ventilation system pictures in foundry?

want to control terrible silica dust in foundry worksite
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...sigh...don't we all. You are?
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mattathayde had written this in response to
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------------------------------------- rill wrote:
you going to need some major ventilation, maybe a laminar flow type system like used in surgery that pushes air in over where the work is being down and pushes contaminated (in your case silica) down. just remember what ever ventilation you have to use, it takes 20 times the air movement to suck things away as it does to blow them away. in the end no matter what you do you will still need to wear a respirator
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