Abstract: A barrier filter useful for aseptically discharging both gaseous and liquid fluids from a chemical process system is disclosed The barrier filter comprises, within a common enclosure, one or several filter membranes having singularly or collectively a mixture or hydrophobic and hydrophilic regions. The common enclosure of the barrier filter is provided with a fluid inlet and a fluid outlet. All filter membranes are located within the fluid path between the fluid inlet and the fluid outlet. A variety of membrane-based systems, into which such barrier filter is installed, are also disclosed.

Abstract: The present invention provides filters comprising supports (55) that are relatively flat. They may have knife seals (54, 56) or convention edge seals and porous fibrous media (58) is positioned there between and methods of manufacturing filters. The media may also be relatively flat providing for a self supporting non-lenticular filtration structure.

Abstract: A barrier filter useful for aseptically discharging both gaseous and liquid fluids from a chemical process system is disclosed The barrier filter comprises, within a common enclosure, one or several filter membranes having singularly or collectively a mixture or hydrophobic and hydrophilic regions. The common enclosure of the barrier filter is provided with a fluid inlet and a fluid outlet. All filter membranes are located within the fluid path between the fluid inlet and the fluid outlet. A variety of membrane-based systems, into which such barrier filter is installed, are also disclosed.