Where does dust come from in a closed house?
Question:
Answers:
Skin cells that are shed daily, fibers from fabrics, dirt that is tracked into the house. The vents could be cleaned and you could invest in an air purifier.
Check your air filters for your heating/cooling system.
Dirty heating/AC ducts, people, pets, etc.
It settles out from air currents, and most of it is flaked off skin.
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