Where are the filters?
Immediately beneath the surface in most models (EX, FP, FN, FPK types). Filters are generally interchangeable allowing you to update your AirBench to an alternative specification if required.
In the FPW and FPT ranges the final filter is housed in the box to the left hand side and is accessed through a removable door.
In the RP range the main filters are again beneath the surface but are removed for changing via a removable front door.