Ib rab phom yog ib yam khoom siv ua kua los yog compressed cua kom tso tawm sai li lub zog. Muaj ob hom tshuaj tsuag phom: hom twj tso kua mis thiab hom pressurized. Kuj tseem muaj cov phom phom siab, phom phom carlo, thiab cov phom tsis siv neeg rov qab.Th
Muaj ob lub ntsiab ntawm cov khoom siv rov qab rau cov khoom siv tshuaj tsuag hmoov: lim cov hom lossis ob chav cyclone. Cov khoom lim dej rov ua dua tshiab tso siab rau lub siab - cov khoom siv lim dej (filter element), raws li qhia hauv daim duab hauv qab no, uas tuaj yeem rov ua dua mo
Peb tau ua haujlwm nrog ntau lub tuam txhab, tab sis cov khoom thiab cov kev pabcuam muab los ntawm lub tuam txhab no tau txaus siab rau peb tshaj plaws.