Credit where credit is due: I bought an Alen 75i air purifier back in 2019. Recently, the control panel stopped working, and I braced myself for the usual hassle of dealing with customer service. Instead, I was blown away. All I had to do was provide the serial number and proof of purchase from Amazon—and to my surprise, they replaced the entire unit at no cost.
We’re talking about a $500 air purifier, completely replaced. That kind of customer service is rare these days, and Alen absolutely delivered.