How does dust get everywhere?

Question

You go into a room that hasn’t had folks in it for 10 years and there is dust everywhere. I thought it was skin cells but obviously not.

Even rooms with no access to the outside have dust.

In: Mathematics

Answer 1

Any place that air can move through will gather dust, because air carries dust everywhere it goes.

Where does air get dust? From everything it touches. Stone, wood, grass, hair, skin – dust is basically erosion.

It is mostly dead cells though, to be honest. In your house, most of the dust is from the people who live there.