A hard disk drive includes a disk pack having at least one disk for recording and/or storing data and a spindle motor that support and rotates the disk, a base to which the disk pack is mounted, a cover that covers an upper surface of the base, and a respective filter disposed close to each of at least one of the major surfaces of the disk and extending in the radial direction of the disk including over at least an inner peripheral region of the disk. The filter has an absorbent layer capable of absorbing particles that come in contact with it. Particles on the surface of the disk, from the inner to the outer peripheral regions of the disk, are removed by the filter when the disk is rotated and the particles are flung off of the disk. Thus, particles will not damage the magnetic head(s) of the hard disk drive nor will the particles cause errors to occur in the recording and/or reproducing of data.