Epilog Radius 30W
It looks like the air ONLY goes to the little metal tube directed at the "cut".
The Radius manual says "20psi" but offers no CFM requirements.

I am looking at
for the compressor, it is oilless, 56db, and 1.6cfm at 40psi.

Is the Radius air "always" on?

BTW, I am missing the little metal tube, I see a threaded hole on the bottom of the alum block at the lens head.,, is this where the air assist tube screws in?