Product review (1 stars): With this problem the best bet is probably to just break the wire mesh ...
I have an AV series extractor, and this filter does not fit into the matching mesh grill even though there is a depression in that item to allow for it. With both that mesh and this installed, this filter bumps into the fan and prevents it from running. With this problem the best bet is probably to just break the wire mesh and charcoal pads out of the metal frame on this filter, or just attach the whole thing to the outside with a needle and thread.