AIR FILTER FOR MAGNETIC DISK DEVICE

PURPOSE:To prevent the dust adhered initially in an air filter from being scattered by fitting a filter member having a higher capture efficiency of minute particles and fitting another filter member being more coarse than the former filter to both the air intake and suction sides of the air flow of the former filter member to the titled air filter. CONSTITUTION:A magnetic disk 8 is rotated in the direction of arrow 13, a magnetic head 11 is fitted to a positioning mechanism 9 and positioned to an object track to record and reproduce the information. The air filter 10 is arranged at a position receiving an air flow 15 caused by the rotation of the magnetic disk 8, minute dust 4 coming externally passes through a coarse filter member 2 and a captured by the filter member 1 having a high capture efficiency of minute dust. Since the coarse filter member 2 is fitted, the dust 3 adhered to the filter member 1 in the manufacture of the air filter 10 is not scattered to the outside of the filter. Thus, the dust adhered to the main filter member at the manufacture of the air filter is removed out of the main filter member due to vibration but not scattered to the outside of the air filter.