Dust follows airflow and static. HVAC gaps, filter bypass, open windows, shedding textiles, pet traffic, dry indoor air, and vacuuming after dusting all reload surfaces.
Residue also matters: tacky polish or cleaner film turns normal dust into recurring buildup.
Recurrence timeline: dust returning in hours points to active airflow, construction fines, HVAC bypass, or tacky residue; dust returning in 1-3 days often points to textiles, pets, open windows, or vacuum order; weekly edge bands usually indicate normal load plus incomplete capture.
Environmental recurrence comes from return vents, leaky filter frames, dry static-prone air, shedding rugs, litter boxes, pet bedding, door mats, and cleaning order that sends particles airborne after surfaces were finished.