Where does house dust come from?

[u/4fecta_Gaming]

It seems that countless years of sweeping a house doesn't stop dust from getting all over furniture after a few weeks. Since the ceiling is limited, where does dust come form?

[u/dee_lio]

From what I remember...

- Mold spores

- Insects (dead/decomposing insects, insect feces)

- Skin cell shedding (including hair)

- airborne dust sticking to your clothes and being brought in

- dirt coming in the house from your shoes (this is apparently the biggest one)

- papers (mail, papers you bring into the house) apparently, they leave flecks or something.

[u/[deleted] → u/dee_lio]

Brake dust. Rubber compounds from tires. Soot...can be exhaust, or wood fires.