Gelman Sciences Inc is a world leader in the development, manufacture and marketing of technologically advanced microfiltration products, including complete filtration systems, biomedical devices and medical diagnostic equipment for the international healthcare, laboratory and process industry markets. The company has manufacturing operations in Michigan, California and Florida, with subsidiaries in England, Australia, Canada, Japan, Ireland, France, Italy and Germany. Filtration products accounted for 64% of fiscal 1995 revenues; health products, 34% and other, 2%.