Grease filters should be replaced regularlyAs the filters trap the grease from the air they will become blocked over timeIf the filters are filled with greasy residue your cooker hood won\'t work as efficientlyPlease check below for the list of compatible cooker hoodsImage for illustration purposes only Grease filter for selected electriQ cooker hoods.Models requiring 1 grease filter . . eiQCURV60BL . eiQCURV60SC . eiQCURV60WH. EIQCURV60SCTOUCH. EIQCURV60BLTOUCH Models requiring 2 grease filters eiQ60CHIMNEYSS . eiQ60CHIMNEYBL Model requiring 3 grease filters eiQSLIM90TOUCH. .