Hygienic entrance. When the staff enter and put the hands inside the wash station a washing with soapy water takes place. When they pass through the rinsing station the rinsing with water takes places. They dry the hands with a paper towel and throw it to the inferior wastepaper basket. Then they go to the hands sterilizerstation, that allows the motorized bar to open, once the process is done. On the ground level, when the staff enter, they pass through a pool of water with sterilizer and through the interior of soles washer (that may be stopped or in march). When the staff finish the work and go out of the work sale and enter to the sanitary pass, a time-lag photocell starts up the washing machine of soles connecting the brushes and the water. In this direction the barrier is of free step. The soles are washed as the staff is walking by the interior of soles washer and then they are sterilized in the pool. It includes a locked cabinet containing the electrical box with place for chemical tank. On output, on one side, we have a stand to place a deposit 25l soap. used to wash the soles.