Danaher is a company that designs, manufactures, and markets professional, medical, industrial, and commercial products and services. It operates through four segments: Biotechnology, Life Sciences, Diagnostics, and Environmental and Applied Solutions. The Biotechnology segment includes the bioprocessing and discovery and medical businesses and offers a range of tools, consumables, and services that are primarily used in the research, development, manufacture, and delivery of biological medicines. The Life Sciences segment offers instruments and consumables that are used by customers to study genes, proteins, metabolites, and cells, in order to understand the causes of disease, identify new therapies as well as test and manufacture new drugs and vaccines. The Diagnostics segment provides analytical instruments, reagents, consumables, software, and services in the areas of the clinical lab, critical care, and anatomical pathology diagnostics. The Environmental and Applied Solutions segment delivers water quality and product identification equipment, software, services, and consumables.