Fooska ka-qaboojinta miraha iyo khudradda ayaa si dhakhso ah oo siman uga saari kara kuleylka duurka ah oo ay soo qaadaan, oo ay ku sii dheereeyaan muddada miraha iyo khudradda, oo ay sii wanaajiso nafaqada miraha iyo khudradda, iyo hagaajinta tayada haynta cusub.
Joojinta vacuumku waa nidaamka ugu dhakhsaha badan uguna qiimayaasha ugu waxtarka badan ee khudaarta, miraha, ubaxa, iwm.