Corsi-Rosenthal Boxes with “Used” MERV 13 Filters Can Produce Cleanroom Particle Levels

Jim Rosenthal

Corsi-Rosenthal Boxes can produce extremely low particle counts, whether new or used filters are in place. Air Flow is important, and MERV 13 seems to be just right for capture. The results of using two box filters can result in clean-room level clean air.

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