Biosafety Cabinet Class II type B2

BMB-II-“Laminar-S”-1,2 (231.120)



Air flow scheme - Microbiological Safety Cabinet Class 2 (Biological Safety Cabinet Class 2)

  Cabinet's operating principle
in 3D

Class II Type B2 Biosafety Cabinet ensures environment, product, and personal protection during lab procedures where the circulation of filtered air is restricted due to the existence of possible chemical fumes that are released during the process. Since the filter does not catch these chemical fumes, it can be of potential danger to the operator if they are re-circulated in the workspace. Therefore, Class II Type B2 Biosafety Cabinets are ducted to a blower that is located on the outside of the cabinet, for total exhaust.

Application of the Class II Type B2 Biosafety Cabinet

Designed to work with pathogens of risk group 1, 2, and 3, these BSC’s provide optimal protection for the operator, product, and environment. Meeting the safety requirements of working with toxic materials, these cabinets ensure that all the inflow and down flow air is exhausted after being filtered by the HEPA/ULPA, without being recirculated over the workspace.

Minimizing the risk of cross and external contamination, the Class II Microbiological Safety Cabinet protects the operator and the environment from the potential airborne diseases that can result from working with highly risky microorganisms.

If the Class 2 Type B2 Cabinetis connected to the individual active exhaust system, then it can be used for procedures involving the use of toxic chemicals and radionuclides in very low quantities. It is specially designed to gear up the work in medical, pharmaceutical, and other related institutes which use pathogenic organisms for lab procedures.

Ergonomic design of the Type B2 Cabinets

Having an ergonomic design, the cabinet reduces user fatigue and workplace injuries. The adjustable base of the cabinet gives you leg and forearm space to ensure the maximum comfort while working. The cool white lighting inside the cabinet reduces the glare that can lead to disruption while the work is in progress.

For the protection of the operator from cross contamination, the Type B2 Cabinets are designed with a laminar airflow. The use of an ultra-high efficiency motor decreases the energy costs and increases the length of the life of the filter.

Being  ducted to the outside, these cabinets draw the room air into the work chamber of the cabinet through the HEPA filter. All the contaminated air flows past the HEPA filter, none of which is recirculated to ensure optimal safety of the environment and the operator from the specimen under study.

Features of a Class II Type B2 Cabinet

  • 100% filtered air removed from the room exhaust system for increased safety
  • No air recirculation in the BSC
  • Two filter fan units, independent of one another for air inflow and outflow
  • Contaminated air is directed to the external exhaust system for optimal purification
  • Being connected to an external exhaust system, the cabinet offers safety from toxic microorganisms
  • For easy movement of the cabinet, wheels are attached to it
  • For stationary fixation, screws are provided for additional support that may be required
  • Malfunctions, systems initiation, and work modes are indicated by the LCD control system
  • For easy and smooth sliding and storing of the UV unit, a DRIVE-N-ROLL technology has been installed
  • For the warning of the air flow imbalance, an audible-visible alarm system is installed to avoid any disruptions and unnecessary incidents

Using latest design features, Class II Type B2 Safety Cabinets provide 100% exhausting of the air outside the lab with the help of a HEPA filter. Ensuring maximum protection for the user and environment from the toxic chemicals emitted by the microorganisms being studied, the cabinets are ducted to the outside. Continuous airflow monitoring leads to the most effective personnel and product protection. Wise choices result in less hazards!



 ATTENTION! The cabinet must be connected to an individual active exhaust system with a flow rate of 1135-1205 m3/h. The room where the cabinet is installed must have a supply ventilation system with a flow rate of not less than 1000 m3/h.

Main  characteristics of  the  biological   safety   cabinet   classII  type  B2  BMB-II-“Laminar-S”-1,2 (231.120)

Air cleanliness class in the working chamber of the cabinet for suspended particles content according to ISO 14644-1-2002 

Class of the cabinet according  to EN 12469-2010, NSF/ANSI 49 II
Type of the cabinet according to NSF/ANSI 49 B2
Class of the installed in the cabinet НЕРА-filters according to EN 1822-1-2010 Н14
Class of the installed preliminary filter according to EN 779-2014 G4
Average downflow velocity in the work chamber, m/s 0,35+0,01
Average velocity of the air inflow though the work opening, m/s, not less than 0,47±0,03
Illuminance level in the work zone, lux, not less than 1000
Air recirculation rate in the cabinet, % missing

Main parameters and dimensions of the biological safety cabinet class II type B2 BMB-II-“Laminar-S”-1,2 (231.120)  

Dimensions of the assembled cabinet, mm (WхDхH) 1200х810х2325
Dimensions of the cabinet’s work chamber, mm (WхDхH) 1105x610x705
Mass of assembled cabinet with the stand, kg, not more than 270
Input power of the cabinet (exclusively of the load on the built-in outlets), W, not more than 720
Maximum load allowed on the sockets, W 1000
Air volume supplied to the work chamber of the cabinet, m3/h 795-820
Air volume exhausted from the cabinet, m3/h 1135-1205

Additional Options to biological safety cabinet class II type B2

  • Multi-purpose taps
  • Extra outleta
  • LED lighting of the working chamber

Dimensional drawing of the BMB-II-“Laminar-S”-1,2 (231.120)

Dimensional drawing of the  Microbiological Safety Cabinet Class 2 (Biological Safety Cabinet Class 2) - of the BMB-II-“Laminar-S”-1,2 (231.120)