The form factor or the case’s size is really important while deciding to buy an airflow case. These are the things you should look for while buying the airflow PC case: Form factor In this article, we will review our picks for some of the Best airflow PC cases. 2.7 Best Budget PC case for Airflow – Corsair Carbide 100R Why do you need the best Airflow PC case?Īfter you have put together your PC with the best and the most powerful processors and GPUs, all you need is a case with unrestricted airflow and cooling capabilities to eliminate excess heat buildup in the system and keep them running for the years to come.