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3.0 / 5
Average user rating
51
Total reviews
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alencorp.com Reviews
Read real experiences from customers of alencorp.com.
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Octavia
November 15, 2025
Greed tanks another company
Initially, my Alen was fantastic. AND THEN. For context, I have chronic illnesses and am neurodivergent. I needed an air purifier that would last and not be noisy. For a couple years after I bought my 45i, I thought I'd found it. And then they decided to change the filter design by making the pre-filter built in. Why? So people can't change the pre-filter, so they have to buy a whole new filter more often. Greedy AND wasteful. The build-in pre-filters are also WAY, WAY louder. That was bad enough, but my 45i started making a weird, awful sound -- I'm guessing they didn't do much testing on the older model with the new filters, because when (after 6 weeks of emails) they finally sent me a new one, it ALSO soon started making the awful noise. The ONE good thing I have to say about the company (or really the CS person I was talking to at that point) is that they quickly sent me out a new one after that. Unfortunately, it only gets worse from there. The new machine they sent is the newer model of 45i, and it is SO. LOUD. It makes this god-awful high-pitched whining noise that sets my teeth on edge. Given the so-called "Forever Guarantee," (which, surprise!! they've added a lot of conditions to), I expected this to last me at least 10 years, or I never would have shelled out so much money for it. The amount of my time and money this company has wasted is actually absurd.
Deidre Conner
November 1, 2025
ALEN 45 I machines
I purchased 2 ALEN 45I purifiers when on sale. They come with a fantastic filter that gets replaced every year. When you sign up for automatic replacements, they confirm the date of your 1st filter and set your arrival date accordingly. PLUS by doing so you get a LIFETIME WARRANTY on your machines AND a 15% discount for your filters. I decided to upgrade to the filter that can filter wood smoke like forest fires in case it happened again in our area.The 45I has an amazing computer chip that is SO sensitive that if I walk past it with some kind of fragrance on the indicator light changes from green to blue.When I cook the kitchen smells turn the indicator light to RED indicating there are harmful particles in the air!!!I also have one in the BEDROOM. Wow! What an improvement in sleep quality. NO MORE waking up with a stuffy nose! We LOVE, LOVE, LOVE our machines.For those reviews who were frustrated and confused about their filters, I was too! Sooo you PICK UP THE PHONE AND CALL CUSTOMER SERVICE! They will tell you what to get and place the order for you! NOTE: I am ALWAYS POLITE & am never rude to someone because their website was overwhelming.
Michelle
September 30, 2025
Doesn't work as well with the new filter design
I purchased several of these air purifiers and was very impressed with the original design. The units were easy to maintain and highly effective. The pre-filter in the earlier version attached with velcro, which made it simple to replace and significantly extended the life of the main filter. Unfortunately, the company changed the design to an all-in-one filter system. The new pre-filter is mesh and it does not perform as well and requires frequent vacuuming to maintain. Not only is this process inconvenient and labor intensive, but it also fails to clean effectively compared to the original design. If the company had continued offering the previous style of pre-filter for existing customers, this would not have been an issue. However, since that option is no longer available, the product has become much less user friendly and far less efficient. I'll swap them out for Blueair, their products are rated about the same and have a washable pre-filter.
Elliott Greenberg
June 11, 2025
Alen Air is amazing
Alen Air is amazing! They really stand behind their lifetime guarantee. I've had my purifier for over 6 years when it started squeaking. I tried all the suggested fixes, and the squeaking did not stop. They sent me out a brand new machine!First, I love the air purifiers. I have kids and a dog, and I truly believe these are good for our health. And my home never smells.Second, the customer service is amazing. If you are looking for a great purifier, you have to get an Alen.
Dahlea
November 18, 2024
These are really high quality air…
These are really high quality air purifiers that blow away every other purifier I have owned. I have a high allergy to pollen and can definitely feel the difference. They are much more quiet than the other purifiers I have owned. I love how you can see the color ring change so you know it is working, and the auto mode keeps the air always perfect. You can also download the app and see the graph for the exact air quality at any time.
Kelly Marsh
May 17, 2024
This company is the WORST
This company is the WORST! They do not have the size of the filters on their website. And i can't make heads or tails out of which one will fit my machine. I ordered the wrong filter multiple times because i can't tell which one fits my machine. I can't get through on the phone. the chat is a stupid robot that cant answer my question. The email seems to go to a robot and I cant get an answer for the correct filter replacement. DO NOT WASTE YOUR MONEY!
Diana Choi
November 8, 2022
DEFECTIVE 2x
Purchased the I-75 last year and upon arrival, when plugging it in, it was defective. I returned it and cancelled the subscription for the filter. I just received a filter for that device I no longer own. Had to call customer service to get a Return label. Never received it via email so called again. This took 30 mins on the phone .. ABSURD!Thought I'd give them another chance...I took advantage of the BOGO deal and purchased 2 devices... One of them is DEFECTIVE AGAIN! So whatever you purchase full price or discounted, I'm 100% getting a defective item. Who does quality control here? This device has no remote control, and the app sucks. Customer service agents are a hit or miss. I'll pass
Normand
July 2, 2022
Top notch product and service
Our Alen Air Purifier suddenly stopped working after an electrical power surge. We called the company and a tech had us try several things to start it again. Nothing helped. He asked how long we had had it and we thought 5 years. He looked us up in their system and discovered it was 8 years old. After checking our information he told up to expect a replacement, after Independence Day. Amazingly it arrived today, less than a week from calling.Please understand this was still covered under the warranty, that the technician was extremely helpful and concerned and we have always been delighted with the unit's preformance.I highly recommend this company and their product.
Linda L
September 10, 2021
I haven’t even plugged the product in…
I haven’t even plugged the product in yet, but I had to review the company right away. So far, this experience has been phenomenal! I haven’t had customer service like this in quite some time! I received multiple emails keeping me updated on the progress. It even arrived sooner than I expected. I appreciate their dedication to an excellent customer experience.
Karen
October 9, 2020
Alen - Outstanding Purifiers and Company!
We purchased a unit directly from Alen Corp about 5 years ago. The unit had an issue with the fan speed. Alen Corp simply had us send a photo of the unit and a cut cord. A replacement is being shipped out asap. We have loved and used our until almost daily since its purchase! Love these purifiers and Alen customer service is outstanding!!!
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