Biohazard Safety Cabinet Class – II
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Description
BIO-HAZARD SAFETY CABINET-II
Cleanair™ 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 downflow.
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 downflow.
Cleanair™ Class II Type B2 Biological Safety Cabinets
In the case of Cleanair™ Class II Type B2 cabinet all inflow and downflow air is exhausted after HEPA filtration to the external environment without recirculation within the cabinet. This means that Type B2 cabinets are apt for working with toxic chemicals employed as an adjunct to microbiological processes under all conditions since no re-circulation occurs. In theory, Type B2 cabinets may be measured to be the safest of all Class II biological safety cabinets since the total exhaust feature acts as a fail-safe in the event that the downflow and / or exhaust HEPA filtration systems cease to function normally. However, Class II Type B2 cabinets, in practice, are difficult to install, balance and maintain
| Model No | Working Area Size In Feet | Overall Equipment Size in MM | Top Cabinet Size in MM | Support Stand Size in MM |
| (W x D x H) | (W x D x H) | (W x D x H) | (W x D x H) | |
| CBS 0900 | 3' x 2' x 2' | 1000 x 800 x 2000 | 1000 x 800 x 1400 | 1000 x 800 x 600 |
| CBS 1200 | 4' x 2' x 2' | 1300 x 800 x 2000 | 1300 x 800 x 1400 | 980 x 850 x 760 |
| CBS 1800 | 6' x 2' x 2' | 1900 x 800 x 2000 | 1280 x 850 x 1000 | 1280 x 850 x 760 |
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