Class II Biological Safety Cabinet

Class II biological safety cabinets fall into four types (A1, A2, B1, B2), all of which protect the specimen, the user, and the environment from contamination. This is especially crucial for applications that require aseptic or particulate free conditions such as tissue culture experiments, and in toxicology work involving fumes and gases. All types of Class II biological safety cabinet have HEPA (high-efficiency particulate air) filters at their air supply and exhaust points.

For Type A1 and A2 Class II biological safety cabinets (A2 has a higher air velocity for greater protection), 70% of the airflow is recirculated within the cabinet while 30% of the air is exhausted (usually through the top). These cabinets do not protect against vapors and gases and, therefore, are best used for applications requiring sterile conditions without the need to work with volatile chemicals. However, when a Type A2 Class II biological safety cabinet is connected to a building’s exhaust system (through an optional canopy), trace amounts of volatile chemicals and radionuclides may be used.

For Type B1 and B2 Class II biological safety cabinets, more air is exhausted out of the cabinet (70% for B1, 100% for B2). These cabinets are best used for applications that require larger quantities of volatile chemicals and/or radionuclides (although limit restrictions may still apply). Type B Class II biological safety cabinets must be connected to the building’s exhaust system to protect the user from vapors and gases.
CompanyNuAireNuAireNuAireNuAireNuAire
ItemLabGard ES AIR NU-543 Class II, Type A2 Biosafety CabinetLabGard ES (Energy Saver) CYTO Class II, Type A2 Biosafety CabinetLabGard® ES NU-427 Class II, Type B1 Biosafety CabinetLabGard® ES NU-677 Class II, Type A2 Animal Handling Biosafety CabinetLabGard® ES TE NU-565 Class II, Type B2 Biosafety Fume Hood
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Catalog NumberNU-543NU-581NU-427NU-677NU-565
Price
Class/TypeClass II, Type A2Class II, Type A2Class II, Type B1Class II, Type A2Class II, Type B2
Air Inflow Rate105 fpm (0.53 m/s)105 fpm (0.53 m/s)105 fpm (0.53 m/s)105 fpm (0.53 m/s)105 fpm (0.53 m/s)
Size(s)3, 4, 5, 6-foot (0.9, 1.2, 1.5, 1.8-meter)4, 5, 6-foot (1.2, 1.5, 1.8-meter)4, 6-foot (1.2, 1.8-meter)4, 5, 6-foot (1.2, 1.5, 1.8-meter)4, 6-foot (1.2, 1.8-meter)
Exterior Dimensionsvaries with modelvaries with modelvaries with modelvaries with modelvaries with model
Interior Dimensionsvaries with modelvaries with modelvaries with modelvaries with modelvaries with model
Recirculated/Exhausted Air70% / 30%Inquire30% / 70%InquireInquire
DescriptionLabGard® ES (Energy Saver) AIR model NU-543 is defined as a Class II, Type A2 Biosafety Cabinet (BSC) providing the very best in personnel, product, and environmental protection. LabGard AIR features a single ultrahigh efficiency motor with a precision-engineered forward curve fan to increase ... Read MoreThe LabGard ES (Energy Saver) CYTO Model NU-581 Laminar Flow Biosafety Cabinet (LFBSC) is a console model. The LabGard Model NU-581 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. ... Read MoreThe LabGard ES (Energy Saving) NU-427 Class II, Type B1 Laminar Flow Biological Safety Cabinet (BSC) is a bench/table top model, utilizing 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. ... Read MoreThe LabGard ES (Energy Saver) Model NU-677 Animal Handling Biosafety Cabinet (LFBSC) is a bench/table top model, with an integral castored support stand for operation as a console model. The LabGard model NU-677 utilizes an Energy Saver DC ECM motor optimally determined forward curved fan for each ... Read MoreThe LabGard ES (Energy Saver) 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. The LabGard model NU-565 utilizes an Energy Saver DC ECM motor optimally determined forward curved fan for... Read More
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