Combined https://www.printables.com/model/384053-kotto-fume-absorber-right-angle-pipe and https://www.printables.com/model/280283-bambu-labs-x1c-exhuast-adapter to make an exhaust adapter that would work with my Kotto fume extractor. Doing so(while exhuming the fumes into the attic) has eliminated the smell of ASA in my printing area.

I printed in PETG with supports, printing flat on the flange and manually adding supports under the overhanging elbow, inside the pipe and the beginning circle of the pipe as it comes out of the flange. Supports should really only be necessary down the middle of the pipe, not all over.