We've just moved, and the new place is a condo set up such that exterior ventilation is not possible. What everyone has is one or another kind of extractor fan that funnels stuff through a filter. I'm sure there is a name for this, but I don't know what it is. The point is, the one we have doesn't work at all well. It does nothing on low power, and on high power it mostly sucks up stuff from the rear burners and not the front ones. What comes out the vent is only slightly stripped of smoke, though it's pretty decent on grease. It is also 17 years old, and I'm betting there are good models on the market. Can anyone help me suss out the options here?