The CellGard ES Model NU-475 Class II, Type A2 Laminar Flow Biological Safety Cabinet (LFBSC) provides Personnel, Product, and Environmental Protection. The NU-475 when used with proper technique, is an effective laboratory aid in obtaining the optimum control over product quality while reducing the potential for exposure of both product and personnel to airborne biological or particulate chemical agents in low to moderate risk-hazard research and drug preparation or product operations, as prescribed by the Center for Disease Control (CDC) Atlanta, Georgia.