Inside the Data Centers it is necessary to have an electrostatically neutral environment that minimizes in first place tuncontrlled static charges nad last but not least the accumulation / attracion of fine dust + powders conveyed by the operators working in these environments. Therefore, it is essential to have an anti-static flooring but just as vital is the control of dirt and fine dust that shoes can carry from outdoor environments and then carry more and more inside the critical departments where hi-tech and expensive computers are then stored. For this purpose, in this case study, the customer requested the installation of multiple decontamination zones with washable dust mats which also have excellent antistatic characteristics (Rs 10E8-E9Ohms) and which can drain the accumulated residual electrostatic charges to a main ground facility. The washable decontaminating mats ( https://www.acsupply.it/en/products/cleanroom/item-359 ) actually retain dirt without hindering in any way the normal transit of internal and external operators and customers / visitors. Their daily maintenance is simple and completely similar to the cleaning of a normal floor for office corridors. The laying instead provides the use of dry adhesives and therefore is normal execution without downtime. For external operatrors and goods at the incoming a different klind of mat is choose to prevent wet and coarse dirt, the DRY ROLL MAT ( https://www.acsupply.it/en/products/cleaning/item-1525 ), with a self adhesive bottom layer that enhance its very easy install by the cusomer itself.