Frequently used in laboratory environments, microbiological safety cabinets (MSC) are HEPA filtered enclosures which provide protection of (in various combinations): the operator, the product itself and the surrounding environment during the routine handling of biological agents or materials.

It is imperative that microbiological safety cabinets are annually tested and validated to ensure that they are safe to use and compliant with BS EN 12469:2000.

Whether you have a Class I, Class II or Class III cabinet, Crowthorne Group can provide servicing and performance testing using externally calibrated equipment.

Our engineers can carry out various performance and safety tests as part of a routine service contract or ad-hoc service visit. Including:

  • Undertake in situ HEPA filter leak integrity test
  • Perform operator/product protection test using KI-Discus
  • Undertake airborne particle counting
  • Inspect pre-filter (and replace if required)
  • Check operation of all switches, outlets, air flow indicators, pressure gauges, warning systems and speed control
  • Measure airflow velocities
  • Measure light and noise levels.

In addition to microbiological safety cabinets, our engineers can service and maintain: laminar flow cabinets, PCR workstations, isolators, fume cupboards, recirculating fume cabinets and LEV systems.

Class I

  • Operator & environmental protection
  • No product protection
  • HEPA Filters
  • Can be ducted

Class II

  • Operator, environmental & product protection
  • HEPA Filters
  • Ducted or recirculating

Class III (III/I)

  • Operator, environmental & product protection
  • Physical barrier between operator and sample
  • HEPA filtered supply & extract
  • Ducted

Frequency of Service

We recommend all safety cabinets are serviced every 12 months as a minimum to ensure they are performing as they were designed to. However, when a microbiological safety cabinet is in a containment Level 3 or 4 (CL3/CL4) laboratory and therefore working with HG3 or HG4 biological agents, the Advisory Committee on Dangerous Pathogens (ACDP) advises to test the performance of the MSC at six monthly intervals.

Routine Fumigation

According to BS EN 12469:2000 and the ACDP, microbiological safety cabinets should be fumigated in the following circumstances:

  • Before any maintenance work on the safety cabinet where access to potentially contaminated parts is necessary
  • Before undertaking in situ HEPA filter leak integrity testing
  • After a spillage where inaccessible surfaces may have become contaminated.

Since our acquisition of the Bioquell service airflow business, we now offer the Equipment Bio-Decontamination Service (EBDS), which uses Bioquell’s HPV process to effectively achieve a full 6-log spore reduction. EBDS is designed to fumigate microbiological safety cabinets, incubators, robotic enclosures and similar laboratory equipment.

Where there are a number of safety cabinet to service, we perform an overlapping fumigation and service schedule to drastically reduce downtime within the laboratory.

Emergency Fumigation

Emergency fumigation can also be arranged under a suitable contract or ad-hoc dependant on the requirements of your facility.

Repairs and Replacement Parts

Crowthorne work closely with all microbiological safety cabinet manufacturers  so we can easily source any replacement parts to have your cabinet working safely as soon as possible.

To book your Microbiological Safety Cabinet service get in touch!

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