Resubmitting my previous post. Hopefully Outlook Express won't mutilate it so horribly this time.
First, try performing a little experiment. Lock yourself in a room. Stay there overnight. In the morning, observe that you are still alive. (If you are not alive, you need not continue with the experiment.) Since you have not used up all the oxygen in the room and died, this indicates that air must be getting into the room from somewhere else. You might want to repeat the experiment (assuming you are still alive), but with the entire house, and for a longer period. If you are still alive, then air is probably getting in from the outside - and bringing dust with it. If you do succeed in sealing out all air from the outside, you will likely find that this does not improve the quality of your life, even if it does reduce the amount of dust that gets in.
You are not the first person to confront this issue. The semiconductor industry has been working on it for a long time. They need to build Clean Rooms. Let's see what they do. You can get a pretty good description at
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According to this article: "Typical office building air contains from500,000 to 1,000,000 particles (0.5 microns or larger) per cubic foot of air." The article seems to imply (but doesn't really state explicitly) that100 particles is about as clean as you can get. What I would like to know is how they count those 1,000,000 particles in the typical office. I would guess you could add another zero for my office.
OK - I've been a bit flippant in the last couple paragraphs, but seriously,it might be time to compromise. I spent a lot of years battling against dust (but probably with not quite as much determination as you). Reading your post about all the scrubbing and cleaning you do, my fist thought was I wish you could move in with me. In time, I came to accept that the world is a very messy place, and trying to remove the dust, even from one house, is like trying to drain the water from one section of the ocean. It may well be that dust is like bacteria - that it's not good to be exposed to a lot of it, but you need some around to keep up your resistance to its bad effects.One day, even we will turn back into dust, and our efforts to keep our houses clean won't make any difference at all. Is all that scrubbing really the best thing you can do with your time to improve the quality of your life? As someone who still remembers when every house and public building reeked of cigarette smoke, I'm just happy to be rid of that smell, and I find dust to be little more than a minor inconvenience that can be kept in abeyance by vacuuming once a week. There's also a certain visceral sense of satisfaction that comes from getting into an out-of-the-way corner and vacuuming a big ball of dust.