Hiya! I'm going to start thinking about sorting my kitchen out, been putting it off for three years, but I can't take it anymore. My extraction fan is huge and awful and I cannot wait to rip it off the wall. So my question is, do I have to replace it? Do I need one? The current one isn't on an outside wall so I have no idea where the extracted stuff is even going? Can anyone please shed some light? Thank you