Gentek 3940301, 3940200, 3950320, 3950202, 3940421, 3940320, 3940402 Hepa Filter Leak Test, Purpose

Chapter 6: Maintaining Your Filtered Enclosure

9.Carefully fold and roll the new bag in four-inch pleats and push the bag into the access port. Reinstall the retaining strap and bungee cords. Turn the enclosure ON to draw a vacuum on the bag. Reinstall the front panel.

Figure 6-1

Bag-In-Bag-Out HEPA Filter Changing Procedure Diagram &

Filter Leak Test Diagram

HEPA Filter Leak Test

Purpose

After installing the new HEPA filter, the HEPA filter should be leak checked. This test is performed to determine the integrity of the HEPA filter, the filter housing, and the filter mounting frames. Leak testing is to be done by a qualified technician with calibrated equipment. Remove the top perforated exhaust cover by using a Phillips screwdriver to unfasten the (2) screws used to secure (2) clips. See Figure 6-1. The filter passes the leak test at .01% or better. Reference Leak Testing and Photometer scanning from the Institute of Environmental Services (IES-RP-CC001.3)

HEPA

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