Although its use has been mainly associated within the high-vacuum range (down to 10−9 mbar), diffusion pumps today can produce pressures approaching 10−10 mbar when properly used with modern fluids and accessories.
Iako je njeno korištenje bilo uglavnom povezano u sklopu visoko-vakuumskih raspona (prema dolje 10-9 mbar- a), difuzijske pumpe danas mogu proizvesti pritiske približno 10-10 mbar, nakon ispravnog korištenja s modernom i dodatnom opremom.