Hello
These fans are installed in the case: https://www.nzxt.com/products... in the 120mm variant.
Experience has shown that the airflow in this case is quite good, although I use Corsair fans for this. but the difference is not great in terms of airflow. The rear panels are more closed than in the standard variant, which favours the airflow.

All in all, I would say a good airflow with the standard fans, and excellent dust filter.