| 摘要 |
An anti-diffusion chemical breather assembly for disk drives having a body portion (20), a cover portion (40), and a filter media (50), including a layer (51) impregnated with activated charcoal granules (53). When assembled, the body portion (20) and cover portion (40) define therebetween a sealed tortuous passage 15 which provides fluid communication between external environment and a hard disk drive interior when the apparatus is positioned in a receiving cavity of a hard disk drive. The tortuous passage limits the rate of moisture entry into the disk drive unit.
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