Yes, hermetically sealed. BUT... Dust and dirty air gets sucked into the cooling vents, coats the motherboards, etc. There is really no getting around that anyway. What I have found is the dirtier they are, the more problems you have with them. Now have I seen a hard drive fail in a dusty environment? Absolutely. Have I found them fail in cleaner ones? Yes again.
But my experience is that dirt causes more failures in PCs than most other causes, and keeping a clean environment isn't that hard. A filtered enclosure is a good start. An air conditioned room is ideal.
But my experience is that dirt causes more failures in PCs than most other causes, and keeping a clean environment isn't that hard. A filtered enclosure is a good start. An air conditioned room is ideal.
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