Target in this case is to control and minimize the viable dust and dirty contamination when accessing and EPA zone. Ultra thin LTE mat are placed into ESD shoes test areas where both operators and temporary visitors have to pass before accessing the assembly and production line zone. 1.2×5.0m leght of each mat is offering the best cleaning action for shoes’s soles. No other solution ( i.e. Peel- Off mat ) could do this any better. Clean soles will finally offfer a reliable ESD test reducing any residue left on the dual metal plate also in the past while minimizing the viable contamination into the clean area.