… hand drying systems are used in public administration. last update on 21.01.2022 In 1993, the German Environment Agency tested different hand drying systems in a … were included in the assessment in addition to the hand drying systems assessed in 1993. They even achieved the best assessment in the simplified consideration. Jet … towel rolls: these hand drying systems are used in public administration. … In 1993, the German Environment Agency tested different hand drying systems in a …