BioSafe MK II Series BioSafe Class II Walk-in Bio-Containment Enclosures



  • superior design & styling
  • negative pressure double-wall housings for
  • all stainless steel work zone construction
  • walk-in & reach-in with total access to the spacious interior work zone through the front access doors
  • smooth & effortless pneumatically-controlled tempered glass windows, close completely
  • microprocessor-controlled diagnostic system with digital display & audible alarm
  • hourmeter
  • delayed-automatic-off timer
  • elapsed / event timer
  • ISO Class 5 (Class 100)air cleanliness work zone for absolute product protection
  • Class 100 air cleanliness work zone for absolute product protection
  • ZERO-LEAK airflow system for enhanced safety
  • reliability-proven design & performance
  • ultra-quiet, low vibration operation
  • low maintenance & operating costs


Gelman BioSafe MK II Series Class II Walk-In Laminar Flow Bio-Containment Enclosures are designed with an extended work zone interior to accommodate a wide variety of research and industrial applications where bio-containment is required.
The bio-containment enclosures provide a high degree of personnel, product and environment protection for work with low to moderate risk biological agents that require Biosafety Level 1, 2 or 3 containment.
When ventilated to the outside atmosphere via a facility exhaust system after HEPA filtration, the enclosures are suitable for work with biological agents treated with minute quantities of volatile toxic chemicals and trace amounts of radionuclides that will not interfere with the work if recirculated in the downflow air.
The bio-containment enclosures are ideal for applications involving high-throughput robotic and automated systems, ultra-centrifuges, high-speed cell sorters, flow cytometers, aerosol generators, process equipment or instrumentation, liquid handling systems, electrospinning systems and other large laboratory instruments.

The BioSafe MK II Series Class II Walk-In Bio-Containment Enclosures maintain a minimum average inflow velocity of 100 fpm through the 8″ work access openings on the dual access doors.
An effective air barrier between the operator and the work zone, maintained by an inflow of room air into the full-width front grilles in the dual access doors provide personnel and environment protection.
The barrier air blends with the contaminated work area air behind the work zone and is partially recirculated back to the work area through supply HEPA filters on top of the work zone.
The recirculated air is HEPA-filtered to create a biological-clean work environment for product protection.
The remaining contaminated work area air is exhausted to the laboratory or outside atmosphere after HEPA filtration.
The BioSafe MK II Series Class II Walk-In Bio-Containment Enclosures have all biologically contaminated ducts and plenums under negative pressure.
The GELMAN ZERO-LEAK airflow system ensures that all positive pressure zones are surrounded by negative pressure zones to contain potentially-hazardous aerosols.


Microprocessor-controlled diagnostic system with digital display & audible alarm




Gelman BioSafe MK I Series Class II Walk-In Bio-Containment Enclosures are manufactured under a rigorous Total Quality Management in full compliance with ISO 9001:2015 and conform with the performance requirement of EN 12469.