Two inlets 160mm. The filter unit is made of a stable steel sheet construction. The complete powder coating of the housing guarantees a maintenance-free operation even under hard operating conditions.Technical data: Fan performance [m³/h]: 3.500. Pressure [Pa]: 2.500. Pre-filter: M5. Main-filter: F9. Motor performance [kW]: 2,2. Power supply [V/Hz]: 415 / 50. Power intake [A]: 5. Type of current: 3Ph+N+PE. Noise level [dB(A)]: ca. 72. Measurements (W x D x H) [mm]: 665 x 681 x 995. Weight [kg]: approx.… 136.