As a general rule, it is recommended at least once a year to clean the DISEGNA® wood thoroughly with disinfectant soap and a bristle brush (never wire brush) and rinse the surface with plenty of water to prevent the formation of bristles.
Depending on the conditions and location of the installation (areas with vegetation, shady areas with high humidity, etc.) these may favour the growth of fungi and moulds on the surface, so it is recommended to remove them by using Salfumán (10-15% concentration in HCl) and with the help of a bristle brush rubbing over the surface and rinsing with plenty of water to avoid the formation of fences.
Just like any other material: clothes, upholstery, etc., when a cleaning product is applied to a specific area, this cleaning will not only remove the stain, but also all the dirt and dust deposited on that area. Therefore, the area that has been cleaned will be left with a lighter tone than the rest.
The light shade of the cleaned area will re-homogenise with the rest of the shade within a short period of time. In all cases, after using cleaning products, be sure to rinse with plenty of water and wash the dirty water away to avoid the formation of rims around the treated surface.