Patent ID: 7990650

Claim:
A method of manufacturing a disk drive filtering system that reduces obstruction of air flow through a bypass channel associated with a disk drive, the method comprising: creating a bypass channel for the disk drive, wherein the air flows through the bypass channel, said bypass channel comprising an electrostatic pass-by filtering region and a filter free region disposed proximate to the electrostatic pass-by filtering region, said filter free region located in an approximately middle portion of said bypass channel so that the air flows substantially unobstructed through said filter free region; creating a negatively charged electrostatic pass-by filter; creating a positively charged electrostatic pass-by filter; and providing the negatively charged electrostatic pass-by filter on a first side of the pass-by filtering region; and providing the positively charged electrostatic pass-by filter on a second side of the electrostatic pass-by filtering region, said second side different from said first side, wherein the positively charged electrostatic pass-by filter and the negatively charged electrostatic pass-by filter filter the air that flows through the electrostatic pass-by filtering region.