There are 2 filters on my compressor, but granted as it is not yet used much i have not looked inside them, but i assume there is filtration in both of them.
I do plan on replacing the filters come spring, no matter what the manual recommend.
The factory Regulator from Epic airguns do have a little sintered filter at the very bottom / start of the regulator, Huma do not have that on their regulator.
I have only experienced this since i changed to the Huma regulator / a while after i changed to the Huma regulator.
The Leshy 2 that the Epic two regulator lean heavily upon, that rifle do have a substantial sintered filter on it, before / after the regulator.
The assisted valve setup in the epic airguns, i do think make the line you walk in regard to " crud " in the air even finer.
The hole in the jet in my valve are daum small, 05 mm if not smaller.