the.com/dust collector

means An industrial device that pulls dust, debris, and airborne particles out of the air in a workshop or factory and traps them in a filter or bin, keeping the working environment breathable.

from A plain compound of "dust" and "collector," each doing exactly what it says. "Dust" descends from Old English "dūst," a word for fine dry powder with cousins across the Germanic languages. "Collector" comes through Old French from Latin "colligēre," "to gather together" (col- "together" + legere "to gather, pick"). The machine sense is a modern industrial coinage; amusingly, the same phrase also drifted into everyday speech to mean any neglected object that just sits and gathers dust — the device that prevents dust and the trinket that attracts it sharing one name.