#IAQ Fan Fixture Zones w/ estimated performance (800 square inch MERV-13/fixture assumed), compared to ASHRAE proposed standard:
It seems I'm vastly underestimating the surface area of a 20x20x4" filter. Which is good for performance I suppose but makes estimating (with spreadsheet) confusing.
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It seems I'm vastly underestimating the surface area of a 20x20x4" filter. Which is good for performance I suppose but makes estimating (with spreadsheet) confusing.