Posted 7/9/2026 06:44 (#11696123 - in reply to #11696098) Subject: RE: My shop air filter
Wisconsin
Often the filters are the same price no matter the size, four 20x25 with one 20x20 on the end, duct taped or siliconed together at the corners and attached to a fan works good.
edit: box fan is all that's needed, and put the filters on the exhaust, so the dust stays inside the filter box.
My shop air filter
