Dust filter material?

[WooZ_Lv]

I am going to mod my Define R3 front to support two 140mm fans properly (now they are glued with hot glue :D )

And I am thinking how to filter those intakes I have three ideas:

1. Use two aluminium 140mm filters.

2. Use single foam filter (280mm x 140mm)

3. Use single cloth filter (280mm x 140mm)

Which would be better? I thing foam would be better choice but I doesn't have any experience with aluminium or foam filters.

For me in first place is dust proofnes then ease of clean and finally airflow.

I use Prolimatech Blue Vortex 14 fans and I have cat and two mouse's in my room and PC is siting on the table.