Humages are characterised by the use of natural gases obtained from thermal water using specific technical methods or released by the water spontaneously. This is why humages are also called emanations.

Radioactive and in particular gaseous water contains the highest level of gaseous emanations.

Humages are useful for treating respiratory problems and can be used by both individuals and groups. When used collectively, thermal spas set aside a specific room or area for the inhalation of thermal gases.