uls is a small and light atmospheric plasma processor designed for surface treatment of any material (polymers, metals, glass, fabrics,) of any shape. the plasma head generates air plasma whose shape can be adjusted from ......uls is a small and light atmospheric plasma processor designed for surface treatment of any material (polymers, metals, glass, fabrics,) of any shape. the plasma head generates air plasma whose shape can be adjusted from a spot to a small curtain. radicals and metastable species in the jet stream react chemically with the processed material. the plasma is created by an electrical field developed between coaxial electrodes. a high frequency, high voltage is controlled by the generator. the system is completely safe for the operator.