Filter fan for system ventilation; easy installation; filter pads can be easily changed; degree of protection IP54; airflow direction can be easily changed; plain bearing; UL94 V-0 self-extinguishing plastic; fuse with 6 A; air delivery rate, free-blowing 61/70 m³/h; cutout [HxW] 125mm x 125mm; dimensions 145mm x 145mm