Tecnosun is an Italian company based in Brescia, and has created the "Aerosal" project. With this unique patent it became more and more famous in the beauty and SPA world. The idea of "la Grotta di Sale" (Salt cave) was born to offer a new approach to global wellness.

The benefits of Aerosal have always been well-known. In 1843, doctor Felix Boczkowski started studing and practicing halotherapy (Halos = salt, in Greek), a natural therapy consisting in inhalating micronized sodium chloride produced by a special spray-dispenser in a special confined habitat - the salt cave - in which walls and floor are covered in salt simulating the microclimate in a salt cave. This microclimate keeps stable humidity (40-60%) and temperatures (18-24° C). The room is hypoallergenic and the salt keeps the air almost bacteria free. Salt particles sprayed in the room are small enough to reach all sections of the respiratory apparatus. Use of Halotherapy battles all respiratory diseases but it is also useful in other diseases such as cystic fibrosis, and studies demonstrates its effectiveness in curing dermatitis during childhood. Halotherapy normalizes skin diseases.