I have recently just finished building my first PC. One thing that came with my cass is a built in, non removable dust filter and the only way to take out the filter is to pop out the front pannel (not the glass panel or the one behind it) and clean it like that. The only thing I am afraid is that I will break pin for the front IO connectors. If anyone has the same case, the Corsair Spec 01, please help!