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Here are some basic tips regarding filter construction that i am trying to make more easy to access. This formula was found HERE and i am basing my instructions on a cylindrical filter. ( Fan CFM rating * 0,8267)+77,363=Total area of where air should pass carbon filter Say you have a...

Hi As my unstructured title says. I am gonna move into a miniature rental apartment where i am going to live and study. 215 sq feet total. In there i am going to set up a small grow operation for my 4 nortern light seeds. I am going to use a closet 2 x 2 feet in square and 6 feet high. As...