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by Wistar
1482 days ago
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I built a couple purifiers using a box fan atop a cube made of four HEPA (MERV 13) 20x20x2 furnace filters. Inside the cube, I hung two UVC lamps, one merc vapor at 254nm and one LED-type at "far uvc" 222nm, in the hopes it would kill some of the bad things but question whether the air in the chamber is there long enough for a good kill. None of us in my household has contracted Covid but that may just be luck. |
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