Not to forget, you'll have a looming black octagon after 6 weeks or so already d... | Hacker News

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		mxfh on June 3, 2022 \| parent \| context \| favorite \| on: Ceiling Air Purifier Not to forget, you'll have a looming black octagon after 6 weeks or so already depending on your environment. At least a reminder, that the filters are doing something useful.

jefftk on June 4, 2022 [–]

I've been running a filter cube in my office 8hr/day since November. It's a bit grey, but far from black.

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