The present invention provides an ozone emitter, which can continue to emit ozone gas for a long time, which can continue to exert effective detergent and bactericidal action due to ozone gas for a long time, and which is easily portable, a method and equipment for producing the ozone emitter, and a method for utilizing the same. The ozone emitter is provided in such a manner that ozone gas is filled into a container which is obtained by forming an ozone gas impermeable film material in a container shape, wherein the film material is provided with a number of fine permeable pores through which molecules of ozone gas can permeate.