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by happyopossum
1483 days ago
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> I never understood the purpose of the bottom filter in the Corsi-Rosenthal Box It's for when the box fan is not sitting on the floor - either raised up on feet (which many have), sitting in a window, or hung somewhere. That said, you're right - 4 packs are easier to come by and probably work nearly as well in the real world. |
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