All of the air from the cabinet is exhausted through

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All of the air from the cabinet is exhausted through a HEPA filter either into the laboratory or to the outside. The Class I BSC is designed for general microbiological research with low- and moderate-risk agents.
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Class II Type A-I Biosafety Cabinets A. front opening B. sash C. exhaust HEPA filter D. rear plenum E. supply HEPA filter F. Blower It is designed with inward air flow to protect personnel, Product & Environment HEPA-filtered downward Vertical laminar airflow for product protection, HEPA- filtered exhaust air for environmental protection
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70% re circulated through HEPA Filter 30% Exhausted Through HEPA Filter Cannot be used for Radio Nucleotides and Toxic Chemicals Biosafety Levels 2 & 3 User, Product, & Environment Protection
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Class II Type A-II Biosafety Cabinets A. front opening B. sash C. exhaust HEPA filter D. supply HEPA filter E. positive pressure plenum F. negative pressure plenum Note: The cabinet exhaust needs to be connected to the building exhaust system.
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70% re circulated through HEPA 30% Exhausted Through HEPA Filter Can be used for Radio Nucleotides and Toxic Chemicals Biosafety Levels 2 & 3 User, Product, & Environment Protection Under Negative Pressure to room Exhaust Air is Hard Ducted
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Class II Type B-I Biosafety Cabinets A. front opening B. Sash C. exhaust HEPA filter D. supply plenum E. supply HEPA filter F. Blower G. negative pressure exhaust plenum Note: The cabinet exhaust needs to be connected to the building exhaust system.
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30% re circulated through HEPA Filter 70% Exhausted Through HEPA Filter Can be used for Radio Nucleotides and Toxic Chemicals (Low Levels / Volatility) Biosafety Levels 2 & 3 User, Product, & Environment Protection
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Class II Type B-II Biosafety Cabinets A. front opening B. Sash C. exhaust HEPA filter D. supply HEPA filter E. negative pressure exhaust plenum F. supply blower G. filter screen Note: The carbon filter in the building exhaust is not shown. The cabinet exhaust needs to be connected to the building exhaust system
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Class II Type B-II Biosafety Cabinets No Re-circulation100% Exhausted Through HEPA Filter Can be used for Radio Nucleotides and Toxic Chemicals Biosafety Levels 2 & 3 User, Product, & Environment Protection Exhaust HEPA Filtered Exhaust Hard Ducted out.
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Class III Biosafety Cabinets A. glove ports with O-ring for attaching arm-length gloves to cabinet B. Sash C. exhaust HEPA filter D. supply HEPA filter E. double-ended autoclave or pass- through box Note: A chemical dunk tank may be installed which would be located beneath the work surface of the BSC with access from above. The cabinet exhaust needs to be connected to the building exhaust system.
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This is a totally enclosed, ventilated cabinet Gas-tight construction Offers the highest degree of personnel and environmental protection from infectious aerosols as well as protection of research materials from microbiological contaminants.
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Cytotoxic Drug Safety Cabinets Dedicated exhaust flow blower
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