Gas Mixing Systems are required for scientific purposes to investigate reactions of materials, plants, or micro-organisms. The requested mixed gases can be generated individually using our Gas Mixing System. Complex solutions have been implemented for DLR Berlin and for the Institute of Natural science (BOKU) in the University of Vienna. Here, extreme environmental conditions can be simulated, for which mixed gases of varying composition and with a humidity content ranging from trace moisture up to high humidity can be generated.