Since 1991, technology-oriented particle analysis and sensor systems have been developed, designed, and manufactured under the name Topas. In the past thirty years, we have established ourselves as the specialists for generating, conditioning, and analysing test and reference aerosols. In the process, we have grown to be a mid-sized company, contributing to global industry and research from Dresden in Germany. For decades, our products and test systems have established the name Topas as the standard for the classification and testing of filters and filter media.Complete systems are ready for demonstration at the Topas Innovation Center.