I don't see it as being effective as they claim it would be to clean out the dust. Sure it'll work a little bit, but most electronics attract dust off of electrostatic forces. Slowly but surely that will build up over time regardless of the fan direction since it's still using electricity. I could be wrong, I'm just kind of working off the physics that I have taken crossed with a bit of life experience which is always deadly, but I think that they're overhyping the idea.
1 in 8 people in the world do not have access to clean water.
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