Alen CorporationReviews of alencorp.com

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.

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.

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!