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Detached Member
Join Date: May 2003
Location: southern California
Posts: 26,964
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Off the top of my head, I don't think a bathroom fan will push very much air through HEPA filters. Any specs of the filters themselves? Most use a manometer to measure pressure drop to indicate when it is time to change the filter media. How "clean" do you want? What are you putting together, a Rolex watch or a carburator?
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Hugh
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