I use a Sharpe Filter for painting and "clean" air. For air tools, I use a cheap "Home Depot" type filter. I have found that water is generally the big issue not particulates for painting. That is why you really need to cool it down before any moisture traps or filters. Having your filter that close to the compressor is not ideal as the air is going to be hot. The big tank lets you cheat because it slows the air down and allows it to cool, so you probably don't require as much cooling line as I do.