Abstract: A far infrared rays sauna bath assembly includes a small prefabricated construction assembly for easy carrying and construction and several ceramic plane surface exothermic heaters having a very thin thickness about 1 mm of which occupy a minimum area when mounted and provide further radiation available for a large evenly radiation heating with an effective heat ratio. A height controlling shower machine is available to control the height for a user. An air dryer for full body drying a finger pressure cushion palette having multiple protrusions for finger pressure therapy and a discharge for bottom drain water are included. An air discharge door for steam venting and heat control, a stereo music amplifier and cassette and a golden (coin inlet) timer for business charges may also be provided.