Ashismyname

If you want to replace the blue filters, i would look into using filter foam. You could probably DIY some filters from the foam that some electronics come packed with, but airflow may be an issue as packing foam is usually more dense to cushion the impact. Most filter foam is measured in pores per inch with lower PPI giving better airflow, and less filtration. Amazon has lots of sizes and thicknesses so finding something for the project should be easy.