Appendix A Primary Containment: Biological Safety Cabinets Biosafety in Biomedical and Microbiological Laboratories
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BMBL Appendix A


Primary Containment: Biological Safety Cabinets

Figure 2b. Class II, Type B1 Biological Safety Cabinet
A. front opening    B. sash    C. exhaust HEPA filter
D. supply HEPA filter    E. negative pressure exhaust plenum    F. supply blower   
G. additional HEPA filter NOTE: The cabinet exhaust needs to be connected to the building exhaust system
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