To use Table 1, find your ceiling height and then move cross to your room width and then room length.
The CFM on Table 1, is a calculated amount and in most cases you will not be able to find an exhaust fan that has the exact CFM value.
Treat these values as minimums and purchase the exhaust fan with the closest CFM rating above the number in the table.
Table 1 must be used in conjunction with the EDL (Equivalent Duct Length) calculation and table.
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