Grid filters are typically used in domestic kitchen hoods to filter grease vapors and oil mists. They consist of a stainless-steel sheet structure containing a filter element like that of a frame filter. The sheet-metal grid can be perforated as needed. Customers can specify their own identifying designs. Grid filters have a flat surface and a flush handle. They are particularly hard wearing, safe to use, can be regenerated, and are easy to wash in a dishwasher.