[c-nsp] Enclosed rack with filtered air

[jp]

A minor reconfiguration to positive pressure would prevent dust from 
getting sucked in. Put the filter on the bottom, then the fan drawing 
air through the filter, then it will create a small pressure inside the 
cabient, keeping dust out, except that which might leak through or 
around the filter element.

On Sat, Oct 03, 2009 at 10:37:28AM -0500, scott owens wrote:
> Hello,
>    I need to put two 6509s in a non-clean warehouse.  I thought I could just
> put them in a standard rack with some AC filters attached to the bottom and
> let the air get pulled out of the top.  However the rack is not airtight
> enough and I am getting a lot of drywall/dust in the rack and switches.
> 
> Anyone here know where / how to find a semi-sealed enclosed rack with
> filtered forced air  ?
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