[nosianu]

Try shaking out a piece of clothing in full sunlight. It helps you see the millions of future dust particles that will come off your clothing.

Over the years I found that of all the dust in my home the vast majority comes from my clothing. I deduced that because the collected dust looks the same as what I find in the dryer, and it feels like cotton too (my by far most warn kind of fiber).

That means rooms are full of tiny particles from your clothes, if I assume that my home is not an anomaly (and why should it be).

Direct sunlight really helps to see how much dust there is all around us, and how with every little movement we create more. That does not even show the particles too small to be seen. The difference is gigantic - without that sunlight you don't see any dust and think the air is clean.

I'm not too concerned, since humanity must have dealt with this for a long time. Particles from fire especially, and there are lots coming from even the tiniest flame. My main worry would be chemicals we add to clothes, but given that by now we ingest plastic pretty much all the time, with every meal, with every breath, we just have to wait and see. I don't see a way to end this long-running experiment.