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Alen FLEX Air Purifier, Quiet Air Flow for Large Rooms, 700 SqFt, Air Cleaner for Dust, Pet Dander, Pollen, Absorbs Cooking/Smoke Odors with Long Filter Life

  • Based on 3,827 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, May 20
Order within 13 hours and 52 minutes
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Color: White


Size: Dust, Mold, Pet Odors


Style: Filtration


Features

  • RECOMMENDED FOR: Capturing dust, dander, small airborne particles, pet fur, and odors. Sleek design fits in any space from small to large rooms.
  • B4-PURE FILTER: Standard filter that helps capture asthma and allergy triggers.
  • TRUE HEPA: Includes a Medical Grade H13 True HEPA layer that captures 99.99% airborne particles larger than 0.1 micron. True HEPA filters last 3-5 months longer than standard filters.
  • CLEANS AIR FAST: Cleans 700 SqFt every 30 minutes, twice as fast as key competitors on Turbo speed. Perfect for any space from small to extra large bedrooms, living rooms, offices, nurseries, kitchens, and basements.
  • PERFECT GIFT WITH A RANGE OF APPLICATIONS: Alen air purifiers aim to maintain our communitys health and wellness with cleaner pure air. From back-to-school preparations for classrooms, doctors offices, hotels, bars, lounges, restaurants, and most importantly your home, our air purifiers offer air filtration to everyone. A great gift for smokers and pet owners who need to improve their indoor air quality caring for their loved ones.

Color: White


Brand: Alen


Product Dimensions: 8.5"D x 15"W x 25"H


Floor Area: 700 Square Feet


Noise Level: 39 dB


Color: White


Brand: Alen


Product Dimensions: 8.5"D x 15"W x 25"H


Floor Area: 700 Square Feet


Noise Level: 39 dB


Particle Retention Size: 0.1 Micron


Wattage: 36 watts


Item Weight: 15 pounds


Manufacturer: Alen


Item model number: Flex-Pure


Is Discontinued By Manufacturer: No


Finish types: Plastic


Assembly required: No


Number of pieces: 1


Warranty Description: All Alen's air purifiers include a warranty if used in the contiguous United States only.


Batteries required: No


Included Components: Air purifier and filter


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The Alen FLEX Air Purifier has overwhelmingly positive feedback from users suffering from allergies and asthma, even those with pets. Reviewers note its sleek design fits well into their home aesthetic and isn't overly noticeable. They mention a noticeable reduction in dust and allergens in their living space since using the purifier, leading to fewer asthma and allergy attacks and improved breathing.

Pros

  • 🟢 Reviewers have seen a significant decrease in allergy and asthma attacks due to the air purifier.
  • 🟢 The purifier has positively impacted users' health and improved their quality of life.
  • 🟢 The purifier effectively reduces dust and pet dander in the living spaces.
  • 🔵 The design of the purifier is sleek and seamlessly blends into most décor schemes, coming in different colors and 'wood' types.

Cons

  • 🔴 The highest setting of the purifier can be a bit loud, noticeable for those who are sensitive to noise.
  • 🔴 Although improvements in air quality were noted, it may not happen overnight and takes consistent usage.

Should I Buy It?

Yes, if you are struggling with allergies, asthma, or the presence of pets, the Alen Flex Air Purifier is highly recommended by its users. Its impact on indoor air quality and consumer health combined with its aesthetic design makes it a worthwhile purchase, despite some noise on the highest setting.


  • Expensive, but so worth it
Color: Brushed Stainless Size: Dust, Mold, Pet Odors Style: Filtration
This air purifier is a bit more expensive than others that I looked at, but I recommend it to friends and family all the time. Noise level: On the lowest two settings, this air purifier is essentially silent. The highest setting is definitely loud enough to be heard, but is quiet enough that it is just background noise that you don't notice. For reference, my friend has an air purifier that they bought for about half the price and their lowest setting produces the same amount of noise as my highest setting (while my purifier works much, much better). Air purifying: On top of being virtually silent, this air purifier cleans my air so well. Spring is starting in our area and typically I have terrible allergies, even while in my home. I have not had any symptoms inside my house this year yet. It also helps with odor in my apartment. When I first moved in, it had a slightly musty smell and within about 1 week, the musty apartment was smelling fresh and normal. It also combats cooking smells like bacon, onions, etc. Design: It has a chic design that doesn't scream "air purifier" the minute you see it. It is meant to blend in with your furnishings and because it is so quiet and chic, it's not an eye sore. TL;DR: Great air purifier that is quiet, effective, and aesthetically pleasing. Definitely worth the price. ... show more
Reviewed in the United States on March 8, 2024 by Sunshine

  • Helping with ASTHMA + ALLERGIES! Also one of the better looking air purifiers out there.
Color: Oak Size: Dust, Mold, Pet Odors Style: Filtration
If you are thinking of getting the Alen FLEX air purifier to help with allergies or asthma or pets, read on (because I have all 3): For context, I had been having worsening asthma and allergy attacks over the past few months, to the point where my asthma went from being predominantly exercise or allergy induced to recurring several times a day. After a trip to an asthma and allergy specialist and receiving a full allergy test, I was told that I was allergic to almost everything (every tree, grass and weed, dust mites, cockroaches, cats, dogs, etc. plus other food and miscellaneous allergies). I already knew I was allergic to all of those things but the doctor confirmed that I was on the "severe" end of the scale and I was advised to get rid of our cats and get an air purifier. As most cat owners know, getting rid of a beloved cat would be like throwing your child out on to the street, so the cats had to stay even if it meant using inhalers twice a day, popping allergy medication daily and maybe just banning the cats from the bed and wardrobe. But we knew we would need a GREAT air purifier to help with all the allergens coming from our furry friends and everything else permeating our allergen-laden Northeast American air. You know how some people have "spring allergies"? I have spring, summer and fall allergies thanks to the wide range of trees, grass, and weeds that all decide to pollinate at different times. I had been obsessed with getting a Molekule for a while, and if not, a Dyson. But to be entirely honest, neither was in our current budget due to a recent influx of life expenses. My husband and I agreed that getting a second air purifier from one of those brands might be in the cards when we move into a bigger home in a year, but for now, I should buy the best possible air purifier in the $300 range to cover 700-800 square feet. After days of research and reading hundreds of reviews, I finally settled on this Alan FLEX purifier in Oak. It's a beautiful air purifier, and if you have a home with a more natural aesthetic like we do, the "wood" front helps the machine blend in more with its surroundings instead of sticking out like a sore thumb. We tend to like wood, natural fibers, ceramics, etc. for our decor, and I wanted a purifier that was barely noticeable at a glance because it somewhat camouflaged with its surroundings. Because it has such a minimalist design with clean lines and few obvious vents or mechanical-looking parts, I feel it would blend well with most decor schemes, and it's so great that this model also has numerous colors and wood types to choose from. As for how well it works, I could not confirm its effect on my health immediately but 3 weeks later, I absolutely noticed a reduction in the frequency of my asthma attacks. While I was having several attacks a day, I now have one every 2 to 3 days, and my health in general is improving with each passing week. With cats in the house, things are never going to be 100 percent perfect in that department but this air purifier has made significant improvements. I also wake up a lot less with puffy red eyes or a scratchy throat. For the price point - neither cheap nor extremely expensive, I honestly do feel that Alen FLEX may be the best (if not, one of the best) options on the market, and is a wonderful combination of effectiveness and good design. On the downside? It can be a bit loud when on the highest setting, which may be an issue for those interested in placing it in the bedroom like we do. Not overly loud but it depends on your personal opinion/perception of what constitutes "loud" for such a machine. Personally, I don't really notice the noise anymore - it's almost like white noise in the background. And I think that if it's bothersome at night, you can put it on the low setting, which significantly reduces the noise when you sleep. ... show more
Reviewed in the United States on March 14, 2021 by Natalie Faye Fern Natalie Faye Fern

  • The Sexiest Little Air Purifier That Could
Color: White Size: Dust, Mold, Pet Odors Style: Filtration
The media could not be loaded. I am so allergic to dust that if the power goes out in my home, I need to go sit outside until it comes back on and all the air purifiers in my home come back online. Over the years, I have collected quite a collection of air purifiers as we’ve moved from smaller to bigger homes and my allergies have turned into full-blown allergic asthma requiring weekly then monthly shots and daily medication consisting of both pills and inhalers. I buy exclusively from two brands, IQAir and Alen having given up on Blueair altogether in favor of Alen. I own (2) IQAir HealthPro air purifiers and (1) IQAir HealthPro Compact, which I use in our two bedrooms and our living room. Our home has an open layout with a lot of room to cover and so we use a Alen BreatheSmart in our kitchen (with the handy HEPA-OdorCell filter), another in our main room of our back house. I also own (2) Alen T500s, which we use in our back house bedroom and for travel, one of which I received from Alen to test and keep. Vistors are often shocked by the amazing air quality in our home. It's fresher inside than the great outdoors of Los Angeles. I haven’t tried the Fit50, the now middle child of the BreatheSmart line so I’ll be comparing the Flex primarily with the original flagship BreatheSmart model. The first thing I noticed was how SEXY the Flex is and how much more compact it is than the original BreatheSmart while still feeling quite and if at all possible, more sturdy. It comes in a giant box that’s easy enough to open and is reminiscent Amazon’s frustration-free packaging. The front panel of the Flex is weightier than the BreatheSmart's and lined with gray plastic and I believe all over magnetics so it need the annoying hinges that the BreatheSmart does. Overall, the materials used look similar but look and feel much improved. The brushed metal surfaces feel quite nice against your skin if you’re planning on cuddling with it. (Kidding.) The darker silver finish and white front are truly aesthetically pleasing. The display is also fantastic with it’s a flat sleek surface with a touch display that is a vast improvement on the clunky push-down buttons of the original BreatheSmart. You can shut off the display lights or keep them on. Also, unlike the BreatheSmart, it offers the same Lock function as the Fit50 which is really useful if you have a little toddler who loves to those push buttons on the original air purifier. Like the other models, the Alen will tell you when your filter is still good (green), when you should order a new one (yellow) and when you’re filter needs replacing (red). At the lowest setting, the Flex is pretty much silent while the third is barely a whisper with the fourth Turbo mode setting is loud but softer than expected but this last setting is really the one you’ll only use when you need to get a room de-dusted quickly, like say in your hotel room, new home office or while staying in the dust mite haven that is your mother-in-law’s really, really dusty back house. The Flex is 15 pounds so it’s almost twice as heavy as the portable travel-friendly Alen T500 tower, which is 9 pounds, but smaller than the 21-pound BreatheSmart and only a pound lighter than the Fit50. The Flex is also stripped down as far as some features that both the BreatheSmart and Fit50 have: the ionizer is gone on the new Flex, as is the SmartSensor, Air quality feedback light and Automatic mode. I'm not sure I personally could not live with the automatic mode which decides on its own what setting is necessary or the SmartSensor that tells me in different colors that the air quality in a specific room is great or really poor. It is also not energy certified and the CADR results are still pending and uses 36 watts on the highest setting whereas the BreatheSmart uses 105 and the Fit50 uses 60. The Alen promises the same filtration rate as all the BreatheSmart models: 99% of particles great than 0.3 microns eviscerated keeping you safe from those dust mites. The filter life is paired down to 6-9 months, a sharp decline from the Fit50’s 10-12 months (awesome!) but only slight change from the BreatheSmart’s 8-9 months. The powers supply comes in at 115V instead of the 120V of the other models. The Flex is recommended for average size rooms up to 700 sq. feet so it falls between the Alen T500 (up to 500 sq. ft) and the Fit50 (at 900 sq. ft) with the BreatheSmart offering the most coverage of up to 1100 sq. ft for large and open spaces. Like all the Alen air purifiers, it comes with the standard HEPA-Pure filter which is the base filter available with the same three options getting slightly more expensive: the HEPA-Silver, HEPA-FreshPlus and HEPA-OdorCell. The HEPA-OdorCell is truly brilliant in the kitchen, where smoke or garbage might cause some terrible smells, and a baby’s room where a diaper pail might do the same. Unlike the vastly more expensive 10-year warranty on the IQAir, which Alen rightly deems “overkill” for most people and their homes, the Alen has a lifetime warranty and they truly stand by it. I had problems with the T300, which the T500 replaced, and received a whole new air purifier each time as a replacement. After being offered the Alen T500 to test by Alen when it first came out, I sold my T500s and bought a second T500 and a third for a friend. If I didn’t already have the top of the line BreatheSmart with the less awesome display, I would really consider this little Flex in my bedrooms. Alen is the air purifier I recommend to anyone with basic allergies or allergic asthma like myself who cannot afford the louder, bulkier, energy-sucking and more complicated and expensive filter requiring energy-sucking IQAir. The IQAir is $200 more than the BreatheSmart’s $599 price tag and the Flex comes in at $399 about a $100 less than the listed price for the Fit50. And last but not least, the Alen Flex offers 14 designer panels to “complement” your décor just like the BreatheSmart and one more than the Fit50. We plan to take advantage of this feature for the first time with the Flex as we will be using this model in the small office where my husband works. The Flex has also made me more curious about the Flex and left me wondering if Alen has plans to upgrade the display on the original flagship model. I highly recommend the Flex and ALL the aforementioned Alen air purifiers. ... show more
Reviewed in the United States on February 15, 2017 by Aliza Hausman

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