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This image shows an exhausted enclosure in a screen conveyor area. This image shows an exhausted enclosure in a screen conveyor area. The access door is left open to facilitate looking into the enclosure. The ability of the enclosure to capture dust is severely compromised by leaving the access door open.

Access doors should be closed except when in use. If inspections, etc. require the frequent opening of the door, the enclosure should be redesigned.
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