Features

• Filter units ( < 696-3534') 696-3534/, < 696-3531') 696-3531/, < 221-336') 221-336/ & < 221-342') 221-342/ ) include filter pads. Filter pad replacements (< 494-7975') 494-7975/ and < 494-7981') 494-7981/ ) are also available separately for filter units < 221-336') 221-336/ & < 221-342') 221-342/. Plastic Filter Units. A 4mm filter gives 60% retention of dust particles (replacement filters 80 x 80mm < 494-7975') 494-7975/ & 120 x 120mm < 494-7981') 494-7981/ The finger guard is attached to the fan with screws (not supplied). The mesh screen and filter are then retained by the outer cover which clips over the finger guard