EPS Biological safety cabinets (BSC) are enclosed cabinets designed to protect the product, laboratory worker and the surrounding environment when working with contaminated materials and/or pathogens. Its primary purpose is biocontainment; hence all exhaust air is HEPA filtered. Bio-safety cabinets have several different types according to the required degree of bio-containment.
Types of Bio safety Cabinets:-
|CLASS||Recirculation of Air (%)||Exhaust Air (%)||Exhaust Alternatives||Inflow Velocity (Ft/m)|
|Class I||0||100||Inside Room/ Hard Duct||75ft/m|
|Class II-A1||70||30||Inside Room/ Hard Duct||75ft/m|
|Class II-A2||70||30||Inside Room/ Hard Duct||100ft/m|
|Class II-B1||30||70||Hard Duct only||100ft/m|
|Class II-B2||0||100||Hard Duct only||100ft/m|
|CLASS-III||0||100||Inside Room/ Hard Duct||Closed|
Biosafety Cabinet Class -I
The Class I biosafety cabinet provides personnel and environmental protection, but no product protection. It has similar turbulent air flow as a chemical fume hood, but has a HEPA filter in the exhaust system to provide containment and environmental protection. This older class of biosafety cabinet is rarely seen in biomedical and microbiological
Biosafety Cabinet Class -II
The Class II biosafety cabinet provides protection to the user, the experimental material and the environment. The Class II biological safety cabinet is the type most commonly used in biomedical and microbiological laboratories. Air flow is drawn from the room around the operator into the front grille of the cabinet, which provides personnel protection. In addition, the downward laminar flow of HEPA-filtered air provides protection for experimental material inside the cabinet. Because cabinet air has passed through the exhaust HEPA filter, it is contaminant-free, providing environmental protection, and may be recirculated back into the laboratory (Class II Type A) or ducted out of the building (Class II Type B).
Biosafety Cabinet Class –III
The Class III biological safety cabinet is most suitable for work with biohazardous agents requiring high contains (biosafety level 3 or 4). The Class III cabinet is completely enclosed; HEPA filter-ventilated cabinet fitted with glove ports and decontamination capabilities for entry and exit of material. It offers the highest degree of personnel and environmental protection from infectious aerosols.
|Model||Working Dimension in (Feet)||Overall Dimension in (mm)||BSC – CLASS Selection|
|EPS/BSC-900||3’ X2 ʹX2’||980x780x1960||SS||MS|
|EPS/BSC-1800||6’ x 2ʹX2ʹ||1880x780x1960||SS||MS|
|EPS/BSC-900-S||3’ X2 ʹX2’||980x780x1960||SS||SS|
|EPS/BSC-1800-S||6’ x 2ʹX2ʹ||1880x780x1960||SS||SS|