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The introduction of shield supports early in the seventies caused, in addition to advantages concerning safety and the effectiveness of supports, also an increased dust development in the face. Within the above project, it was tried to develop measures to reach a reduction of dust development by 50%. As such measures, water spraying, dust extraction and sealing of gaps between the individual shield units were tried. Different geological conditions and different types of support were included in the investigations. In the majority of the eleven investigated coal faces, the aim of the reduced dust development was reached by water spraying. Installations ready for application in practice were developed. Dust exhaustion requires intensive fundamental investigations before being tried in practice. The Technical University of Clausthal will continue to deal with this part of the project. No suitable material could be found so far for the sealing of gaps between the individual shield units. It is recommended that dry dust suppression methods be developed, as present measures of wet dust suppression have disadvantages. (ERA citation 05:028347)