Safe And Effective Filtration In ContainmentSource: Custom Powder Systems
By Russ Krainiak And Ronnie Harris
In containment, it is essential that airflow must match the filter rated flow used in the system. The American Glovebox Society and several other industry guides set these standards. Typically The ideal filter for airflow of 100 feet per minute would be: used to protect an operator during a glovebox breech or used for downflow booth ceiling to floor airflow velocity. It is a number based on removal of a particle with a known predictable capture velocity.
Filtration is an essential component of safe and efficient containment. HEPA filters are designed for a rated airflow volume given in CFM. The manufacturer designs and tests these filters at a rated flow per the IES standards and others, used to build and test them. If you exceed the rated CFM of the filter, you lose the efficiency of the filter, which can result in by--‐pass of containments.