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 grip on the grille. Both the fan and filter are equipped with PU foam sealing strips to achieve IP54 protection rating. Design: Filter fans stand out with their distinctive, aesthetically pleasing, functional, and safe design. Their unique construction allows them 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 14 microns.