An application serving system is disclosed that comprises a target client computer that connects to a server system and subscribing institution host Web Server, over a network. The halogenated elastomer can be a polymer comprising C4 to C7 isoolefin derived units, para-methylstyrene derived units, and para derived units, or can be a butyl-type rubber. The filter element comprises a primary coalescence medium which is provided for coalescing of the at least one contaminant in the primary coalescence medium.