Euromme® EDC air blower is developed to break up stratified heat, humidity and stagnant air. The unique propeller design is self-cleaning and, together with airflow rectifiers, allows the highest efficiency to be reached. The round housing and air flow rectifiers are made of a strong galvanised sheet-steel. The 6-blade propeller is statically and dynamically balanced for low noise and low vibration. To improve aerodynamic efficiency, the air blower has been developed in the R&D test chamber of Munters, which has been built according to ANSI/AMCA 210-85 Figure 15 specifications. Construction details and airtightness have been verified by personnel of the BESS Lab at the Agricultural Engineering Department, University of Illinois – USA.