Product review (1 stars): Useless Accessory
This filter is designed to fit into a molded recess in the mesh grease filter that mounts on the upper hood housing directly in front of the fan.  Cheap being what it is, the charcoal filter does not fit into the recess of the grease filter so there is no way to keep this filter out of the fan blades.  This is a very poor design. In fact, the entire filter and mounting arrangement is poorly designed.  Save your money.  There is no way to make this filter work.