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About taping the fan so all the air goes thru the filter:

How does a filter work? Air that goes thru it, gets particles removed. We want to maximize air that goes thru it, and it should be air that has particles in it.

To make more air go thru the filter, increase the pressure difference between the dirty side and the clean side. Fan speed is how we control this. And getting clean air away from the fan and dirty air to come close to the fan also seems directly related to fan speed - how fast and how far it ejects clean air.

It's all about fan speed, baby.

Plugging up parts of the fan unrelated to the filter cross section, can only slow the fan down. I see no reason why it would help in any way.



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