An air halo nozzle assembly for a spray gun assembly , the spray gun assembly including a fluid supply assembly and an air supply assembly , said air halo nozzle assembly comprises a liquid nozzle assembly , wherein: said liquid nozzle assembly includes a body and a valve assembly ; said liquid nozzle assembly body defines a passage and a liquid outlet , said liquid nozzle assembly body passage being in fluid communication with said nozzle assembly body liquid outlet ; said liquid nozzle assembly body passage being structured to be coupled to, and in fluid communication with, said fluid supply assembly ; said liquid nozzle assembly being structured to produce a liquid flow stream from said liquid nozzle assembly body liquid outlet having a longitudinal axis ; the valve assembly including a valve member that with a valve seat forms a liquid valve , wherein the valve member is moveable from an open position, in which the valve member is spaced from the valve seat to a closed position, in which the valve member engages the valve seat to cease the liquid flow stream ; wherein the air halo nozzle assembly includes an air halo assembly including a body ; said air halo assembly body defines a passage between a hyperbolic outer surface of the liquid nozzle assembly body and a tapered inner surface of the air halo assembly body ; said air halo assembly body passage includes an inlet and an air halo outlet said air halo outlet being disposed about said nozzle assembly body liquid outlet ; said inlet being structured to be in fluid communication with said air supply assembly ; and wherein said air halo outlet is configured to create a defined, elongated gas flow that extends about and immediately adjacent said liquid flow stream such that said elongated gas flow is disposed about said liquid flow stream . said liquid nozzle assembly includes a body and a valve assembly ; said liquid nozzle assembly body defines a passage and a liquid outlet , said liquid nozzle assembly body passage being in fluid communication with said nozzle assembly body liquid outlet ; said liquid nozzle assembly body passage being structured to be coupled to, and in fluid communication with, said fluid supply assembly ; said liquid nozzle assembly being structured to produce a liquid flow stream from said liquid nozzle assembly body liquid outlet having a longitudinal axis ; the valve assembly including a valve member that with a valve seat forms a liquid valve , wherein the valve member is moveable from an open position, in which the valve member is spaced from the valve seat to a closed position, in which the valve member engages the valve seat to cease the liquid flow stream ; wherein the air halo nozzle assembly includes an air halo assembly including a body ; said air halo assembly body defines a passage between a hyperbolic outer surface of the liquid nozzle assembly body and a tapered inner surface of the air halo assembly body ; said air halo assembly body passage includes an inlet and an air halo outlet said air halo outlet being disposed about said nozzle assembly body liquid outlet ; said inlet being structured to be in fluid communication with said air supply assembly ; and wherein said air halo outlet is configured to create a defined, elongated gas flow that extends about and immediately adjacent said liquid flow stream such that said elongated gas flow is disposed about said liquid flow stream . <EOS>