The ultimate question is this: mesh filters or baffle filters.
Mesh filters, or aluminum filters, have multiple layers of mesh that air must pass through so the grease sticks to the mesh. They pick up dust, lint, and hair, and their pressure loss increases over time until washed. The amount of these unwanted substances increases with added lint for a while until the flow drops and ventilation is compromised. To wash your mesh filters as thoroughly as possible, you should put them in the dishwasher and set it to steam. Nonetheless, the lint still doesn't always get removed by this method; you would have to do some additional, aggressive cleaning on your own. However, some still like how light and affordable mesh filters are. The mesh filters at K-Star are 5-layered, which is thicker than most other filters on the market. Each layer has its option, such as trapping or re-circulating oil.
Baffle filters, or permanent filters, force the air to move through a couple of 180 degree turns and in so doing deposits the grease in the bends. They maintain their efficiency over long periods of time and have a constant pressure loss that is probably lower than for mesh filters of the same size. Baffles wash easily because the surfaces do not trap lint.
You may have also heard of carbon filters, or charcoal filters. These filters are used for re-circulation, and they are needed if you want to make your range hood ductless. If your range hood has a duct, then carbon filters are not applicable.
Here is the bottom line: mesh filters are great if you are looking for an affordable option and don't mind doing some deep cleaning for them every now and then; baffle filters are the way to go if you would like your range hood to look premium and don't want to bother with filters for a long time to come.
If you still need any assistance choosing the right filter for your needs, don't hesitate to contact us. We will be glad to help!