dan48p
+1y
if you tend to have moisture problems in the shops air system then i would use a filter right before the gun.
if the air is plumbed properly and you have a decent filter then you shouldn't have a problem. i just use a small sharpe filter (880 i think it is) and have never had a problem with to much moisture in my lines.
never hurts though, if your not sure i would put one on just to be safe.