Labtop Biosafety Cabinet Class II A2 LBS-32A2
Catalog No.: LBS-32A2
Quantity/Unit: 1 No./Box
Availability: In stock
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- Product Details
Biosafety Cabinet Class II A2 is supplied by Labtop. It has a motorised sash, a HEPA filter (0.3 micron) with typical efficiency of 99.99%, a vertical air flow of 100 ftmin air velocity, 100minute 20 Velocity and efficiency of 99.99%. Labtop Biosafety Cabinet Class II A2 has an internal size of 3(w) x 2(d) x 2(h) ft.
• Quantity provided: 1 No./box
A biosafety cabinet (BSC) or microbiological safety cabinet, is an enclosed, ventilated laboratory workspace for safely working with materials contaminated with (or potentially contaminated with) pathogens requiring a defined biosafety level. The primary purpose of a BSC is to serve as a means to protect the laboratory worker and the surrounding environment from pathogens. All exhaust air is HEPA-filtered as it exits the biosafety cabinet, removing harmful bacteria and viruses. Class II cabinets provide both kinds of protection (of the samples and of the environment) since makeup air is also HEPA-filtered. There are five types: Type A1 (formerly A), Type A2 (formerly A/B3), Type B1, Type B2 and Type C1. The Type A2 cabinet, formerly designated A/B3, has a minimum inflow velocity of 100 ft/min. A negative air pressure plenum surrounds all contaminated positive pressure plenums. The downflow air, considered contaminated, splits just above the work surface (the BSCs smoke split) and mixes with the inflow. This air is drawn, through ductwork, up the back of the cabinet where it is then blown into a positive pressure, contaminated plenum. Here, the air is either recirculated, through a HEPA filter, back down over the work zone, or exhausted out of the cabinet (also through a HEPA filter). Sizing of HEPA filters and an internal damper are used to balance these air volumes. This type is not safe for work with hazardous chemicals even when exhausted with a "thimble" or canopy to avoid disturbing internal air flow.