Relyon plasma based in Regensburg, Germany, a subsidiary of TDK Electronics, presents the world's smallest and highly effective plasma handheld device piezobrush® PZ3 with PDD® tech-nology. It is used for the simple, efficient and mobile utilization of cold atmospheric pressure plasma for surface treatment of plastics, metals and natural materials. The plasma treatment activates, functionalizes and cleans surfaces. This significantly improves the quality of subse-quent processes such as bonding, printing, varnishing or coating.