Grease filters should be replaced regularly. As the filters trap the grease from the air, they will become blocked over time. If the filters are filled with greasy residue, your cooker hood won't work as efficiently. Carbon filters need changing every 6 months to maintain their performance. Please check below for the list of compatible cooker hoods. Image for illustration purposes only. Compatible with eiQAN60BSSHEv2, eiQAN60BSSHE.