Magnetic Bearing: harnesses magnetic Levitation technology to provide lower noise, higher performance, and a longer lifespan. . Air flow – 75 CFM. Noise level – 35. 0 decibels%ocs%Custom rotor design: Delivers the perfect balance between high static pressure and high airflow, operating flawlessly in the most challenging environments%ocs%Extensive control range: a 2, 000 RPM control range gives you total control between silence and absolute performance