Patent ID: 7239475

Claim:
A disk drive comprising: a disk drive base; a disk rotatably coupled to the disk drive base, the disk including a disk surface and defining an axis of rotation; a head stack assembly rotatably coupled to the disk drive base adjacent the disk surface; and an airflow diverter filter component disposed adjacent the disk surface upstream of the head stack assembly with respect to disk rotation induced airflow for modifying the disk rotation induced airflow adjacent the head stack assembly, the airflow diverter filter component including: a first filter element disposed adjacent the disk surface; a second filter element disposed between the first filter element and the head stack assembly; and a third filter element having a porosity finer than the first and second filter elements, the third filter element being generally radially further than the second filter element from the axis of rotation; wherein the disk rotation induced airflow generally enters the airflow diverter filter component through the first filter element and exits through the second and third filter elements.