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Things to remember when placing Biological Safety Cabinets

Here are some Do’s and Don’ts when determining where a Biological Safety Cabinet should be placed in a room. More specific details can be found in Appendix 1 of the National Institutes of Health Design Requirements Manual (DRM) that was added in May 2010.   

Biological Safety Cabinet (BSC) performance can be affected by any airflow patterns in the room especially at the face of the cabinet. To ensure this does not happen, please follow the guidelines listed below:
 
Air supply diffusers or exhaust vents should not be placed directly over or in front of BSCs.
 
BSCs should be located out of the laboratory personnel traffic pattern. Preferably they are placed at the end of an isle.
 
BSCs should not be placed near an entryway. If this cannot be avoided they should be placed at least 60” from behind the doorway or 40” from an adjacent door. 
 
 
Zones need to be established around BSCs:
 
Work Zone minimum dimensions include 40” in the front of the cabinet and 12” on each side.
 
Clear Zones around the cabinet should include a minimum of 80” from opposing walls, 60” from opposing bench areas or occasional traffic areas and 40” between the BSC and bench tops along a perpendicular wall.
 
In rooms with multiple BSCs, the BSCs should ideally be staggered. If this cannot be achieved, a minimum of 120” should be between two cabinets facing each other.   
 
If two BSCs are placed next to each other there should be a minimum of 40” between them.
 
BSCs along perpendicular walls shall be placed 48” apart. 
 
 
Reference:
 
Memarzadeh, Farhad.May,2010). Biosafety Cabinet Placement Requirements for New Building and Renovations. NIH Office of Research Facilities. Retrieved June 18, 2012 from http://orf.od.nih.gov/PoliciesAndGuidelines/BiomedicalandAnimalResearchFacilitiesDesignPoliciesandGuidelines/DRMHTMLver/ListofAppendences/Appendix+I.htm
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