Higher levels of humidity in Bio Sauna mean that the entire body is moistened. The relaxing action of heat enriched with higher humidity has a beneficial, caring effect on the hair, skin and respiratory system. The combined heating system allows different herbs to be added to the evaporation bowl. The steam softens the herbs, releasing their natural scent which is then introduced to the sauna cabin. Essential oils can also be used, depending on the design of the particular system. The temperature in the bio sauna is approximately 60 to 65 °C, with a humidity level of 55 %.