Energy & networksLaboratory & cleanroomRefrigeration & climateSafety & protection
Biosafety: what really determines the containment level of a laboratory
Whether a laboratory needs level 2 or 3 is not decided by the label “biological”, but by a risk assessment of the organism and the activity. The classification determines the approval route, ventilation concept and construction costs – it belongs at the start of planning.
Read Safety & protection3 minRadionuclide laboratory type A, B or C: what drives the classification – and what it triggers in construction
The statement “We work with radioactivity, so we need a type A laboratory” is usually wrong: the type of working area follows from the activity in relation to the nuclide-specific licensing limit. And it determines fire protection, ventilation, plumbing and floor plan all at once.
Read Safety & protection3 minPressure cascades in containment: pascals, not cubic metres
A room is deemed critical – so it gets more exhaust air. This reflex is expensive and offers no protection: hazardous substances stay in the room because a stable pressure differential dictates the direction of flow, not because a lot of air is moved.
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