Quote Originally Posted by NaeKuh View Post
dust doesnt get inside corners and other openings on the case because its being forced in postive pressure though the fan holes.

Vs.

Negative pressure, where every opening inside your case, even small cracks, can get caught with dust.

Polizei has point ... the more i think of it .. the more questions i get .. how much negative pressure are they? axial fans arent centrifugals, they cant generate enough pressure to create a semi-vacumn let alone vacumn to draw in the dust

it is possible to create a semi-vacumn state for packaging etc ... but to do so, requires a loud vacumn cleaner not just that, centrifugal motor

i've seen air leakage testing on homes where a large centrifugal motor is placed on the front door and the whole house (windows/doors) is shut tight. even with the differential air pressure, leakages doesnt have any dust around it

did we made a wrong assumption on the positive/negative pressure?