As such, any type of fluid, such as any type of gas or liquid, may freely flow between the first and second cells 20, 24 without any obstruction. [0034]FIG. 2B depicts a cross-section at line A-A of first and second honeycomb layers 12, 14 positioned as shown in FIG. 2A. The purposeful misalignment of the first and second cells 20, 24 therefore results in a fluid flow path 28 between the first and