Cooling is nice, though besides heat another factor to keep your hardware running in optimal condition are dust filters. Don't let the low retail street price fool you, the Cougar MX300 is equipped with a front, top and bottom dust filters.

The top filter is secured via magnetic strips, even though this solution is nowhere as nicely executed as with e.g. the Corsair cases, it however does the job perfectly.

The front panel features an integrated thin foam dust filter, a double backup as there's another removable plastic dust filter clipped onto the chassis itself.

The airflow is not limited at all as alike the Bitfenix Ronin case we reviewed before; nevertheless the perforated HDD cages limit the direct airflow onto the motherboard and/or graphics card.