Bio-safety Cabinets


The Class 2 A2, A3 & B2 cabinets have a perfectly balanced exhaust and supply H.E.P.A. filter with exactly proportioned surface areas relative to their respective required volumes of air.

This makes the loading of both these filters equal. The final result is that no protection factor will be compromised by excessive loading to the exhaust filter or supply filter.

(No additional balancing dampers are installed to balance the airflow which minimizes the chance of any malfunction)

The cabinet is designed with all positive areas surrounded by negative pressure zones, any possible unfiltered pathogen would be returned back to the H.E.P.A. Filters.

The fan in the cabinet is capable of providing 530 Pa (pressure). Initial resistance on H.E.P.A. filter and system is only 60Pa meaning the lifespan of the H.E.P.A. filters would utilize 3 times the initial resistance. This combination guarantees safety performance even when service intervals have been increased or the cabinet is not operating in perfectly sterile laboratory conditions.

The cabinet incorporates less unreliable electronic components which can result in malfunction as a result of irregular power supply. The alarm system in the cabinet is pressure based which is trouble free. Far more suitable for most applications. Pressure monitoring is done with an easily viewable minihelic pressure gauge built into the work area.

This provides the operator an accurate indication of the filter condition. An extra which is not offered by most opposition cabinets.


Outer section:

  • The cabinets are manufactured from mild steel epoxy powder coated white
  • The sides is 75mm wide that house all services with removable side panels for access to the services
  • There is fluorescent illumination from top behind frosted toughened safety glass
  • The units are equipped with a 15 AMP plug socket on either side of the service panel as well as a minihelic pressure gauge and a variable speed control.
  • Stand epoxy powder coated to suit with adjustable feet (Optional)


Inner Section:

  • 304 stainless steel scratch finish work surface, back and sides
  • Stainless steel spill tray and back panel
  • Exhaust outlet with optional anti-blow back and can be ducted to outside for added safety (Optional)
  • A spindle type gas tap and a germicidal UV light are optional extra’s

Accessories (Optional):

  • Support Stand
  • UV Germicidal light
  • Arm Rest
  • Anti-Blowback damper and thimble for units ducted to outside (Oncology)
  • LPG Gas tap or other


For Oncology use an anti-blowback, thimble connection and booster fan is recommended.



  • Model 2120 – 1330W x 820D x 1560H = Power 630Watt 230VAC – 245Kg
  • Model 2180 – 1860W x 820D x 1560H = Power 630Watt  230VAC –  350Kg

Eric James
Cell: +27 082 464 2896
Landline: +27 031 573 2475
Fax: 086 541 0699

8 Blackwood Place,
Virginia, Durban North,