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Figure 9 – System Performance Curves (without Filters)
Flow – CFM @ 60 Hz
Added Static @ Filter 600 CFM 1000 m
3
/hr
Filter Inches W.C. Pascals
99.97% DOP HEPA 1.00 250
95% DOP 0.35 87
90-95% ASHRAE 0.20 50
80-85% ASHRAE 0.15 37
60-65% ASHRAE 0.10 25
45-55% ASHRAE 0.05 13
Impinger 0.15 37
Aluminum Mesh Pre-Filter 0.05 13
Glass Pre-Filter 0.00 1
** To determine performance with various filter combinations, add total static of filters (from table)