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Old 11-28-2008, 03:49 PM   #7
alyscat
Avalon Senior Member
 
Join Date: Sep 2008
Location: Washington state
Posts: 743
Default Re: Cheap Ventilation System for Underground Shelters

Sorry, Ammit, I saw stacked system and my eyes went right over the word scrubbers - probably because when I've seen air pipes for UGs, they've been stacked, but still open to the outside air, and my mind just created that image and went on. Minds are funny things!

alys
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