According to BS EN 12469:2000 and the Advisory Committee on Dangerous Pathogens (ACDP) MSCs should be fumigated:
- Before any work on the safety cabinet where access to potentially contaminated parts is necessary, including pre filter and main filter changes
- Before undertaking in situ HEPA filter leak integrity testing
- After a spillage where inaccessible surfaces may have become contaminated
- Before maintenance engineers are permitted to work on the equipment.
As all safety cabinets used for known or potential human pathogens must be rendered safe prior to service, Crowthorne offer a full fumigation service using either hydrogen peroxide or formaldehyde, depending on your requirements.
Since our acquisition of the Bioquell service airflow business, we now offer the Equipment Bio-Decontamination Service (EBDS), using Bioquell’s hydrogen peroxide fumigation (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.
As the safety cabinet is under negative pressure during the fumigation process the laboratory can remain in full use, enabling engineers to fumigate and service safety cabinets whilst allowing lab workers to continue their work as usual, drastically reducing any downtime and disruption.
We offer two fully validated EBDS fumigation services:
- Chamber decontamination to ensure the safety cabinet is safe to use prior to a routine service visit
- Full filter decontamination to ensure the safety cabinet is safe to use prior to changing or removing HEPA filters, and prior to relocating or decommissioning a safety cabinet.
More information on our EBDS fumigation service is available here.
Whilst hydrogen peroxide fumigation has been proven to be a safe and efficient method of fumigation, many users prefer to stick with the ‘tried and tested’ solution of formaldehyde decontamination for its highly reliable and effective results, its broad antimicrobial efficacy and its log reduction.
As formaldehyde requires a lengthy contact time, fumigation is generally run overnight. Your engineer will return to site the next morning to complete the fumigation process, make sure the safety cabinet is fully decontaminated and ready for use, ensuring minimal disruption and downtime of the safety cabinet.