The AIRBELT K2 Kombi includes a combination nozzle with retractable bristles for use on rugs and hard floors. The AIRBELT K2 Kombi has a suction-control knob that is located on the canister body. Hospital grade filtration out of the blox. HEPA Filtration Available. This unit is for homes with bare floor and little carpet. For true carpet cleaning buy a SEBO with the ET-1 power head. There is no beter way to clean carpet than with a rotating brush.