I was really surprised when I brought a new cooker hood from Screwfix. It has no filters fitted? So I telephoned the help line and they were no help at all. Try B&Q they told me!! The cooker hood is model number GHX90SS. Can any kind sole tell me exactly what filters I need to buy. Maybe someone else has brought this filter-less Screfix hood. The product code is 59077. It's a Cata model filter fitted. Thanks to all the kind folk out there. Richard.