Laminar Air Flow/ HEPA filter Alarming
Laminar Air Flow/ HEPA filter Alarming
(OP)
A query re. Laminar air flow hoods/ Ceiling mounted HEPA banks.
I am considering alarming low air flow using Dwyer Photohelics which will pick up on DP across HEPA’s.
However, if there is minor damage to filter (imagine a pin hole) the DP (related to airflow) will possibly remain within limits but the filter will probably fail on next DOP test.
How do I best protect myself against low airflow & filter damage in a sterile manufacturing area in a pharma plant?
Thanks,
Brendan
I am considering alarming low air flow using Dwyer Photohelics which will pick up on DP across HEPA’s.
However, if there is minor damage to filter (imagine a pin hole) the DP (related to airflow) will possibly remain within limits but the filter will probably fail on next DOP test.
How do I best protect myself against low airflow & filter damage in a sterile manufacturing area in a pharma plant?
Thanks,
Brendan





RE: Laminar Air Flow/ HEPA filter Alarming
Try these guys for starters:
http://www.metone.com/particulate.htm
CB
RE: Laminar Air Flow/ HEPA filter Alarming
As for filter damage, after DOP testing, carefully use a perf. plate or some sort of grill to cover the face. There shouldn't be any reason that the filter will be damaged after you have properly installed it into the ceiling. (and scheduled checks)
RE: Laminar Air Flow/ HEPA filter Alarming
Just believe in periodical DOP and periodical (or continuous) particulate measurement. Retrospective data will save you from the regulators.
Good luck,