Low budget materials though, a lot of time and effort required. A nice handmade touch to a self-build.
Broan Nutone Aluminum Range Hood Filter 99010200 9-1/16"" X 11-11/16"" X 3/8""
Tuscan Kitchen With Large Range Hood : Choosing Kitchen Range Hood Filters
Zephyr Z0F-C091 Charcoal Filter Replacement for the Siena Series Range Hoods Range Hood Filter Charcoal #RangeHoods
C2042PSSB-IS22-SS 42" C2000 Slim Baffle Series Range Hood Insert with 675 CFM Blower 7" Round Duct Variable Controls Baffle Filters and Halogen Lighting in Stainless Steel
Online shopping from a great selection at Health & Household Store.
How to Clean Greasy Range Hood Filters
How to Clean a Greasy Range Hood Filter (And Why You Should Often)
KUC48X 48" Pro-Style Undercabinet Range Hood with 600 CFM 4 Speeds Halogen Lighting and Dishwasher Safe Grease Filters in Stainless Steel