High-power axial fans can be installed in either "blowing" or "extracting" modes. The ventilation grille's protective function prevents both mechanical damage and moisture ingress. With sealed cabinet protection, it meets IP54 rating according to EN60529/10.91. A splash-proof cover enables protection up to IP54 level. The filter pad can be easily replaced using the slotted handle on the grille. Both the fan and filter are equipped with PU foam sealing strips to achieve IP54 protection rating. Design: The filter fan stands out with its unique, aesthetically pleasing, functional, and safe design. Its innovative structure allows it to meet modern market demands: ultra-slim profile, quick installation, and high efficiency. Non-woven fiber filter pads are used to prevent dust particles larger than 18 microns.