Re:Experiments on a $50 DIY air purifier (2020)
by hinkley on Thursday September 02, 2021 @04:21PM
(#28396868)
How many purifiers have you bought?
The custom purifiers always have proprietary filters. That’s where they make their money. It isn’t $40 difference, it’s $40 per year. Often more. And once they stop selling that model, they’ll discontinue the filters and so you’re buying another one. And another. And another. Each with its own problems that you have to live with or shop around for, which means more purifiers purchased while sorting it out.
The custom purifiers always have proprietary filters. That’s where they make their money. It isn’t $40 difference, it’s $40 per year. Often more. And once they stop selling that model, they’ll discontinue the filters and so you’re buying another one. And another. And another. Each with its own problems that you have to live with or shop around for, which means more purifiers purchased while sorting it out.