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  1. bocearnaigh

    Laminar Air Flow/ HEPA filter Alarming

    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...
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