*The noise level is messured in 3.3 ft distance from the machine and 5 ft from the floor. The machine is placed in a free field with OK160 pipe connected to the outlet and the inlet in a standard working situation. Multiair type 1020 1040 1100 Motor output [hp] 60 Hz 3.0 5.0 10 Rated current 460 V 3.9 6 12 Rated current 575 V 3.4 5.6 11.9 Motor rpm 3500 3500 3500 Blower rpm 3500 3500 3500 Weight [lb] 354.2 374 426.8 Sound Pressure Level* dB (A) 63 66 69 Distance 3.3 ft Multiair 1000 The high efficiency centrifugal blower unit is housed in a standard modular acoustic cabinet providing excellent...