show I put it on top of my desk or at the bottom? I knew since I was a little kid that hot air goes up and cold air goes down, maybe dust has some sort of behavior similar to this? does it float in the air everywhere or does it drop on the ground?
what's the best location, as high as possible or as low as possible? and since cold air stays down does that mean keeping it on the ground is the best thing?
what's the best location, as high as possible or as low as possible? and since cold air stays down does that mean keeping it on the ground is the best thing?