In the rooms we live and work, the relative humidity percentage of the air should be around 35-55%.
Excessively humid environments can generate superficial condensation and favour the proliferation of mould and bacteria as well as heighten the sensation of sultriness in the summer. Excessively dry environments can also cause respiratory problems (cough, dry mucous membranes).
Thanks to its hygroscopic properties, raw earth is by far the best regulator of natural humidity.. t acts as a "lung" capable of absorbing excess atmospheric humidity, releasing it again when the environment becomes too dry.
To preserve hygrometric comfort, it is important to choose natural solutions with high vapour permeability, which allow the passage and absorption of gas, avoiding the formation of condensation and interstitial mould.