Air purifiers are the same. A HEPA filter, a fan, and an expensive unnecessary f... | Hacker News

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faeyanpiraat on Feb 2, 2021 | parent | context | favorite | on: What’s Wrong With The Honeywell Humidifier

Air purifiers are the same. A HEPA filter, a fan, and an expensive unnecessary fancy looking plastic box.

I've made my own aswell.

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