How does the box stack up against the NYC filters installed in school?

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    Better.  NYC’s CADR for smoke was 129.  The Corsi/Rosenthal Box CADR was 132. And that was with MERV 10/11 filters.  The Corsi/Rosenthal Box should be made with MERV 13 filters, so will test even higher. These measurements are in process.

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