Uploaded September 2017 | Updated September 2026, 2 weeks ago

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This is how I made an extractor fan for spray painting small items in the workshop. Its made from standard bathroom exhaust fans and an old A/C return air box.
Unfortunately, I think my comment about using a flyscreen for the filter medium didn't come across as I intended. Just to clarify I was explaining how a flyscreen frame could be used to fit the filter cloth to.

Cheers.