I did my usual Saturday-morning cleaning, but this time I decided everything could use a little dusting.
I've got these three HEPA air purifiers that I recently bought at Big Lots. (That's a chain store that specializes in refurbishments and closeouts.) They've got this radio-control thing that adjusts their fan speed depending on how much particulate matter passes through its sensor.
I've also got a two-gallon air compressor that I bought at Wallyworld a few years ago. With something to knock the dust airborne and something to catch it out of the air, there's no better way to get rid of the dust. So I fired up the compressor, attached the 25-foot hose, and started shooting compressed air on stuff, such as the slatted door to the a/c closet, the tops of books on shelves, the tops of doorjambs, the powerstrips under my computer desk, and so on.
All that took about an hour, during which time I turned the air purifiers up to full-blast so as to catch as much dust as possible quickly before it resettles. After that, I vacuumed up all the dust bunnies and emptied the compressor. It had collected quite a bit of moisture in its tank and I found that the drain valve is stuck so I couldn't drain it. (Cheap piece of shit!) Not all dust is easily blown away with compressed air, so some surfaces still needed dusting in the traditional manner. The place feels a hell of a lot cleaner now.