This model calculates the flow coefficient of the filter by
dpCor = brat,
where b is the flow resistance coefficient, which
must be greater than 1, rat is the relative
mass of the contaminant that is captured by the filter as described
in
Buildings.Fluid.AirFilters.BaseClasses.FiltrationEfficiency.
Qiang Li ta al., (2022). Experimental study on the synthetic dust loading characteristics of air filters. Separation and Purification Technology 284 (2022), 120209.