Abstract: Apparatus for use in a shower stall to simulate a steam bath. In one embodiment the apparatus comprises a diverter valve adapted to be connected between a conventional shower head in the stall and the pipe carrying hot water thereto. A flexible conduit is connected to the diverter valve and includes nozzle means disposed at the free end thereof. The nozzle means includes an orifice producing an aerosol mist of a multitude of fine droplets of hot water in a well defined flat pattern. The nozzle means is mounted with respect to the walls to cause the spray pattern to impinge the wall at an angle and produce a cloud of fine hot water droplets simulating live steam. The nozzle is constructed to produce a large volume of water droplets from a small volume of hot water.In another embodiment the nozzle is permanently mounted within the stall via a pipe extending through the wall of the stall and in fluid communication with a hot water pipe of the building in which the stall shower is located.