Hi. We are at kitchen stage with our block built self build. I am keen to get yer opinions. Here is where I’m at.  we have an peninsula type kitchen. Induction hob going on the peninsula in the middle of the room. I have worked hard on Airtightness so I presumed we would go with a recirculating extractor hob. I don’t want a hole in the wall..Some questions - are these hobs  effective against smells…if I am frying onions and the extractor is on … it will suck the moist air and all into the extr