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Terra Universal's Horizontal Laminar Flow (HLF) Cleanroom is designed for processes better performed in HLF environments, or as an alternative for height-restricted facilities; fan/filter units require an additional two feet for the 13-inch units and sufficient air flow space. The HEPA or ULPA fan/filter is installed in the wall opposite the room's entrance for ideal airflow, while an overhead ceiling grid supports the fluorescent or LED light modules.

Within an HLF controlled environment, be it a cleanroom or a hood, some applications need to be closer to the source of filtered laminar air and upstream from personnel. Horizontal laminar air, compared to vertical, reduces turbulence when striking work surfaces. FFUs placed in walls also simplify the task of changing or cleaning filters.

Door closure choices the HLF Cleanroom range from soft, 40-mil vinyl strip shields to an aluminum-framed swing door made of transparent acrylic or static-dissipative PVC. The cleanroom's frame is powder-coated steel, supporting wall panels made of acrylic, polycarbonate, SDPVC, tempered glass or white (opaque) polypropylene.

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