| The class III microbiological safety cabinet (often
wrongly referred to as glove boxes) is a highly specialized product
designed for the most hazardous work, typically carried out in a containment
level 3 or 4 facility.
Like the class II safety cabinet this class of cabinet provides protection for both the user and
product although both to a higher degree.
Class III cabinet protection to the user is provided by means of barrier protection with
the user working through gloves or gauntlets and protection to the material
within the cabinet by means of the air being hepa filtered.
The inside of the cabinet operates at a negative pressure to the
surrounding environment with the exhaust air being vented through a hepa
filter to atmosphere.

An 'en12469 compliant' class III stainless steel constructed msc provides
assured containment when the highest levels of protection are required |