Review on 🌀 ELUTENG 120mm Fan Filter 2 Pack: IP40 Dustproof Blower Guard for Case Fans - Tool-Free Mesh Cover for Effective Ventilation and Dust Prevention by Mitchell Norman

Easy to install and clean. The inner frame is attached to the outside of the case, the foam is inserted and pressed into the outer frame. After installation, remove the outer frame and foam if dust has accumulated. Rinse the suds under the faucet and wring out as much water as possible, place the suds on a towel, fold the rest of the towel over the suds to finish drying, place the suds back into the outer one frame and snap it onto the inner frame .