If it's got no frost dust filter then you can get ones that are either screwed in place with the case fans, or clip on magnetically (magnets in the corners stick to the screws mounting the fans). They're a few quid on ebay and Amazon and other stores. You'll want one on each front intake.
There are branded ones by people like Silverstone
Or cheaper non-branded ones.
I can't tell for sure, but it looks like that case front panel has the front panel with the vertical dashes cut into it, and then something else - some kind of grille or mesh behind it?
If so, and if it's easily removable, you may want to take it out as a) it's not doing much good anyway, b) it will be superseded by the fine mesh filters, and c) it's one less thing for the fans to have to suck air through. If the fans have to suck air through the front panel, then through that grille, and then through actual dust filters, it's going to reduce airflow even more.
Not a criticism, just an observation aimed more at anyone else who might read the topic - if you buy a cheap case and then spend extra to get things like more fans, or dust filters, or whatever, it's often better to just get a more expensive case that has all of these built in plus other features. Can even work out cheaper.
Facebook
Twitter
Instagram