The CELLGARD ES Model NU-475 Laminar Flow Biological Safety Cabinets (LFBSC) are bench/table top models, optionally available with a base support stand, for operation as a console model. The CELLGARD ES models utilizes an Energy Saver DC ECM motor optimally determined forward curved fan for each model size/width to maximize both energy efficiency and filter loading capacity. The Energy Saver ECM motor is controlled via a solid-state DC motor controller that provides automatic compensation (constant volume control) for both filter loading and line voltage variances.
The Laminar Flow Biological Safety Cabinet, (LFBSC) is a product resulting from the development of the "laminar flow" principle and the application of environmental controls as required in the field of biological research or chemical containment. The LFBSC, 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.
The NU-475 bench LFBSC are known as a Class II, Type A2 Biological Safety Cabinet. Features
- Maintains inflow velocity of 100 LFPM (.51m/s) through the work access opening.
- Has HEPA filtered downflow air that is mixed with the inflow air from a common exhaust plenum.
- Exhaust airflow can either be room re-circulated or exhausted outside using a canopy exhaust transition.
- Has all biologically contaminated ducts and plenums under negative pressure or surrounded by negative pressure.
Cabinets used for work with minute quantities of volatile toxic chemicals and traces amounts of radionuclides required as an adjunct to microbiological studies must be exhausted through properly functioning exhaust canopies.