philipn / Corsi-Rosenthal Cube 59bbd3e647b70594773824eba53c71059808f478

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A Corsi-Rosenthal Cube. This cube was constructed with 4 MERV-13 filters and a cardboard bottom.

The Corsi-Rosenthal Cube (sometimes called a Comparetto Cube) is an inexpensive, do-it-yourself air cleaner that can be easily constructed out of a box fan and MERV furnace filters.

Construction guide

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