First of all, Q-Filter® creates a vacuum to achieve filtration, using an exhauster. But that does not make it unique. What does make it unique is that it can create a vacuum up to -200mbar, where comparable systems at best achieve -50mbar.
An other unique feature is that the vacuum is continually controlled and gradually increased to keep the conditions for filtration optimal at all times. It even responds to changes in the amount of fluid coming in and the dirt concentration in it.
Finally the compact format factor (minimal floor space) and minimal energy consumption add to make Q-Filter® even more unique compared to anything else in the market.