The DEMCiflex dust filter offers an easy upgrade solution for users who wish to protect their case from excessive dust accumulation. The filter is compatible with the Lian Li E-ATX O11 Dynamic XL case and is installed at the bottom of the case. Thanks to the magnets on the filter frame, assembly is simple and tool-free. The filter is made of thick and durable polyester. At the same time, the mesh allows for air diffusion and only slightly obstructs airflow inside the case. This effect is reduced with dust accumulation, so the filter should be removed and cleaned periodically. Thanks to the magnetic mounting method, removing the filter is quick and easy.