High-power axial fans can be installed in either "blowing" or "extracting" modes. The ventilation grille's defensive function not only prevents mechanical damage but also resists moisture ingress. With sealed cabinet protection, it meets IP54 rating according to EN60529/10.91. A splash-proof cover can elevate the protection category to IP54 level. The filter pad can be easily replaced using the slotted handle on the grille. Both the fan and filter, equipped with PU foam sealing strips, achieve an IP54 protection rating. Design: The filter fan stands out with its distinctive, aesthetically pleasing, functional, and safe design. Its unique structure allows it to meet the demands of today's market: ultra-slim profile, quick installation, and high efficiency. Non-woven fiber filter pads are used to prevent dust particles larger than 17 microns.