On Wednesday, January 28, 2015 at 7:04:49 AM UTC-8, John Griessen wrote:
-- The industry standard way you see in ads is a filter,
then a plenum, (or manifold), then a panel with slots to release
the air. The panel is the full size of the back of the rectangular box of the flow hood. I'm sure some kind
of stretched fabric could do even better at laminar flow than a panel with slots.
That panel actually houses the HEPA filter, as far as I know. There typically is a filter at the air intake as well, but that's just a cheap filter pad to keep out the larger dust, not an actual HEPA filter.
Patrik
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