This is how my sink currently looks like. There's this metal cap thing on the right that has slits. It is hooked up to the dishwasher (a brand new Bosch European style one). I have never seen anything come out of it. What is it called? What does it do?
I am doing a complete kitchen remodel and I am wondering whether the new kitchen needs that exhaust thingy. I've been looking at photos of up-to-date kitchens online and I haven't noticed any of them have this contraption. Does that mean this thingy is some outdated technology that I don't need it for my kitchen remodel?