Conic filter made by polyester and aluminum fibers (M class certification) that reduces to the minimum maintenance operations. The Bi-Vac system allows the user to choose between cyclonic or microfiber bag, Service inlet on board, With its built-in computer it is possible to control and manage maintenance, High efficiency motor with energy saving: 15% reduction on electric consumption, Break valve, The vacuum units can be connected to the piping network either from the right or the left. Soft Start system. Double protection electric control board with fuse block switches both on the main and secondary circuit, Thermal switch to protect the motor, The unit is entirely made of vibration proof, sound proof plastic material. Rust proof screws and bolts. System for dusty filter/full dust bag warning. Vacuum unit noise level below 70 dB, Microfiber dust bag capacity 18 l, Dust bin container capacity 21 l.