The 4000 MiD brings together two fields, chemical analysis and silicon micro-engineering. Its small footprint makes the instrument deployable in a range of applications that mass spectrometry traditionally has not been able to reach. The 4000 MiD fits comfortably into a standard lab fume hood. Users are able to increase the use of mass spectrometry in the lab because fewer structural components such as gas generators and air conditioning are required. Plug and play components also enable users to maintain the system themselves.