In the case of 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.
Biological Safety Cabinets, enclosed containers and other engineering controls are designed to remove hazardous biological materials. The biological safety cabinet is the principal device used to provide containment of infectious splashes or aerosols generated by many microbiological procedures.
The equipment is widely applicable and is used in biomedicine, microbiology and gene recombination. Our Biological Safety Cabinets have the following technical specification:
Laboratory Biosafety Manual.
Second Edition (revised). Interim guidelines. World Health Organization. p32.
Class | Inflow Velocity m/s |
Recirculation of Air (%) | Exhaust Air (%) |
Control Plenum surrounded By | Exhaust Alternatives | Biosafety Level |
Class I | US: 038 EN: 0.70 |
0 | 100 | Outside Air | Inside room / |
1, 2 & 3 |
Class II A1 |
US: 038 EN: 0.40 |
70 | 30 | Outside Air | Inside room / Hard duct |
1, 2 & 3 |
Class II A2 |
US: 050 EN: 0.40 |
70 | 30 | Negative Plenum | Inside room / Hard duct |
1, 2 & 3 |
Class II B1 |
US: 050 EN: 0.40 |
30 | 70 | Negative Plenum | Hard Duct Only | 1, 2 & 3 |
Class II B2 |
US: 050 EN:NA |
0 | 100 | Negative Plenum | Hard Duct Only | 1, 2 & 3 |
Class III | Closed:* >0.5”WC |
0 | 100 | Negative Plenum | Inside Room/Hard Duct | 1, 2, 3 & 4 |
We do undertake Servicing and repairing of class 100 Class II Type B2 Biological Safety Cabinets lutron Range of products throughout india
Apart from supplying lutron Electrical Testing products in India through dealers network, catering to a variety of customers ranging from Atomic energy, Electricity Boards, Electrical Laboratory, Shopping Complexes, Shopping Mall, Electrical Contractors, Engineering Industries, Turnkey Construction Companies, Railways, Defence Installations, Research Laboratories, Educational Institutes and various Research and Development laboratories of leading national and multinational companies.
We DFT TECH, are lutron Authorized Distributors, Importers, Stockists, Dealers and Suppliers of class 100 Class II Type B2 Biological Safety Cabinets Products in Chennai, Assam, Madurai, Coimbatore, Nagaland, Kerala, Manipur, Mizoram, Haryana, Sikkim, VIsakhapatnam, Tirchy, Hosur, Anjaw, Tumkur, Mysore, Kolkatta, Salem, Poonamalle and etc..