Vacuum cleaner is a machine that uses an air pump to actualize a fractional exhaustion to suck up dust and dirt, usually from floors, and also from other surfaces as well. The dirt/dust is collected by either a dust-bag or a cyclone for after disposal.
Vacuum cleaners, are in a array of sizes and models: from small battery-operated hand-held devices, huge anchored automated industrial one that can handle several hundred liters of dust before being emptied, to self-propelled vacuum trucks for recovery of ample spills or removal of contaminated soil.
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