Cambridge Filter Corporation, U.S.A. — Enzyme, anti-microbial filter, virus fighting filter, inactivation of virus, corona type virus, HEPA filters, Medium efficiency filters, filters for medical facility, care facilities, hospital, food The Enzymic Microbial Inhibition Filter Series from Cambridge sterlizes bacteria in sensitive processes while providing medium (90%) or HEPA (99.97% & 99.99%) level filtration and is an excellent choice for Pharmaceutical, Healthcare, Biotech and Food Processing industries.