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To:
steve86
Negative pressure?
And where does the withdrawn air go to?
12
posted on
07/28/2014 10:46:00 PM PDT
by
353FMG
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To:
353FMG
HEPA filtered and them pumped out.
18
posted on
07/28/2014 11:36:21 PM PDT
by
steve86
( Acerbic by nature, not nurture)
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