Technique aimed at ensuring that the beneficial effects of the waters reach the respiratory tree in a general manner, and particularly the lower respiratory tract. It is based on the inhalation of vapour and thermal waters for the treatment of respiratory aliments. This is a very effective technique for help in stopping smoking, and for allergies and childhood asthma, etc.

This technique involves inhaling thermal waters, and is based on the same principles as spray, although in this case the size of the mineral-medicinal water droplets is much smaller, and the water is administered in a state immediately prior to vaporisation. The diminutive droplets of thermal water settle and bathe the upper respiratory passages, acting specifically on complaints of the throat, tonsils and pharynx.

Its use is particularly recommended in ailments of the upper respiratory passages, although they may also work satisfactorily in the middle and lower passages.

Inhalation technique also known by the name of humage, which consists of directly breathing in the gases and vapours which emanate naturally from certain hot springs when the mineral-medicinal waters emerge from the ground.

Steam room is also the name given to the premises themselves, whether this is a natural gallery, or an artificial cave of the type found in many spas, and is designed to maximise the gas emissions where they are administered without any alteration in the temperature or the degree of vaporisation at which the gases emerge.