Abstract: A drive-up teller window protection apparatus which includes a plurality of downwardly directed nozzles connected to a fluid distribution system supported and housed in a roof structure extending outwardly from a drive-up teller window and positioned a distance above the ground sufficient to allow automobiles to pass thereunder. The fluid distribution system is connected to a fluid reservoir via a conduit having a pressure relief valve and a one-way check valve interposed therein. A source of pressurized fluid communicates with the fluid reservoir via a conduit having a remotely operated valve, a two-way valve, a one-way check valve and a pressure relief valve interposed therein. A second conduit communicates between the two-way valve and the fluid distribution system and includes a one-way check valve interposed therein.