The LabGard® ES (Energy Saver) TE (Total Exhaust) model NU-565 Laminar Flow Biosafety Fume Hood/Cabinet is a bench/table top model, optionally available with a base support stand, for operation as a console model. Model NU-565 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 to airflow setpoints via a solid-state DC motor controller with digital dual thermistor airflow sensors that provide an automatic compensation (constant volume control) for both filter loading and line voltage variances. 

The Laminar Flow Biosafety Fume Hood/Cabinet 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 Biosafety Fume Hood/Cabinet, when used with proper technique, is an effective laboratory aid in obtaining the optimum control over product quality. Model NU-565 also reduces 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-565 Bench meets the requirements of a Class II, Type B2 since the cabinet conforms to the following requirements: 

• Maintain a minimum average inflow velocity of 100 fpm (0.51m/s) through the work access opening; * Have HEPA filtered downflow air drawn from the laboratory or the outside air (i.e., downflow air is not re-circulated from the cabinet exhaust air; * Exhaust all inflow and downflow air to the atmosphere through a hard connection to the facility exhaust system after filtration through a HEPA filter without recirculation in the cabinet or return to the laboratory; * Have all contaminated ducts and plenums under negative pressure or surrounded by directly exhausted (non-re-circulated through the work area) negative pressure ducts and plenums. 

  Type B2 Biosafety Fume Hood/Cabinet classified to UL 1805 may be used for work with flammable or volatile chemicals and radionuclides required if permitted by chemical risk assessment.