The wood, after a careful selection, is sterilized in the laboratory. It is completely dried in a vacuum chamber. The wood acquires hardness, strength, hygiene. The thermal vacuum is a patented process that allows to achieve high drying standards with the maintenance of the mechanical properties of the wood, as well as  saving  time, energy and polluting gas emissions, because it does not use gas or steam to heat and cool the wood, but only a system of heat exchangers with the indoor air.