Purifier, HEPA Air Cleaner, AP51030K

Top positive review

Very quiet, well designed, good air-flow, even at low speed.

Reviewed in the United States on June 18, 2012

About 10 years ago, I had purchased a round Envirocare Air Purifier, but while it did the job, it was way too noisy, even at the lowest speed. I promptly returned it and got my money back.

Before I ordered this model, I read through every single review here, as well as the extensive article on air purifiers (with ratings) in a recent issue of Consumer Reports. Probably the main reason why I decided on this unit was because Consumer Reports said, at high speed, it was the quietest model of all the ones they tested.

I ordered this on May 22, 2012. Much to my surprise, it was delivered on May 24th! And that was with Super Saver (free) shipping! After taking it out of the box and removing the styrofoam, reading the manual (yes, I actually do that), I plugged it in and it was good to go.

It has four separate speeds: low, medium, high, and turbo! Turbo is quite noisy, but it really circulates the air in the room. After the initial "air cleaning" in the room, which was only about an hour on the first day, I find that the only speeds I ever use are low (while sleeping) and medium during the day. Both of those speeds are quiet enough to not interfere with talking, TV watching, music, etc., yet are sufficient to continually keep the room air fresh and clean.

Incidentally, the day the unit arrived, but before it was turned on, the whole house was vacuumed and the shelves were dusted. I have a flat panel TV stand made of tempered glass that has always attracted dust like a magnet. As an experiment, for the first four days the air purifier was running the windows were kept totally closed. During those four days no dust accumulated on the TV stand. However, as the days got warmer, I opened the windows in the evening to let cooler air in. Then the TV stand started getting dusty again. I'm sure when the very hot summer months arrive, and the air conditioning is used instead of opening the windows, the TV stand will remain dust-free.

I have no complaints about this product. It is working great. It was a very good buy.

UPDATE: After more than a year of use (almost exclusively at the lowest speed) the pre-filter has only needed to be changed once, and the indicator light sequence for the main filter still shows it has more than half of it's useable life remaining. This tells me that the cost for changing filters will be much lower than I anticipated. I suspect this is because no one smokes here and there are no indoor pets, both of which, in my opinion, would entail a significantly shorter filter life.

3 people found this helpful

Top critical review

Critical reviews›

Filterkid

Whirlpool Whispure Air 510

Reviewed in the United States on November 28, 2011

Let me preface this by saying my profession is industrial filtration. I sell air filters and air cleaning devices to huge manufacturers so I have broad experience in air filtration technologies. When I saw this air cleaner, I was very impressed. This is one of the few that actually has a legitimate HEPA filter. Most claim to stop "99% of allergens", which really means nothing unless they tell you the size particle and percentage it stops of that particle. The Whirlpool Whispure Air 510 has a fantastic HEPA filter. It genuinely does what it says it will do. The pre filter is pretty useless, but it will keep the pet hair out of the HEPA. If you are buying this to elimiate odor with the "carbon pre filter", you will be sadly disappointed. There is not enough carbon in the filter to stop the odor from a single dinner. As far as particulate capture goes, the HEPA filter does an awesome job.

When I plugged the unit in, I was very impressed with the volume of air it moved and how quiet it was. If you put this in a small/medium size bedroom, you will do a great job and "cleaning" the air. The controls were laid out well. The brightness on the buttons was not so bright that you would have a night light in your room either. It comes with 4 different speed settings which was a nice feature. All in all it is a very well built and functional unit.

Ultimately I ended up returning the unit. Everything about it was exactly what I wanted except one thing...it acted like a portable space heater! The unit itself does not require very much power, but the heat it generates will cost you more in air conditioning. I put the unit in a 12x12 bedroom and let it run for a couple of hours while I was gone. When I returned home, the bedroom was several degrees hotter than the rest of the house. I close the bedroom door when I sleep so I replicated that when I set the unit up and left. I closed the door and turned it on medium speed. The problem is, when you turn it on and let it run all night it will heat your room up tremendously. I live in Phoenix, Arizona so extra heat is a problem.

My recommendation is if you can live with the extra heat it generates, then this is for you. This is one of the best portable air cleaners on the market for the price point. If you really want the best of the best in portable air cleaners, you will want to buy the Austin Air Healthmate 400. That is top of the line and is the best on the market.

994 people found this helpful

1,544 total ratings, 1,320 with reviews

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From the United States

Ima Consumer

Very quiet, well designed, good air-flow, even at low speed.

Reviewed in the United States on June 18, 2012

Color: Ap51030k - WhiteVerified Purchase

3 people found this helpful

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J. Ratliff

Great Unit

Reviewed in the United States on December 30, 2010

Color: Ap51030k - WhiteVerified Purchase

I purchased this unit after doing TONS of research and upon the recommendation of a major consumer testing and reporting magazine. My first impression of the unit was that it was way too big to fit unobtrusively in my living room; however, because the air is pulled in through the front grill and discharged from the top of the unit, I was able to push the purifier up against the wall to save space.

The controls are simple to use. I find there to be plenty of options for fan speed (noise control). On the lowest setting I can watch TV at normal volume levels with the unit sitting three feet from me. After leaving the room it's easy to ratchet it up to the TURBO mode which I leave it on most of the time when not using the living areas. I appreciate the indicators which tell you when the filter needs replacing, and roughly where it is at in terms of its lifespan (there are five lights to represent HEPA and pre filter status). I also appreciate the 5 year limited warranty that comes with the unit (see brochure for details).

After 2.5 months of use I find that there is a noticeable difference in the quality of the air. It feels fresher, smells cleaner, and I can't see dust flying through the air (which was a usual occurrence before the filter). At first I was hesitant to spend so much on a purifier which required an on-going investment each year; however, after spending 2.5 months with the first unit I'm going to order a 2nd unit for my bedroom. I don't have allergies, but feel that the investment is well worth the reduced dusting, potential health benefits, and quality construction of the unit itself.

UPDATE #1: After nearly 3 years both of my units are still going strong. After many button presses the plastic on the control panel of the unit has bubbled up in certain places. Somewhat unattractive but not so noticeable that it makes me unhappy. I still highly recommend this product and would purchase again for my self (and still continue to recommend to others).

UPDATE #2: All of my family's units (including my two) are still going strong. My oldest unit is just over 4 years old now. I have a friend that bought the model which has the fancy sensor which automatically adjusts fan speeds. While I like the slightly smaller and boxy look of the unit slightly more, it doesn't have as high a capacity. Also, it seems to me that the sensor is kind of pointless since I leave my units on TURBO speed most of the time I'm not home to maximize the air purification. Still happy that I purchased these and glad to see that filter prices haven't gone up in 4 years.

334 people found this helpful

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Old Man

Air Purifier Seems Good, But a Little Pricey

Reviewed in the United States on June 8, 2011

Color: Ap51030k - WhiteVerified Purchase

This was purchased based on the recommendations of a major consumer magazine. It was rated number one for HEPA air cleaners.

I said this is a little pricey because it is simply a plastic box with 2 filters, a motor and a fan forcing air through. I don't know why air purifiers have to be so expensive. However, this seems to be a quality unit and fairly quiet considering it is moving large amounts of air.

This was purchased to help improve the air quality of our house in preparation for the return of our 6 year old grandson who is being treated in a hospital for Leukemia (Our old house is very dusty.). We don't want to take any chances with his health and hope this item will help prevent illness. I have found other units that sell for about double the price of this air purifier and hope this will be adequate. The more expensive units generally have UV lights to kill microorganisms, which this one does not have.

This air cleaner has a 1 year warranty on everything except the filters and a 5 year warranty on the motor, if the filters are changed when they are supposed to be. The carbon pre-filter is to be changed every 3 months and the HEPA filter is to be changed every 12 months, under normal use. The unit has indicator lights to tell you when to change the filters. I put a label on the back with the dates the filters were installed and when they are to be changed. According to the consumer magazine, the annual filter cost is $117.

The air cleaner has 4 fan speeds: Low, Medium, High and Turbo. On Low, the noise isn't bad at all. The consumer magazine rates the noise on low as very good. The magazine rates the noise on high as good. I have our unit turned on Turbo, and it is rather loud. It is moving quite a bit of air and the noise is to be expected, I suppose. Although I wrote down the dimensions of the unit, it seems larger than I expected it to be. I suppose it needs to be fairly large in order to move and filter as much air as it does. The large size probably keeps the noise level down. The fan seems to be a "squirrel cage" type fan.

The manual is available on-line as a PDF file. I would suggest that you look it up and read it before purchase. The manual has all kinds of warnings related to electrical service for the unit. It states that it must be connected to a 15 or 20 amp fused 3 prong grounded outlet. It states that the use of a time-delay fuse or time-delay circuit breaker is recommended. It states that no adapter or extension cord is to be used. This had me afraid that the unit used a great deal of power and I wondered if the electrical service in our old house could handle it. I don't know why the warnings are in the manual. A search of the Internet indicated that the unit uses no more than 115 watts of power (I don't know this for certain). I was able to connect this to one of the few grounded outlets in our old house and thus far have had no power problems.

It has a number of LEDs which could bother very sensitive people if used in a bedroom at night. My wife is one of those.

The unit has a sleep mode which turns the unit on low for 8 hours and then returns it to the previously selected setting. We may use this in reverse so that the unit (in our living room) is on low during the day and turbo at night.

With small children around, we may use the control lock function which locks the controls to prevent the unintended changing of the settings.

The air enters the air cleaner from the front and exits from the top. The unit has a carry handle of a sort built into the top. It weighs about 25 pounds.

The consumer magazine states that the annual energy cost is about $91, which comes to $7.58/month. This will, of course, vary from area to area.

To receive this before our grandson's homecoming, I paid $68.53 for next day delivery. I ordered it on a Sunday and received it on Tuesday. I hated to pay the extra shipping, but felt it was worth it to have it in place before his return.

This air cleaner has a "Quiet 30-Day Money-Back Guarantee". If one is not completely satisfied that this unit is quieter than one's previous high-efficiency air purifier, Master Brands HK Limited will take it back and refund the money, less shipping and finance charges. Note: While this is sold as a Whirlpool branded item, it is actually sold by Master Brands HK Limited. Whirlpool has licensed its name for use.

So far, I am happy with my purchase and hope it will serve my intended purpose.

Update - 09/29/2011:
I just changed the pre-filter and found it covered almost completely with dust. A photo of the pre-filter is posted. The pre-filter is removing a great deal of dust from the air. Since installing the air cleaner, the house has to be dusted much less.

When I removed the pre-filter, I noticed that the pre-filter doesn't seal very well at the bottom thus allowing dust and other debris to collect on the HEPA filter. It seals much better on the other 3 edges.

65 people found this helpful

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Rob

Pretty good product / Whirlpool service iffy

Reviewed in the United States on October 8, 2013

Color: Ap51030k - WhiteVerified Purchase

My original review was titled: "Sent it for repair...now it's lost????" Now after 3 months, we received a replacement (see update below).

We bought this to help remove dust from the air. It was rated highly on Consumer Reports. I placed it in the area that I was doing some remodelling to help reduce dust. We thought it helped reduce dust to the extent that it was capable of (it can only suck dust from the general vicinity that it is in. It's not going to clean your house for you!). Also it seemed to reduce cooking odors. So, I guess you could say it did what we bought it for and we were satisfied... HOWEVER, from the first day, I could see that the fan was out of balance. It wobbled back and forth and caused the whole unit to vibrate. "It's too bad they couldn't balance the fan, it's not rocket science", I thought. "For $300.00, it should be perfect." Anyway, it didn't cause any real problems, so I ignored it. Within a couple months, it start making a light knocking noise on low speed for a while after starting it. (The noise was in sync with the movement of the out of balance fan.) It went away, so I didn't care. Eventually, it got worse and worse to the point where we couldn't have it on at night. It is pretty quiet on low but the noise was too loud for sleeping unless it was on the other side of the house. I decided to get if taken care under the warranty so I got an rma# and spent $70.00 to ship it to Texas. Two months later, nothing. It was received and signed for, so I knew it got to where it was going. I called Whirlpool Customer Service and they don't know what is going on. Now after two weeks and four calls, they say they are not getting a response from THEIR OWN REPAIR FACILITY! In fact they say that they are just a "call center" and can't pick up the phone and call them!

PRODUCT QUALITY: 2.5 Stars (would have been 5 if it wasn't for the noise)
SERVICE QUALITY: 1 Star (only because they actually answer the phone and they are nice)

At this point, they just need to send us a new unit (and if it has another out of balance fan, we can start all over again.....Yikes!)

UPDATED 10/25/13:
Three months and six phone calls after sending it in for repair, a replacement unit was sent. If fact it is another brand new unit with new filters! This one has pretty much the same wobble due to the fan not being balanced perfectly. Time will tell whether this will morph into a noise like the original one did. I am changing my review from 1 star to 3 stars. If it didn't have the fan balance problem (which they could easily rectify if they chose to), and if I didn't have the horrible service experience that I had, I might have even gone with 5 stars, since it is a well designed product. Would I recommend it? I just don't know. I am so frustrated with these appliances that are made cheaply and cause consumers grief. (We just had a G.E. microwave quit at 13 months...) It is the way of the "international corporation". "Cut corners until it is one notch above unusable" is the business plan. When are they going to learn that there is a market for quality? People will pay more for it.

UPDATED 11/13/13
But wait, there's more! Last week out of nowhere, another unit showed up on our front porch! I called the company that apparently ships units on behalf of Whirlpool customer service (their name & number was on the box), and after researching, they had fedex pick it up. Weeks after recieving the first one, somehow another one got sent. Wow.....

UPDATED 11/16/14
The replacement that we received has worked fine with no noise issues like the original one. It has a slight wobble but no noise. We have used it almost 24/7 for the last one year. At this time I am changing it from 3 to 4 stars. I guess at this point I would recommend it (but I still have a bad taste in my mouth from the service ordeal).

13 people found this helpful

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Phil in Magnolia

Reporting My Experience 10 Years After Purchase

Reviewed in the United States on April 2, 2022

Color: Ap51030k - WhiteVerified Purchase

I purchased this Whirlpool air purifier here on Amazon almost exactly 10 years ago (June 2012, to be exact). Normally I would have written a review much sooner, but after realizing that I had not done that yet, it gives me the opportunity to report on my experience over a much longer period than would normally be possible.

The long and short of it is that this has been a reliable and hard working air purifier for the entire period I have owned it. It has not been in use continuously for that entire time - I went through a relocation at about the mid point of this period and it was in storage for a couple of years - so the actual cumulative use time may be closer to 7 years. That is still substantial, and I can report that it continues to work today (and for example it has been in continuous use since COVID began and I really started to think seriously about home air quality).

I use it on the low speed setting so that it is continuously circulating and cleaning the air in our bedroom. I change the carbon pre-filters regularly and have also replaced the HEPA filter several times. I'll provide links below to those products here on Amazon.

This is not the most modern air filter now available but it is completely satisfactory. When COVID began, I purchased two additional units - this Coway Airmega AP-1512HH(W) True HEPA Purifier - based upon the Wirecutter review and recommendation. The Coway unit is quieter than this Whirlpool and will automatically cycle to a higher speed when it detects contaminants in the air (cooking smoke, for example), and I think it is a better air purifier overall. But I give this Whirlpool unit a 5-star rating based upon its 10-year performance and giving it credit for being more state-of-the-art at the time I purchased it than it might be considered today.

Links below for replacement filters that I have purchased here on Amazon. Replacement is indicated by status lights on the control panel of the air purifier, which give the status of both filters individually.

Whirlpool 8171434K (8171434), 4-Pack (Large), Air Purifier Active Carbon Pre-Filters - these are the actual Whirlpool filter, not a 'generic' replacement, however I would point out that this particular filter is simply a pre-cut slab of carbon filter material and there is almost certainly nothing too special about it other than getting the right size to fit the unit. There are other companies here on Amazon that sell filters that I'm sure work just as well, for less cost.

Whirlpool 1183054KC, 2-in-1 Filter, Genuine True HEPA-Charcoal Combined (Large) – Replacement Filter ; and Whirlpool 1183054K True HEPA Filter these are both Whirlpool replacement HEPA filters, I have purchased from both of these links on Amazon, both are sold by a third party seller and are the correct Whirlpool filter and packaged in correct packaging. I don't know why the seller has these two listings here, they have different prices, so my suggestion is to order whichever happens to be less expensive at the time. Depending on the quality of the air in your home, they may not require replacement more often than annually or perhaps even longer.

11 people found this helpful

Helpful

TheOneWhoBuysThings

Very good air purifier

Reviewed in the United States on June 9, 2011

Color: Ap51030k - WhiteVerified Purchase

For me the most important aspect of an air purifier is how quiet it is. Having owned other popular brands (Holmes, ...), I find this Whirlpool to be far superior in both sound levels and the amount of particulate it filters from the air. I bought my first Whirlpool AP51030K in the middle of 2010. After a year of running the unit I still have not had to replace the HEPA filter.

Pros:
- Extremely quiet on its lowest setting
- Moves tremendous amounts of air on its highest setting
- Can be placed against a wall
- Has a sleep mode which slows fan speed for 8 hours then returns to preset mode
- Even though it is large, it is really easy to move around from room to room
- Very good value for the price

Cons:
- You probably cannot run it on its highest setting when you are actually home, it is too loud
- It is quite large
- The HEPA filter is expensive
- Not the cheapest purifier on the market by a long shot

The most dramatic evidence of how good this model is comes by way of how much less frequently I have to change the air filter in my central A/C unit. Because of my wife and son's high sensitivity to allergens, I usually buy quite expensive air filters ($15+ a piece). I found that after buying this Air Purifier I go a couple more months in between changing the A/C filters, which saves me money.

I like that the unit uses a pre-filter. It turns out that the prefilter actually captures a large percentage of the dust and larger particles in the air. I find that vacuuming the prefilter at least once a month extends its life past the 3-month recommended changing interval. In addition, the prefilter and filter seats well in the unit (no leaks). This is nice because a Holmes unit I have has many "leaks" around the prefilter and filter, meaning more frequent cleanings of the unit housing.

Before purchasing this unit I heavily researched Air Purifiers. I discovered that small cheaply priced units score well in CADR tests because they move massive amounts of air. However, they leak horribly and sound like freight trains! Because of this unit's larger size it can be run on its lowest setting and still do a great job at cleaning the air. This unit is well-suited to be placed in the bedroom. We even have one right next to the TV and run it while watching the TV and cannot hear it at all. I have two of these units and intend to eventually buy at least one more.

2011.06.15 -- UPDATE:
The most recent unit I just purchased was, in my opinion, defective and I have returned it for an exchange. Note to anyone considering this model; if there is any whine or rattle in the unit it is defective. My other units are very quiet and solid.

3 people found this helpful

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RichLucky

Life Changing Event

Reviewed in the United States on August 6, 2013

Color: Ap51030k - WhiteVerified Purchase

I bought this for my wife about a year and a half ago and it's the best thing I did! I has reduced her allergy symptoms by about 85%! My only regret is not getting them sooner.

We effectively live in about 1,400 square feet along with two cats. I have three of these running full-time, one in the bedroom, one in the living room, and one in the home-office.

We change the carbon pre-filters about every three months, and it is visibly obvious that they are effectively cleaning the impurities out of the air. I'm always amazed at what junk is floating around that we had previously been inhaling in our lungs, but now is trapped by the filters.

The main HEPA filter we changed unintentionally late, at about a year and a half versus at the one year point. And initially upon visual inspection, one is tempted to say "it doesn't look that dirty," but when compared to a new filter, it is obvious it has been doing its job effectively also, and needs to be replaced. See the comparison between old and new on a 30-second video on my YouTube account at:

http://youtu.be/D6SNtLB9W-0

At the time of writing, a 4-pack of carbon pre-filters cost about $25, and one HEPA filter about $75, so about $100 per year for clean air; and again, worth it!

We do have an occasional problem with a slight cyclical "squeaking," or "chirping" noise from one of the units, that is mitigated by temporarily changing the fan speed or shutting the unit off for a bit. The normal "white" noise from the fan running becomes unnoticeable very quickly.

PROS:
- Highly Effective
- Quiet
- Lightweight
- Small profile and footprint
- Super easy to replace both carbon pre-filter and HEPA filter

CONS:
- Occasional "chirping" noise within 6 month's use
- Filters hard to find in local stores (rec: order on line)

Summary: Highly effective and highly recommended! Very dramatic results in allergy symptom reduction!

4 people found this helpful

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Mary Lambe

My most valuable allergy management tool

Reviewed in the United States on June 24, 2013

Color: Ap51030k - WhiteVerified Purchase

This is the unit to use if you have asthma or allergies and is the single best investment I have ever made in my personal wellness. I run it on low 24/7, in my bedroom. I have noticed no increase in my electric bill. It had been rated #1 by Consumer Reports when I purchased it about a year ago (as a replacement for a Kenmore drum HEPA filter.) It has a simple, efficient design and is very easy to keep clean. When I replace a filter, I run the removeable front panel under a warm shower for a minute, to wash off any grime. The plastic housing is durable with a mat finish - no shine. I used nail polish remover to erase a stubborn black scuff mark.
Purified air exits the top and that opening is sufficiently large so that the air is not forced and the stream is not too strong. If this unt is placed within three-four feet of curtains, the exhaust air could make them flutter.
It uses two filters, both of which are easy to find in the marketplace and easy to replace. The largest filter lasted more than a year and during that same period it used four of the carbon filters. The signal lights that indicate how much life remains in these filters are convenient and work well. These indicator lights do not self-reset. You need to reset them by holding down the reset button when you replace a filter.
I like that the electrical cord can be folded into a slot in the back's bottom, so that the unit can sit very close to the wall. The head of the cord is a vertical, flush mount, which further contributes to how close to the wall the unit can operate. The touch-control buttons are not sensitive, so a dog or young child is less likely to accidentally change the settings. The fan is not loud and the sound is not irritating. The woosh of exiting air seems louder than the whir of the fan. The unit does not emit any odor, even when new.

One person found this helpful

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Bunkie J.

Great product

Reviewed in the United States on April 15, 2024

Color: Slate BlackVerified Purchase

It works great cleaning the air to make it so I can breath.

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Wanos

Quiet, Powerful and cheap filters

Reviewed in the United States on April 4, 2014

Color: Ap51030k - WhiteVerified Purchase

Note: I own both the Alen A375uv and the Whirlpoor AP51030K. Comparison below.
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Alen A375uv PROS:

1) Small enough not to take up a lot of space. I measured it to be about L 19", W 8", H 17"

2) Has a remote (which I've never used btw lol)

3) Has a bacteria killing UV thingy majiggy, which Consumer Reports confirms does kill bacteria, but probably isn't needed.

4) Works as advertised. My Alen A375U seems to remove minor skunk smell (although I hear hydrogen peroxide with baking soda spray mist might work better because it actually breaks down the molecular bounds of sulfur compounds). And I know this sounds gross, but it's true: I had my A375U set to auto, meaning it will auto-adjust the fan speeds according to conditions it detects. One time my little nephew, being the little booger that he is, runs up to it, farts at it, and the air purifier auto turned the fans on full blast LOL. How's that for proving something works as advertised? In addition, you know how sometimes your smoke alarms come on if you burn something on the stove? The Alen does come on full blast if AUTO is turned on when it detects smoke particles in the air and such. It does so before my smoke alarms kick in, so... it works as advertised.
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Whirlpoor AP51030K PROS:

1) Quieter compared to the Alen due to its bigger opening and bigger fan blades. Even on the highest setting it's about the medium setting of the Alen.

2) More powerful (you can feel the air rushing by), again due to a bigger opening and bigger fan blades.

3) Filter replacements cost 1/10th the price of the Alen. Yes, you read right. You get a 4 pack filter for the Whirlpool for about $23, and a 1 pack filter for the Alen for about $60. Do the math.
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Alen A375uv CONS:

1) Now here's the kicker, and until Consumer Reports or some large organization tests it out, I can't be sure. I sure as heck don't want to go spending money on an Ozone detector. Anyways, from what I understand, the "fresh" smell after a lightning storm is due to lightning breaking down the O2 bonds and turning 3 O2s (diatomic Oxygen you and I breath in to stay alive) into 2 O3s (Ozone, which is great at protecting you from getting skin cancer from the sun when it is high up in the atmosphere). Well, Ozone is bad for you. According to Wikipedia, it states "Ozone is formed from dioxygen by the action of ultraviolet light and also atmospheric electrical discharges". I notice when I turn on the UV button, which as noted above kills bacteria and is been confirmed to do so by Consumer Reports, it smells "fresh". I don't use the UV button anymore because I just don't trust it. Consumer Reports did confirm some air purifiers do indeed create Ozone FYI.

2) Filter replacements are expensive. As noted, about 10x the cost of the Whirlpool filter replacements.

3) The Alen offers a Lifetime Warranty. But Lifetime Warranty means you have to buy Alen Corp's filters, for life. After awhile, the money you spend on those filters (on auto ship with Alen Corp btw) could have been spent to purchase additional filters, or other types of filters. You do the math. After 10 years, how much do you gather you'd pay for the filter replacements? Who has that kind of money? I'd rather just wait a little longer in between changing out the filters and just buy a bunch of actual air purifiers with the money instead of spending the money buying a bunch of filters, which you may or may not need. I only need my air purifier for 2 months of the year during allergy season (but in which it is VERY severe for me) so I didn't replace my filter until after 4 years. So the Lifetime Warranty is great, for Alen Corp.
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Whirlpoor AP51030K CONS:

1) Huge. I measured it to be about L 21", W 9", H 24"

2) Has big a$$ open slots in the back top where little kids and throw things down to damage the spin wheel. WTH???? Whoever designed this needs to be freaking fired. If you have little kids or little kids come over to visit, you better keep this in a well secured area or buy some netting or something. Stupid, just stupid.

UPDATE SEPT, 2020:

Well, living in the west coast, the unprecedented wild fires burning has turned the air into the worst in the world, at hazardous levels. This puppy is still kicking it with zero problems, and kept the smell at bay. No noises, no issues at all. I use it 2-3 months of the year though so I don't use it 24/7 like some people, which could explain why it lasted 6 years for me and counting. Amazon says "Purchased on March 24, 2014".

4 people found this helpful

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Whirlpool Whispure Air Purifier, HEPA Air Cleaner, AP51030K

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