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Enclosed pass-throughs designed for contamination-free transfer of materials in and out of a clean room. These pass-throughs typically consist of a chemical resistant metallic, plastic (e.g., polypropylene, PVC), or stainless steel structure that may include a safety sprinkler, an air shower, and a high-efficiency particulate-air (HEPA) filter. During operation of the air shower, the clean-side door of the cabinet cannot be opened. The air is exhausted to the outer side (i.e., the dirty room), and the objects are introduced into the clean room. Clean-room enclosed pass-throughs are frequently wall mounted, but floor-mounted units are available to allow carts to be wheeled into the room.
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