Crankcase breather catch cans
I know I'm a heretic, but on my Ecoboost Mustang, the PCV vents from the block, through a check valve and the catch can, to the intake. It keeps the intake valves from coking, a common problem on GDI Turbo engines. The catch can has a fine wire mesh screen on the out port. The oil vapors condense on the screen and drop to the bottom of the can. It works well. About 3 tablespoons are removed from the can at each oil change.