Ikhabhathi yokuphakama kwe-inverter yinhlangano yezinqubo zezibalo ezifakwe kwi-environment ye-positive pressure, enokwenzeka kwi-environments ezinezindlu zokudubula noma idust. Le ndlela yokubheka yokuphakama ayinamathuluzi okuphakathi kwe-positive pressure cabinet, kodwa futhi inamathuluzi okuphakathi okuphakathiwe kakhulu ukuze kuhlale kuhle ukusebenza kwezixhobo zezibalo kwiindlela ezinokuhlukahluka ezinokuhlukahluka.