Laboratory Bio Safety CabinetsOffering you a complete choice of products which include bio safety cabinets.
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Bio Safety Cabinets Pathology
|Cabinet Material||Stainless Steel|
|Noise Level||Less than 65 db|
|Working area size||Approx 1200 x 600 x 600 mm|
|Average Air Flow||90+-20 fpm|
are designed for protection of operator, product and environment from pathogenic agents and microorganisms transmitted in respiratory way and also for creation of a bacterial dust free air environment. It has a common plenum from which 30% of air is exhausted, and 70% re-circulated to the work area as the down flow. Type A cabinets exhaust air directly back to the laboratory, and they may contain positive pressure contaminated plenums. When toxic chemicals must be employed as an adjunct to microbiological processes, these cabinets should not be used. Exhaust HEPA filtration onlyremoves airborne aerosols including biohazards, and not chemical fumes.PSI Class II Type B1 Biological Safety Cabinets:
- The Class II Type B1 biological safety cabinet has a common plenum from which 70% of air is exhausted, and 30% re-circulated to the work area as the down flow.
- Type B1 cabinets also have a dedicated exhaust feature that eliminates re-circulation when work is performed towards the back within the interior of the cabinet. Toxic chemicals employed as an adjunct to microbiological processes should only be employed if they do not interfere with work when re-circulated in the down flow.
|Type||Face Velocity (FPM)||Airflow Pattern||Radio nuclides / Toxic Chemicals|
|Class II Type A||75||0% re-circulated through HEPA: 30% exhaust through HEPA||No|
|Class II Type BI||100||30% re-circulated through HEPA: 70% exhaust via HEPA and hard ducted||Yes (Low levels) Volatility|
|Class II TypeB2||100||No re-circulation: 100% exhaust via HEPA and hard ducted||Yes|
|Class II Type B3||100||Same as Class II Type A, but plenum under negative to room and exhaust air is ducted||Yes|