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Cabinet Type:

Inflow Velocity:

Recirculated Air:

%

Exhausted Air:

%

Help with Biological Safety Cabinets specifications:

Cabinet Type
   Cabinet Type:       
   Your choices are...         
   Class I       The Class I BSC provides personnel and environmental protection but no product protection.  It is similar in air movement to a chemical fume hood, but has a HEPA (high efficiency particulate air) filter in the exhaust system to protect the environment. 
   Class II Type A       Class II biological safety cabinets provide personnel, environmental and product protection.  The Class II, Type A cabinet recirculates approximately 70% of the air through a supply filter, and exhausts approximately 30% of the air through an exhaust filter to the room. 
   Class II Type B1       The Class II (Types A, B1, B2 and B3) biological safety cabinets provide personnel, environmental and product protection.  By definition the Class II Type B1cabinet meets the requirements of the National Cancer Institute (NCI) specification for a General Purpose Clean Air Biological Safety Cabinet. 
   Class II Type B2       The Class II (Types A, B1, B2 and B3) biological safety cabinets provide personnel, environmental and product protection.  Class II Type B2 cabinets are total exhaust cabinets, widely used in toxicology laboratories and similar applications where chemical effluent is present and clean air is essential. 
   Class II Type B3       The Class II (Types A, B1, B2 and B3) biological safety cabinets provide personnel, environmental and product protection.  Class II Type B3 cabinet recirculates approximately 70% of the air through a supply filter, and exhausts approximately 30% of the air through and exhaust filter.  The exhaust is directed to the outside through a facility exhaust system. 
   Class III       The Class III biological safety cabinet was designed for work with biosafety level 4 microbiological agents, and provides maximum protection to the environment and the worker.  It is a gas tight enclosure with a non-opening view window.  Access for passage of materials into the cabinet is through a dunk tank or double-door pass-through box that can be decontaminated between uses. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Performance Specifications
   Inflow Velocity:       Inflow velocity is the downward velocity of air across the open front of the cabinet. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Recirculated Air:       The percent of air that is filtered and then brought back into the workplace. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Exhausted Air:       The percent of air that is exhausted outside of the workplace. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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