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    Venting a 600w HPS indoors?

    Inline fan with plenty of static pressure (0.5" to 1.0" at desired airflow) + ductwork will take your air (almost) anywhere. http://www.hvacquick.com/products/residential/Fans/Inline-Fans It's not a bad idea to filter air whenever you plan to breath it :-) Inline filter boxes...
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    Ventilation question. +REP

    Here is a good rule of thumb: 1 square foot of intake for every 500 CFM of exhaust.
  3. H

    Need some fan advice (duct, inline, cheap, expensive) something quiet

    This is a late reply, but here's a bunch of technical information that will help you make the right decision. 1. All fans make noise. The trick is how to trap, divert, insulate from, or otherwise attenuate the noise. 2. In-line fans can be really useful, because flexible, insulated duct (also...
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