IERV - What does IERV stand for? The Free Dictionary
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Bypass and Duct Leakage Flow Ratios and Efficencies Site/Filter ID Bypass Flow Return Duct Effective Effective IERV
Ratio Leakage IERV
with Bypass [[Q.
It should be noted that Table 1 is used for determining both IERV and MERV.
IERV and MERV for Constant Pressure Drop Full Tests Filter Type IERV MERV with Pybass MERV 7 6 6 MERV 14 12 11/12
For the MERV 7 filter, IERV is reduced from a 7 to a 6 for the straight and U-shaped bypass tests.