A web can comprise a substantially continuous fiber mass and a separation
means dispersed into the fiber. The web having a preferred thickness
resulting from forming a polymer material and a particulate into a fine
fiber layer can have a variety of end uses. A filtration media can
include a structure comprising such a web of fine fiber and a substantial
volume of particulate embodiment of the separation means. The resulting
fine fiber structure provides an improved filtration medium having
substantial depth, thickness, and a layered structure. The improved
properties of the web results from inclusion of the separation or spacer
particulate.