SAUNA Sauna, the centuries old bath from Finland, is the body's natural way to cleanse itself through perspiration. The necessary ingredients of a true sauna, which are found at TONE, are: A properly insulated room lined with clear softwood. A good heater which is capable of heating the room to temperatures of 165 to 195 degrees F; and one which heats the stones directly, to provide a soft, gentle heat and instant steam when water is pourd over the stones. This steam is necessary to induce perspiration, cleanse body pores and to create a pleasant climate. Sauna is the only bath in the world where dry-heat and humidity are present at the same time: thus promoting a deep cleansing of the pores. The high heat and humidity open the pores and promote profuse perspiration. This perspiration flushes out the body's impurities (even nicotine from a smoker's body)