RE: HEPA filter Contribution from Mike Edgington written on 4/14/2004 at 12:40
Original contribution: HEPA filter written by Eng. Nabil Hoseh on 4/6/2004 at 10:33) The answer is no a pressure drop can indicate that the HEPA is becoming clogged but it does not say anything about its capacity to retain particles and a DOP test is required at least once per year as a minimum. Answers to this contribution:
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