Filters for use with apparatus for ventilating; Membrane filter cartridges for the separation of biomolecules in biopharmaceutical production; Filters for fluids, namely, for water and area-water solutions; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filters for use with filtered showerheads; Metal cylindrical chamber and screen for use in filtering and removing settleable solids from liquid; Apparatus for the separation of liquids bein...