Hi, I just moved into my new place and discovered that the hood is not really removing smells efficently. I have the SMEG KAP600X, but am unable to find the charcoal filter- do all the KAP600X come with built in charcoal filters? Otherwise, any recommendations on what I should use to clear the air? The filter is a recirculation filter, so the smells are a real problem. Any tips appreciated!!