First thing that users look for when choosing fan is noise… or rather lack thereof. Hydrion 120 is designed in a way to reduce air turbulence, which cause most of noise during its work (apart from motor itself). Thanks to this, fan noise should not exceed 20 dB which is a level of subtle whisper. Another source of audible noise is vibration, which is inseparable in any working motor. To prevent it from spreading throughout chassis, Hydrion 120 is equipped with anti-vibration pads in each corner(on both sides) which come in contact with the chassis. 1000 RPM is optimal fan speed that delivers 42,1 CFM airflow, but does not disturb user with too much noise otherwise generated by faster spinning blades.