3D print fume venting in small workshop, what works?

[danny_3dprint]

PLA in living room was fine. Moved to ABS for outdoor work, fumes problem. Workshop is 3m x 4m, single window.

Options researching:

• Enclosure + carbon filter inline fan
• Direct vent to window via 4-inch duct
• Both (enclosure first, then vented)

Real-world: anyone here printed ABS/ASA in a small room without going outside between layers? What setup ate the fumes effectively without sounding like a jet engine?