Laminar cabinets

Biosafety laminar flow cabinets 

NuAire biosafety laminar flow cabinets provide personnel, product, and/or environmental protection when looking to obtain optimum control over product quality while reducing the potential for exposure. Ergonomically designed NuAire bench top laminar cabinets will help you to improve accuracy of laboratory safety methods and processes. It is recommended to identify the biological safety level of each laboratory method, piece of equipment and engineering process. For easier control of infectious agents, four biological safety levels have been defined. 

The Class I biological safety cabinet provides personnel and environmental protection, but no product protection. It is similar in air movement to a chemical fume hood, but usually has a limited fixed work access opening and the exhaust air must be HEPA filtered, to protect the environment. The Class I biological safety cabinets are designed for general microbiological research with low and moderate-risk agents.  In addition, the work zone, which is typically much smaller than a chemical fume hood, is geared to working with biologicals, whose process dictates the use of moderate amounts of volatile liquids, that are not suitable for recirculating cabinets. 

Selecting a Class II biological safety cabinet requires considering multiple factors including, among others, the materials, quantity, and procedures being performed within the cabinet, the facility requirements based on risk assessments, the location of the cabinet within the laboratory itself, the installation requirements of the cabinet, and the mechanical systems exhaust/supply to both the laboratory and the cabinet. There are three types of NuAire Class II biological safety cabinets: A2, B1, B2.

A2 type
NuAire Class II, Type A2 biological safety cabinets offer personnel, product, and environmental protection to obtain optimum control over product quality while reducing the potential for exposure of both product and personnel to airborne biological or particulate chemical agents in research and drug preparation or product operations.
B1 type
NuAire Class II, Type B1 biological safety cabinets exhaust 70% of airflow. The B1 biosafety cabinet may be used for work treated with minute quantities of volatile toxic chemicals and trace amounts of radionuclides required as an adjunct to microbiological studies if work is done in the direct exhausted portion of the cabinet, or if the chemicals or radionuclides will not interfere with the work when recirculated in the downflow air.
B2 type
NuAire Class II, Type B2 biological safety cabinets feature downflow air drawn from within the laboratory or outside air. All downflow and inflow air is exhausted through a HEPA filter. All contaminated ducts and plenums are maintained at negative pressure. The Type B2 biological safety cabinet may be used for work with volatile toxic chemicals and radionuclides as required as adjuncts to microbiological studies.